Charcoal Sketches
type: MusicGroup
popularity: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9be0ca50132dcdcba4e2fec6a78c337b0c16a03f159a9a81c45ead695bb8374
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953662
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953662
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/565a9d2f-6714-494b-ab29-48188b417543.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/565a9d2f-6714-494b-ab29-48188b417543.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/565a9d2f-6714-494b-ab29-48188b417543
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:28:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf9be0ca50132dcdcba4e2fec6a78c337b0c16a03f159a9a81c45ead695bb8374","name":"Charcoal Sketches","registered_at":"2026-06-14T13:31:34Z","symbol":"NIM0468082","token_address":"0x9b0f3b502c7f3e62df71717a87021c596eef0f0f","type":"artist","uuid":"565a9d2f-6714-494b-ab29-48188b417543"}
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 0xf9be0ca50132dcdcba4e2fec6a78c337b0c16a03f159a9a81c45ead695bb8374. Chain 2 (Bitcoin): anchored in block 953662 (2026-06-14T17:28:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/565a9d2f-6714-494b-ab29-48188b417543.json and https://artists.proofprofile.net/proofs/artist/565a9d2f-6714-494b-ab29-48188b417543.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T17:28:39Z
  text: {"copyright_id":"0xf9be0ca50132dcdcba4e2fec6a78c337b0c16a03f159a9a81c45ead695bb8374","name":"Charcoal Sketches","registered_at":"2026-06-14T13:31:34Z","symbol":"NIM0468082","token_address":"0x9b0f3b502c7f3e62df71717a87021c596eef0f0f","type":"artist","uuid":"565a9d2f-6714-494b-ab29-48188b417543"}