Blue Weaver
type: MusicGroup
description: Derek John "Blue" Weaver (born 11 March 1947) is a Welsh rock keyboardist, session musician, songwriter and record producer. Career Weaver's career as a musician began as a co-founding member of 196
popularity: 2
followers: 44
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4092ccfc323d9a28139feb9f9ec4382bd2328115d19f57acdb5323045b292549
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eda0ae11-5791-4e93-8be7-72924b599535.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eda0ae11-5791-4e93-8be7-72924b599535.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eda0ae11-5791-4e93-8be7-72924b599535
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4092ccfc323d9a28139feb9f9ec4382bd2328115d19f57acdb5323045b292549","name":"Blue Weaver","registered_at":"2026-06-21T11:50:46Z","symbol":"NIM1915305","token_address":"0x415a8ff5482186628617561e34bfc2a9e590c1d4","type":"artist","uuid":"eda0ae11-5791-4e93-8be7-72924b599535"}
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 0x4092ccfc323d9a28139feb9f9ec4382bd2328115d19f57acdb5323045b292549. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eda0ae11-5791-4e93-8be7-72924b599535.json and https://artists.proofprofile.net/proofs/artist/eda0ae11-5791-4e93-8be7-72924b599535.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x4092ccfc323d9a28139feb9f9ec4382bd2328115d19f57acdb5323045b292549","name":"Blue Weaver","registered_at":"2026-06-21T11:50:46Z","symbol":"NIM1915305","token_address":"0x415a8ff5482186628617561e34bfc2a9e590c1d4","type":"artist","uuid":"eda0ae11-5791-4e93-8be7-72924b599535"}