Blackened Skyline
type: MusicGroup
popularity: 3
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c0c0177d1a6f33d30b7d7a359aec9cff2e1ef1988425778e9dab8c3b51b453e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a56d4faa-7190-47e3-b067-3faaec8f2661.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a56d4faa-7190-47e3-b067-3faaec8f2661.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a56d4faa-7190-47e3-b067-3faaec8f2661
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0c0c0177d1a6f33d30b7d7a359aec9cff2e1ef1988425778e9dab8c3b51b453e","name":"Blackened Skyline","registered_at":"2026-06-20T07:29:06Z","symbol":"NIM1553572","token_address":"0xf00b2fb36a077691571b15aa9457e2bd8b845b85","type":"artist","uuid":"a56d4faa-7190-47e3-b067-3faaec8f2661"}
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 0x0c0c0177d1a6f33d30b7d7a359aec9cff2e1ef1988425778e9dab8c3b51b453e. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a56d4faa-7190-47e3-b067-3faaec8f2661.json and https://artists.proofprofile.net/proofs/artist/a56d4faa-7190-47e3-b067-3faaec8f2661.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x0c0c0177d1a6f33d30b7d7a359aec9cff2e1ef1988425778e9dab8c3b51b453e","name":"Blackened Skyline","registered_at":"2026-06-20T07:29:06Z","symbol":"NIM1553572","token_address":"0xf00b2fb36a077691571b15aa9457e2bd8b845b85","type":"artist","uuid":"a56d4faa-7190-47e3-b067-3faaec8f2661"}
album: The Tempest Within
  type: MusicAlbum
  date published: 2025-02-08