Joanne Hammil
type: MusicGroup
popularity: 6
followers: 122
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcdce1c8856cfe4a97f3ea03b4b137d64388caa12aad62d4d2219d0903b9c237f
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/f742738b-53ca-4d59-8c15-ed7c62b2210f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f742738b-53ca-4d59-8c15-ed7c62b2210f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f742738b-53ca-4d59-8c15-ed7c62b2210f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcdce1c8856cfe4a97f3ea03b4b137d64388caa12aad62d4d2219d0903b9c237f","name":"Joanne Hammil","registered_at":"2026-06-21T15:36:39Z","symbol":"NIM1961263","token_address":"0xbb1f8d3a8e36942e46f7ea4346b3b538f2820c1c","type":"artist","uuid":"f742738b-53ca-4d59-8c15-ed7c62b2210f"}
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 0xcdce1c8856cfe4a97f3ea03b4b137d64388caa12aad62d4d2219d0903b9c237f. 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/f742738b-53ca-4d59-8c15-ed7c62b2210f.json and https://artists.proofprofile.net/proofs/artist/f742738b-53ca-4d59-8c15-ed7c62b2210f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xcdce1c8856cfe4a97f3ea03b4b137d64388caa12aad62d4d2219d0903b9c237f","name":"Joanne Hammil","registered_at":"2026-06-21T15:36:39Z","symbol":"NIM1961263","token_address":"0xbb1f8d3a8e36942e46f7ea4346b3b538f2820c1c","type":"artist","uuid":"f742738b-53ca-4d59-8c15-ed7c62b2210f"}
album: Pizza Boogie
  type: MusicAlbum
  date published: 1989-01-01
album: The World's Gonna Listen!
  type: MusicAlbum
  date published: 1994
album: Joanne Hammil Rounds & Partner Songs Vol 2
  type: MusicAlbum
  date published: 2003
album: Rounds & Partner Songs Volume 1
  type: MusicAlbum
  date published: 2003
album: Don't Give Me a Label
  type: MusicAlbum
  date published: 2016-07-20
album: Rounds & Partner Songs, Vol. 3: Musical Prisms
  type: MusicAlbum
  date published: 2021-08-01
album: Rounds & Partner Songs, Vol. 4: Follow the Sun
  type: MusicAlbum
  date published: 2021-08-01