After Tommy
type: MusicGroup
popularity: 3
followers: 499
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x81e8a7dff9118ea20614b71dd6990744d4a917df59ce26adb6ce545089493adb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8a29f81-9073-4f3a-9d89-7a8724a878e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8a29f81-9073-4f3a-9d89-7a8724a878e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8a29f81-9073-4f3a-9d89-7a8724a878e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x81e8a7dff9118ea20614b71dd6990744d4a917df59ce26adb6ce545089493adb","name":"After Tommy","registered_at":"2026-06-21T15:55:06Z","symbol":"NIM1965837","token_address":"0x8d90b4494c5bb641864955fec5381678f16378c7","type":"artist","uuid":"f8a29f81-9073-4f3a-9d89-7a8724a878e3"}
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 0x81e8a7dff9118ea20614b71dd6990744d4a917df59ce26adb6ce545089493adb. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8a29f81-9073-4f3a-9d89-7a8724a878e3.json and https://artists.proofprofile.net/proofs/artist/f8a29f81-9073-4f3a-9d89-7a8724a878e3.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x81e8a7dff9118ea20614b71dd6990744d4a917df59ce26adb6ce545089493adb","name":"After Tommy","registered_at":"2026-06-21T15:55:06Z","symbol":"NIM1965837","token_address":"0x8d90b4494c5bb641864955fec5381678f16378c7","type":"artist","uuid":"f8a29f81-9073-4f3a-9d89-7a8724a878e3"}
album: Despedidas (de mentira)
  type: MusicAlbum
  date published: 2021-11-12
album: De resaca emocional
  type: MusicAlbum
  date published: 2021-12-17
album: fue lo mejor
  type: MusicAlbum
  date published: 2023-03-05
album: el verano pasará
  type: MusicAlbum
  date published: 2023-03-15
album: qué movida presenta: After Tommy (en directo)
  type: MusicAlbum
  date published: 2023-04-07
album: el verano pasará
  type: MusicAlbum
  date published: 2023-04-21