Block9
type: MusicGroup
popularity: 2
followers: 42
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfbbe2508dc0d0269de1a0d7cb5f51aa5c47b7d0a71a9e7b4084ab3ff680a5476
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c98e50c3-3a79-468a-b7a9-6e3ca86567a0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c98e50c3-3a79-468a-b7a9-6e3ca86567a0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c98e50c3-3a79-468a-b7a9-6e3ca86567a0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
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 0xfbbe2508dc0d0269de1a0d7cb5f51aa5c47b7d0a71a9e7b4084ab3ff680a5476. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c98e50c3-3a79-468a-b7a9-6e3ca86567a0.json and https://artists.proofprofile.net/proofs/artist/c98e50c3-3a79-468a-b7a9-6e3ca86567a0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
album: Alice
  type: MusicAlbum
  date published: 2023-06-06
album: Deixa-me fazer-te sorrir
  type: MusicAlbum
  date published: 2024-05-03
album: Pesca nas Estrelas
  type: MusicAlbum
  date published: 2024-06-14
album: Sem Ti
  type: MusicAlbum
  date published: 2024-08-30
album: Remoto
  type: MusicAlbum
  date published: 2025-05-09
album: Toca
  type: MusicAlbum
  date published: 2025-08-23