Hail Sagan
type: MusicGroup
popularity: 16
followers: 4221
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x323c6ede9ea3df23d52083ff7cb2e28990d0ccc4157a38c086bfb33b0cc926c7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4505ce39-1638-46b5-abee-33ebbfcd3fef.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4505ce39-1638-46b5-abee-33ebbfcd3fef.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4505ce39-1638-46b5-abee-33ebbfcd3fef
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x323c6ede9ea3df23d52083ff7cb2e28990d0ccc4157a38c086bfb33b0cc926c7","name":"Hail Sagan","registered_at":"2026-06-14T11:42:07Z","symbol":"NIM0441953","token_address":"0x021987a04b9cfcba08771530d47ca544e365e206","type":"artist","uuid":"4505ce39-1638-46b5-abee-33ebbfcd3fef"}
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 0x323c6ede9ea3df23d52083ff7cb2e28990d0ccc4157a38c086bfb33b0cc926c7. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4505ce39-1638-46b5-abee-33ebbfcd3fef.json and https://artists.proofprofile.net/proofs/artist/4505ce39-1638-46b5-abee-33ebbfcd3fef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x323c6ede9ea3df23d52083ff7cb2e28990d0ccc4157a38c086bfb33b0cc926c7","name":"Hail Sagan","registered_at":"2026-06-14T11:42:07Z","symbol":"NIM0441953","token_address":"0x021987a04b9cfcba08771530d47ca544e365e206","type":"artist","uuid":"4505ce39-1638-46b5-abee-33ebbfcd3fef"}
album: Dark Cloud
  type: MusicAlbum
  date published: 2016-06-20
album: Hail Sagan
  type: MusicAlbum
  date published: 2016-10-14
album: Hail Sagan
  type: MusicAlbum
  date published: 2017-05-25
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  type: MusicAlbum
  date published: 2017-05-25
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  date published: 2017-06-27
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  date published: 2017-06-27
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  type: MusicAlbum
  date published: 2017-12-18
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  type: MusicAlbum
  date published: 2017-12-22
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  type: MusicAlbum
  date published: 2018-10-19
album: Ultimate Collection
  type: MusicAlbum
  date published: 2019-04-30
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  type: MusicAlbum
  date published: 2020-03-13
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  type: MusicAlbum
  date published: 2023-01-27
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  type: MusicAlbum
  date published: 2023-03-17
album: Disclosure
  type: MusicAlbum
  date published: 2023-04-14