Sir Echo
type: MusicGroup
popularity: 5
followers: 834
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc2467e851cd1a3145d18d02d9d7e768cd345aa4a75ea824678240d9341dadf57
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954004
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954004
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32cab9ee-8599-4c37-8f20-63fde6f91a75.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/32cab9ee-8599-4c37-8f20-63fde6f91a75.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/32cab9ee-8599-4c37-8f20-63fde6f91a75
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T21:01:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc2467e851cd1a3145d18d02d9d7e768cd345aa4a75ea824678240d9341dadf57","name":"Sir Echo","registered_at":"2026-06-16T07:11:49Z","symbol":"NIM0976505","token_address":"0xc5f0ec8ed2ad918b27611484f9ef2e7e0a8088d2","type":"artist","uuid":"32cab9ee-8599-4c37-8f20-63fde6f91a75"}
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 0xc2467e851cd1a3145d18d02d9d7e768cd345aa4a75ea824678240d9341dadf57. 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/32cab9ee-8599-4c37-8f20-63fde6f91a75.json and https://artists.proofprofile.net/proofs/artist/32cab9ee-8599-4c37-8f20-63fde6f91a75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xc2467e851cd1a3145d18d02d9d7e768cd345aa4a75ea824678240d9341dadf57","name":"Sir Echo","registered_at":"2026-06-16T07:11:49Z","symbol":"NIM0976505","token_address":"0xc5f0ec8ed2ad918b27611484f9ef2e7e0a8088d2","type":"artist","uuid":"32cab9ee-8599-4c37-8f20-63fde6f91a75"}
album: Obituary / Raven
  type: MusicAlbum
  date published: 2023-01-06
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  type: MusicAlbum
  date published: 2023-01-06
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  type: MusicAlbum
  date published: 2023-04-06
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  type: MusicAlbum
  date published: 2023-10-27
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  type: MusicAlbum
  date published: 2024-02-23
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  type: MusicAlbum
  date published: 2024-06-19
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  type: MusicAlbum
  date published: 2025-11-14