Ephrem B
type: MusicGroup
popularity: 2
followers: 453
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1757bca2a0062b7d7583e63ea94825e5d4732b7ea6a17bcf5dc20bee93688732
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/622292c4-6103-4839-a5b0-e5799e12f27e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/622292c4-6103-4839-a5b0-e5799e12f27e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/622292c4-6103-4839-a5b0-e5799e12f27e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1757bca2a0062b7d7583e63ea94825e5d4732b7ea6a17bcf5dc20bee93688732","name":"Ephrem B","registered_at":"2026-06-16T23:52:48Z","symbol":"NIM1215341","token_address":"0x9d5d08df5534a4321c7131430ea1301e75a83ebf","type":"artist","uuid":"622292c4-6103-4839-a5b0-e5799e12f27e"}
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 0x1757bca2a0062b7d7583e63ea94825e5d4732b7ea6a17bcf5dc20bee93688732. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/622292c4-6103-4839-a5b0-e5799e12f27e.json and https://artists.proofprofile.net/proofs/artist/622292c4-6103-4839-a5b0-e5799e12f27e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1757bca2a0062b7d7583e63ea94825e5d4732b7ea6a17bcf5dc20bee93688732","name":"Ephrem B","registered_at":"2026-06-16T23:52:48Z","symbol":"NIM1215341","token_address":"0x9d5d08df5534a4321c7131430ea1301e75a83ebf","type":"artist","uuid":"622292c4-6103-4839-a5b0-e5799e12f27e"}
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-02-06
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  type: MusicAlbum
  date published: 2025-05-15
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  type: MusicAlbum
  date published: 2025-06-13
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  type: MusicAlbum
  date published: 2025-08-08
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  type: MusicAlbum
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