Cahill Costello
type: MusicGroup
genre: ambient
genre: post-rock
popularity: 8
followers: 672
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc0dd6f2a069f0fcacd50e787d3abb8c9e78d9778c0471d8282b69a43f7ff54d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7c0adac-e636-4846-8e6d-1f725cadf804.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7c0adac-e636-4846-8e6d-1f725cadf804.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f7c0adac-e636-4846-8e6d-1f725cadf804
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbc0dd6f2a069f0fcacd50e787d3abb8c9e78d9778c0471d8282b69a43f7ff54d","name":"Cahill Costello","registered_at":"2026-06-21T16:00:25Z","symbol":"NIM1965933","token_address":"0xf828e07faa9c58531c0469a927e84ceb1e5e33f2","type":"artist","uuid":"f7c0adac-e636-4846-8e6d-1f725cadf804"}
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 0xbc0dd6f2a069f0fcacd50e787d3abb8c9e78d9778c0471d8282b69a43f7ff54d. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7c0adac-e636-4846-8e6d-1f725cadf804.json and https://artists.proofprofile.net/proofs/artist/f7c0adac-e636-4846-8e6d-1f725cadf804.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xbc0dd6f2a069f0fcacd50e787d3abb8c9e78d9778c0471d8282b69a43f7ff54d","name":"Cahill Costello","registered_at":"2026-06-21T16:00:25Z","symbol":"NIM1965933","token_address":"0xf828e07faa9c58531c0469a927e84ceb1e5e33f2","type":"artist","uuid":"f7c0adac-e636-4846-8e6d-1f725cadf804"}
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  type: MusicAlbum
  date published: 2020-11-06
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  type: MusicAlbum
  date published: 2021-07-07
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2021-09-10
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  type: MusicAlbum
  date published: 2021-10-09
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2024-11-08