🕷️ Crawler Inspector

URL Lookup

Direct Parameter Lookup

Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 123 (from laksa050)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa123.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://golden.com/wiki/Quantum_superposition-WXDMV\')), getAhrefsUnparsedNoserviceFromURL(\'https://golden.com/wiki/Quantum_superposition-WXDMV\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/golden.com\/wiki\/Quantum_superposition-WXDMV","crawl_time":1768335028,"first_indexed_time":1587609785,"http_code":200,"src_unparsed":"com,golden!\/wiki\/Quantum_superposition-WXDMV s443","src_root_hash":"15919450346515681123","history_drop_reason":null,"meta_title":"Quantum superposition | Golden","meta_descriptions":["Quantum Superposition is a fundamental principle of quantum mechanics."],"attrs_boilerpipe_text":"Quantum Superposition is a fundamental principle of quantum mechanics. It states that, much like waves in classical physics, any two (or more)\nquantum states\ncan be added together (\"superposed\") and the result will be another valid quantum state; and conversely, that every quantum state can be represented as a sum of two or more other distinct states. Mathematically, it refers to a property of solutions to the Schrödinger equation; since the Schrödinger equation is linear, any linear combination of solutions will also be a solution.\nAn example of a physically observable manifestation of the wave nature of\nquantum systems\nis the interference peaks from an electron beam in a double-slit experiment. The pattern is very similar to the one obtained by diffraction of classical waves. Another example is a quantum logical qubit state, as used in\nquantum information processing\n, which is a quantum superposition of the \"basis states\".","attrs_markdown":"[![Golden logo](https:\/\/golden.com\/static\/images\/432cf876e045a00ffa76.png)](https:\/\/golden.com\/query)\n\nCreate\n\n[Log in](https:\/\/golden.com\/login)\n\n[Enquire now](https:\/\/golden.com\/pricing)\n\n![Quantum superposition](https:\/\/media-thumbs.golden.com\/dHwrhNaOfOFqijojdSidw7tqZJ8=\/100x100\/smart\/golden-storage-production.golden-support.com%2Ftopics%2F300px--Quantum_superposition_of_states_and_decoherence.ogv.jpg)\n\nFollowFollow\n\nRefresh Data\n\nSave to List\n\n# Quantum superposition\nQuantum Superposition is a fundamental principle of quantum mechanics.\n\n[Overview](https:\/\/golden.com\/wiki\/Quantum_superposition-WXDMV)[Structured Data](https:\/\/golden.com\/wiki\/Quantum_superposition-WXDMV\/structured_data)[Issues](https:\/\/golden.com\/wiki\/Quantum_superposition-WXDMV\/issues)[Contributors](https:\/\/golden.com\/wiki\/Quantum_superposition-WXDMV\/contributors)\n\n### Contents\n[Timeline](https:\/\/golden.com\/wiki\/Quantum_superposition-WXDMV#Timeline)[Table: Further Resources](https:\/\/golden.com\/wiki\/Quantum_superposition-WXDMV#Table:-Further-Resources)[References](https:\/\/golden.com\/wiki\/Quantum_superposition-WXDMV#References)\n\n#### Other attributes\nWikidata ID\n\n[Q830791](https:\/\/www.wikidata.org\/wiki\/Q830791 \"https:\/\/www.wikidata.org\/wiki\/Q830791\")\n\nQuantum Superposition is a fundamental principle of quantum mechanics. It states that, much like waves in classical physics, any two (or more) [quantum states](https:\/\/golden.com\/wiki\/Quantum_state-V9EX4D) can be added together (\"superposed\") and the result will be another valid quantum state; and conversely, that every quantum state can be represented as a sum of two or more other distinct states. Mathematically, it refers to a property of solutions to the Schrödinger equation; since the Schrödinger equation is linear, any linear combination of solutions will also be a solution.\n\nAn example of a physically observable manifestation of the wave nature of [quantum systems](https:\/\/golden.com\/wiki\/Quantum_system-K44VMM) is the interference peaks from an electron beam in a double-slit experiment. The pattern is very similar to the one obtained by diffraction of classical waves. Another example is a quantum logical qubit state, as used in [quantum information processing](https:\/\/golden.com\/wiki\/Quantum_Information_Processing_\\(QIP\\)), which is a quantum superposition of the \"basis states\".\n\n### Timeline\nNo Timeline data yet.\n\n### Further Resources\nTitle\n\nAuthor\n\nLink\n\nType\n\nDate\n\nQuantum Superposition\n\n<https:\/\/jqi.umd.edu\/glossary\/quantum-superposition>\n\nWeb\n\nQuantum Superposition, Explained Without Woo Woo\n\n<https:\/\/www.youtube.com\/watch?v=ZUipVyVOm-Y>\n\nWeb\n\nNovember 28, 2021\n\nSchrödinger's cat: A thought experiment in quantum mechanics - Chad Orzel\n\n<https:\/\/www.youtube.com\/watch?v=UjaAxUO6-Uw>\n\nWeb\n\nOctober 14, 2014\n\nSuperposition and entanglement\n\nDe Voorhoede\n\n<https:\/\/www.quantum-inspire.com\/kbase\/superposition-and-entanglement\/>\n\nWeb\n\nSuperposition of Quantum States\n\n<https:\/\/www.youtube.com\/watch?v=VwWRX9IdblE>\n\nWeb\n\nAugust 9, 2018\n\n1\n\n2\n### References\n\n![](<data:image\/svg+xml,%3csvg xmlns='http:\/\/www.w3.org\/2000\/svg' width='40' height='40' fill='none'%3e%3crect width='40' height='40' fill='%23FFE500' rx='7'\/%3e%3cpath stroke='%23323232' stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M27.084 25.666h5.666M20 32.75c-7.042 0-12.75-5.708-12.75-12.75S12.958 7.25 20 7.25 32.75 12.958 32.75 20'\/%3e%3cpath stroke='%23323232' stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M22.269 22.15v2.533c0 .536-.303 1.027-.783 1.267l-2.01 1.005a1.204 1.204 0 0 1-1.743-1.077V22.15l-2.85-2.203a1.416 1.416 0 0 1-.55-1.121v-1.872c0-.665.54-1.204 1.205-1.204h8.925c.665 0 1.204.54 1.204 1.204v1.878c0 .439-.204.853-.552 1.121L22.27 22.15Z' clip-rule='evenodd'\/%3e%3cpath stroke='%23323232' stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M27.084 29.916h5.666'\/%3e%3c\/svg%3e>)\n\n## Find more entities like Quantum superposition\nUse the Golden Query Tool to find similar entities by any field in the Knowledge Graph, including industry, location, and more.\n\n[Open Query Tool](https:\/\/golden.com\/query)\n\n[Access by API](https:\/\/golden.com\/product\/api)\n\n[![Golden Query Tool](https:\/\/golden.com\/static\/images\/2432bd629e23c44a988d.png)](https:\/\/golden.com\/query)\n\n[![Golden logo](https:\/\/golden.com\/static\/images\/b04063256d0d506a816e.png)](https:\/\/golden.com\/home)\n\n### Company\n- [Home](https:\/\/golden.com\/home)\n- [Press & Media](https:\/\/golden.com\/about\/press-and-media)\n- [Blog](https:\/\/golden.com\/blog)\n- [Careers](https:\/\/golden.com\/about\/careers)\n- [WE'RE HIRING](https:\/\/golden.com\/about\/careers)\n\n### Products\n- [Knowledge Graph](https:\/\/golden.com\/product\/knowledge-graph)\n- [Query Tool](https:\/\/golden.com\/product\/query-tool)\n- [Data Requests](https:\/\/golden.com\/product\/data-requests)\n- [Knowledge Storage](https:\/\/golden.com\/product\/knowledge-storage)\n- [API](https:\/\/golden.com\/product\/api)\n- [Pricing](https:\/\/golden.com\/pricing)\n- [Enterprise](https:\/\/golden.com\/enterprise)\n- [ChatGPT Plugin](https:\/\/golden.com\/product\/chatgpt)\n\n### Legal\n- [Terms of Service](https:\/\/golden.com\/about\/terms-of-service)\n- [Enterprise Terms of Service](https:\/\/golden.com\/about\/enterprise-terms-of-service)\n- [Privacy Policy](https:\/\/golden.com\/about\/privacy-policy)\n\n### Help\n- [Help center](https:\/\/goldenhq.notion.site\/goldenhq\/Golden-Guide-1eef7518f3ca43da8d6ee4d54307801b)\n- [API Documentation](https:\/\/docs.golden.com\/)\n- [Contact Us](https:\/\/golden.com\/about\/contact-us)\n\nBy using this site, you agree to our [Terms of Service](https:\/\/golden.com\/about\/terms-of-service).\n\nSUBSCRIBE\n\n- Sort A to Z\n- Sort Z to A\n\n- Sort A to Z\n- Sort Z to A\n\n- Sort A to Z\n- Sort Z to A\n\n- Sort A to Z\n- Sort Z to A\n\n- Sort A to Z\n- Sort Z to A\n\n- - [Home](https:\/\/golden.com\/home)\n  - [Product](https:\/\/golden.com\/product\/knowledge-graph)\n  - [Data CreditsNEW](https:\/\/golden.com\/product\/data-credits)\n  - [DatasetsNEW](https:\/\/golden.com\/solutions\/datasets)\n  - [ChatGPT Plugin](https:\/\/golden.com\/product\/chatgpt)\n  - [API](https:\/\/golden.com\/product\/api)\n  - [CRM Integration](https:\/\/golden.com\/product\/crm-integration)\n  - [Careers](https:\/\/golden.com\/about\/careers)\n  - [Blog](https:\/\/golden.com\/blog)\n- ***\n- - [Terms of Service](https:\/\/golden.com\/about\/terms-of-service)\n  - [API Documentation](https:\/\/docs.golden.com\/)\n- ***\n- [Contact Us](https:\/\/golden.com\/about\/contact-us)\n\n- Content Issue","attrs_readable_markdown":null,"meta_canonical":null}

3. Robots.txt Check

Query:

Response:

4. Spam/Ban Check

Query:

Response:

5. Seen Status Check

ℹ️ Skipped - page is already crawled

📄

INDEXABLE

✅

CRAWLED

2 months ago

🚫

ROBOTS BLOCKED

Page Info Filters

Filter	Status	Condition	Details
HTTP status	PASS	`download_http_code = 200`	HTTP 200
Age cutoff	PASS	`download_stamp > now() - 6 MONTH`	2.8 months ago
History drop	PASS	`isNull(history_drop_reason)`	No drop reason
Spam/ban	PASS	`fh_dont_index != 1 AND ml_spam_score = 0`	ml_spam_score=0
Canonical	PASS	`meta_canonical IS NULL OR = '' OR = src_unparsed`	Not set

Page Details

Property	Value
URL	https://golden.com/wiki/Quantum_superposition-WXDMV
Last Crawled	2026-01-13 20:10:28 (2 months ago)
First Indexed	2020-04-23 02:43:05 (5 years ago)
HTTP Status Code	200
Meta Title	Quantum superposition \| Golden
Meta Description	Quantum Superposition is a fundamental principle of quantum mechanics.
Meta Canonical	null
Boilerpipe Text	Quantum Superposition is a fundamental principle of quantum mechanics. It states that, much like waves in classical physics, any two (or more) quantum states can be added together ("superposed") and the result will be another valid quantum state; and conversely, that every quantum state can be represented as a sum of two or more other distinct states. Mathematically, it refers to a property of solutions to the Schrödinger equation; since the Schrödinger equation is linear, any linear combination of solutions will also be a solution. An example of a physically observable manifestation of the wave nature of quantum systems is the interference peaks from an electron beam in a double-slit experiment. The pattern is very similar to the one obtained by diffraction of classical waves. Another example is a quantum logical qubit state, as used in quantum information processing , which is a quantum superposition of the "basis states".
Markdown	[![Golden logo](https://golden.com/static/images/432cf876e045a00ffa76.png)](https://golden.com/query) Create [Log in](https://golden.com/login) [Enquire now](https://golden.com/pricing) ![Quantum superposition](https://media-thumbs.golden.com/dHwrhNaOfOFqijojdSidw7tqZJ8=/100x100/smart/golden-storage-production.golden-support.com%2Ftopics%2F300px--Quantum_superposition_of_states_and_decoherence.ogv.jpg) FollowFollow Refresh Data Save to List # Quantum superposition Quantum Superposition is a fundamental principle of quantum mechanics. [Overview](https://golden.com/wiki/Quantum_superposition-WXDMV)[Structured Data](https://golden.com/wiki/Quantum_superposition-WXDMV/structured_data)[Issues](https://golden.com/wiki/Quantum_superposition-WXDMV/issues)[Contributors](https://golden.com/wiki/Quantum_superposition-WXDMV/contributors) ### Contents [Timeline](https://golden.com/wiki/Quantum_superposition-WXDMV#Timeline)[Table: Further Resources](https://golden.com/wiki/Quantum_superposition-WXDMV#Table:-Further-Resources)[References](https://golden.com/wiki/Quantum_superposition-WXDMV#References) #### Other attributes Wikidata ID [Q830791](https://www.wikidata.org/wiki/Q830791 "https://www.wikidata.org/wiki/Q830791") Quantum Superposition is a fundamental principle of quantum mechanics. It states that, much like waves in classical physics, any two (or more) [quantum states](https://golden.com/wiki/Quantum_state-V9EX4D) can be added together ("superposed") and the result will be another valid quantum state; and conversely, that every quantum state can be represented as a sum of two or more other distinct states. Mathematically, it refers to a property of solutions to the Schrödinger equation; since the Schrödinger equation is linear, any linear combination of solutions will also be a solution. An example of a physically observable manifestation of the wave nature of [quantum systems](https://golden.com/wiki/Quantum_system-K44VMM) is the interference peaks from an electron beam in a double-slit experiment. The pattern is very similar to the one obtained by diffraction of classical waves. Another example is a quantum logical qubit state, as used in [quantum information processing](https://golden.com/wiki/Quantum_Information_Processing_\(QIP\)), which is a quantum superposition of the "basis states". ### Timeline No Timeline data yet. ### Further Resources Title Author Link Type Date Quantum Superposition <https://jqi.umd.edu/glossary/quantum-superposition> Web Quantum Superposition, Explained Without Woo Woo <https://www.youtube.com/watch?v=ZUipVyVOm-Y> Web November 28, 2021 Schrödinger's cat: A thought experiment in quantum mechanics - Chad Orzel <https://www.youtube.com/watch?v=UjaAxUO6-Uw> Web October 14, 2014 Superposition and entanglement De Voorhoede <https://www.quantum-inspire.com/kbase/superposition-and-entanglement/> Web Superposition of Quantum States <https://www.youtube.com/watch?v=VwWRX9IdblE> Web August 9, 2018 1 2 ### References ![](<data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' fill='none'%3e%3crect width='40' height='40' fill='%23FFE500' rx='7'/%3e%3cpath stroke='%23323232' stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M27.084 25.666h5.666M20 32.75c-7.042 0-12.75-5.708-12.75-12.75S12.958 7.25 20 7.25 32.75 12.958 32.75 20'/%3e%3cpath stroke='%23323232' stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M22.269 22.15v2.533c0 .536-.303 1.027-.783 1.267l-2.01 1.005a1.204 1.204 0 0 1-1.743-1.077V22.15l-2.85-2.203a1.416 1.416 0 0 1-.55-1.121v-1.872c0-.665.54-1.204 1.205-1.204h8.925c.665 0 1.204.54 1.204 1.204v1.878c0 .439-.204.853-.552 1.121L22.27 22.15Z' clip-rule='evenodd'/%3e%3cpath stroke='%23323232' stroke-linecap='round' stroke-linejoin='round' stroke-width='2.5' d='M27.084 29.916h5.666'/%3e%3c/svg%3e>) ## Find more entities like Quantum superposition Use the Golden Query Tool to find similar entities by any field in the Knowledge Graph, including industry, location, and more. [Open Query Tool](https://golden.com/query) [Access by API](https://golden.com/product/api) [![Golden Query Tool](https://golden.com/static/images/2432bd629e23c44a988d.png)](https://golden.com/query) [![Golden logo](https://golden.com/static/images/b04063256d0d506a816e.png)](https://golden.com/home) ### Company - [Home](https://golden.com/home) - [Press & Media](https://golden.com/about/press-and-media) - [Blog](https://golden.com/blog) - [Careers](https://golden.com/about/careers) - [WE'RE HIRING](https://golden.com/about/careers) ### Products - [Knowledge Graph](https://golden.com/product/knowledge-graph) - [Query Tool](https://golden.com/product/query-tool) - [Data Requests](https://golden.com/product/data-requests) - [Knowledge Storage](https://golden.com/product/knowledge-storage) - [API](https://golden.com/product/api) - [Pricing](https://golden.com/pricing) - [Enterprise](https://golden.com/enterprise) - [ChatGPT Plugin](https://golden.com/product/chatgpt) ### Legal - [Terms of Service](https://golden.com/about/terms-of-service) - [Enterprise Terms of Service](https://golden.com/about/enterprise-terms-of-service) - [Privacy Policy](https://golden.com/about/privacy-policy) ### Help - [Help center](https://goldenhq.notion.site/goldenhq/Golden-Guide-1eef7518f3ca43da8d6ee4d54307801b) - [API Documentation](https://docs.golden.com/) - [Contact Us](https://golden.com/about/contact-us) By using this site, you agree to our [Terms of Service](https://golden.com/about/terms-of-service). SUBSCRIBE - Sort A to Z - Sort Z to A - Sort A to Z - Sort Z to A - Sort A to Z - Sort Z to A - Sort A to Z - Sort Z to A - Sort A to Z - Sort Z to A - - [Home](https://golden.com/home) - [Product](https://golden.com/product/knowledge-graph) - [Data CreditsNEW](https://golden.com/product/data-credits) - [DatasetsNEW](https://golden.com/solutions/datasets) - [ChatGPT Plugin](https://golden.com/product/chatgpt) - [API](https://golden.com/product/api) - [CRM Integration](https://golden.com/product/crm-integration) - [Careers](https://golden.com/about/careers) - [Blog](https://golden.com/blog) - * - - [Terms of Service](https://golden.com/about/terms-of-service) - [API Documentation](https://docs.golden.com/) - * - [Contact Us](https://golden.com/about/contact-us) - Content Issue
Readable Markdown	null
Shard	123 (laksa)
Root Hash	15919450346515681123
Unparsed URL	com,golden!/wiki/Quantum_superposition-WXDMV s443