Blackdrum Sessions S2
type: MusicGroup
popularity: 2
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c70c2a1f7fd312141e62565db32fd9e7457e48f18d1b91c4d97c2d9fe529d17
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77899640-2176-42a1-97b7-dfadb964fa75.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/77899640-2176-42a1-97b7-dfadb964fa75.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/77899640-2176-42a1-97b7-dfadb964fa75
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c70c2a1f7fd312141e62565db32fd9e7457e48f18d1b91c4d97c2d9fe529d17","name":"Blackdrum Sessions S2","registered_at":"2026-06-17T07:14:19Z","symbol":"NIM1320701","token_address":"0x3fad2fd9ba493720006bd916f63dd32fca2f4a1e","type":"artist","uuid":"77899640-2176-42a1-97b7-dfadb964fa75"}
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 0x4c70c2a1f7fd312141e62565db32fd9e7457e48f18d1b91c4d97c2d9fe529d17. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/77899640-2176-42a1-97b7-dfadb964fa75.json and https://artists.proofprofile.net/proofs/artist/77899640-2176-42a1-97b7-dfadb964fa75.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0x4c70c2a1f7fd312141e62565db32fd9e7457e48f18d1b91c4d97c2d9fe529d17","name":"Blackdrum Sessions S2","registered_at":"2026-06-17T07:14:19Z","symbol":"NIM1320701","token_address":"0x3fad2fd9ba493720006bd916f63dd32fca2f4a1e","type":"artist","uuid":"77899640-2176-42a1-97b7-dfadb964fa75"}
album: Blackdrum Sessions S2
  type: MusicAlbum
  date published: 2023-03-15
album: Blackdrum Sessions
  type: MusicAlbum
  date published: 2023-03-17
album: Let Them Say
  type: MusicAlbum
  date published: 2024-10-15