Petrossi
type: MusicGroup
genre: lounge
popularity: 28
followers: 260
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x92b6eab9b48c227579c465e4c3979b45d5a34fc097d5b22e39735f6973c93e5e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a694b616-f9de-4d41-a5dd-1913b4a3dfaf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a694b616-f9de-4d41-a5dd-1913b4a3dfaf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a694b616-f9de-4d41-a5dd-1913b4a3dfaf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 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 0x92b6eab9b48c227579c465e4c3979b45d5a34fc097d5b22e39735f6973c93e5e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a694b616-f9de-4d41-a5dd-1913b4a3dfaf.json and https://artists.proofprofile.net/proofs/artist/a694b616-f9de-4d41-a5dd-1913b4a3dfaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Summer flower
  type: MusicAlbum
  date published: 2022-07-22
album: To Sea The Sun
  type: MusicAlbum
  date published: 2022-08-19
album: Sphere
  type: MusicAlbum
  date published: 2022-09-23
album: Fall
  type: MusicAlbum
  date published: 2022-10-28
album: talking to the stars
  type: MusicAlbum
  date published: 2023-01-06
album: far from the moon
  type: MusicAlbum
  date published: 2023-02-17