Ann-Maree Keefe
type: MusicGroup
popularity: 3
followers: 104
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2478be289b9e01be0cc6a31fd9e814b86f6e4b5a4172a9ac45c13b56c9bfbf1b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/998c0a55-2db0-4013-99f9-542371727d5f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/998c0a55-2db0-4013-99f9-542371727d5f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/998c0a55-2db0-4013-99f9-542371727d5f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2478be289b9e01be0cc6a31fd9e814b86f6e4b5a4172a9ac45c13b56c9bfbf1b","name":"Ann-Maree Keefe","registered_at":"2026-06-17T19:16:55Z","symbol":"NIM1492999","token_address":"0x7158afeba679164de1c5b7f294722714506a2157","type":"artist","uuid":"998c0a55-2db0-4013-99f9-542371727d5f"}
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 0x2478be289b9e01be0cc6a31fd9e814b86f6e4b5a4172a9ac45c13b56c9bfbf1b. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/998c0a55-2db0-4013-99f9-542371727d5f.json and https://artists.proofprofile.net/proofs/artist/998c0a55-2db0-4013-99f9-542371727d5f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0x2478be289b9e01be0cc6a31fd9e814b86f6e4b5a4172a9ac45c13b56c9bfbf1b","name":"Ann-Maree Keefe","registered_at":"2026-06-17T19:16:55Z","symbol":"NIM1492999","token_address":"0x7158afeba679164de1c5b7f294722714506a2157","type":"artist","uuid":"998c0a55-2db0-4013-99f9-542371727d5f"}
album: Time of the Day
  type: MusicAlbum
  date published: 2011-05-17
album: Cryptology
  type: MusicAlbum
  date published: 2012-12-09
album: Reflection
  type: MusicAlbum
  date published: 2014-08-08