Black Swan
type: MusicGroup
description: thumb|Black swan The black swan (Cygnus atratus) is a large waterbird, a species of swan which breeds mainly in the southeast and southwest regions of Australia. Within Australia, the black swan is n
popularity: 11
followers: 84
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1fa7234942e3a329ef4d73749cc0ddece6ac08529ee1a1ef9f430aabdb2f6bc2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953592
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953592
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/055f3a8e-2600-43a3-a312-5244badad106.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/055f3a8e-2600-43a3-a312-5244badad106.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/055f3a8e-2600-43a3-a312-5244badad106
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T05:36:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1fa7234942e3a329ef4d73749cc0ddece6ac08529ee1a1ef9f430aabdb2f6bc2","name":"Black Swan","registered_at":"2026-06-14T05:00:43Z","symbol":"NIM0346263","token_address":"0x5c15910802a94e739076f4ee222397ff0cf39ebe","type":"artist","uuid":"055f3a8e-2600-43a3-a312-5244badad106"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa7234942e3a329ef4d73749cc0ddece6ac08529ee1a1ef9f430aabdb2f6bc2. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/055f3a8e-2600-43a3-a312-5244badad106.json and https://artists.proofprofile.net/proofs/artist/055f3a8e-2600-43a3-a312-5244badad106.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T05:36:59Z
  text: {"copyright_id":"0x1fa7234942e3a329ef4d73749cc0ddece6ac08529ee1a1ef9f430aabdb2f6bc2","name":"Black Swan","registered_at":"2026-06-14T05:00:43Z","symbol":"NIM0346263","token_address":"0x5c15910802a94e739076f4ee222397ff0cf39ebe","type":"artist","uuid":"055f3a8e-2600-43a3-a312-5244badad106"}
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