Selma Key
type: MusicGroup
popularity: 24
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb55c4c525a30e4b38fe702b7cbad0fd687f8a295d9fbe3e9e491c81ca827c6c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5ee1d11a-aa0e-4aaa-8632-953a0e893163.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5ee1d11a-aa0e-4aaa-8632-953a0e893163.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5ee1d11a-aa0e-4aaa-8632-953a0e893163
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb55c4c525a30e4b38fe702b7cbad0fd687f8a295d9fbe3e9e491c81ca827c6c4","name":"Selma Key","registered_at":"2026-06-11T22:23:59Z","symbol":"NIM0123323","token_address":"0x94164dcea9f1315f51377e99be680fb830f3fea2","type":"artist","uuid":"5ee1d11a-aa0e-4aaa-8632-953a0e893163"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55c4c525a30e4b38fe702b7cbad0fd687f8a295d9fbe3e9e491c81ca827c6c4. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ee1d11a-aa0e-4aaa-8632-953a0e893163.json and https://artists.proofprofile.net/proofs/artist/5ee1d11a-aa0e-4aaa-8632-953a0e893163.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xb55c4c525a30e4b38fe702b7cbad0fd687f8a295d9fbe3e9e491c81ca827c6c4","name":"Selma Key","registered_at":"2026-06-11T22:23:59Z","symbol":"NIM0123323","token_address":"0x94164dcea9f1315f51377e99be680fb830f3fea2","type":"artist","uuid":"5ee1d11a-aa0e-4aaa-8632-953a0e893163"}
album: Calmness
  type: MusicAlbum
  date published: 2022-05-11
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  type: MusicAlbum
  date published: 2022-09-02
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  type: MusicAlbum
  date published: 2022-12-03
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  type: MusicAlbum
  date published: 2023-01-29
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  type: MusicAlbum
  date published: 2023-03-09
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  type: MusicAlbum
  date published: 2023-05-17
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  type: MusicAlbum
  date published: 2023-06-26
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  type: MusicAlbum
  date published: 2023-10-25
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  type: MusicAlbum
  date published: 2023-12-28
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  type: MusicAlbum
  date published: 2024-01-26
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  type: MusicAlbum
  date published: 2024-04-09
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  type: MusicAlbum
  date published: 2025-02-07