Abysmal Grief
type: MusicGroup
genre: doom metal
genre: gothic metal
genre: sludge metal
popularity: 10
followers: 5358
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4c99710d1d267b9e9b3ee66f0eeb2190d3003fdb6b75add08b83b982542954be
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953907
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953907
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1639ac10-2f48-44ba-97df-7e6f44642216.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1639ac10-2f48-44ba-97df-7e6f44642216.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1639ac10-2f48-44ba-97df-7e6f44642216
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:39:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4c99710d1d267b9e9b3ee66f0eeb2190d3003fdb6b75add08b83b982542954be","name":"Abysmal Grief","registered_at":"2026-06-15T21:16:45Z","symbol":"NIM0834409","token_address":"0x6c792d8c151a275a0629e207dc710f2184696f58","type":"artist","uuid":"1639ac10-2f48-44ba-97df-7e6f44642216"}
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 0x4c99710d1d267b9e9b3ee66f0eeb2190d3003fdb6b75add08b83b982542954be. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1639ac10-2f48-44ba-97df-7e6f44642216.json and https://artists.proofprofile.net/proofs/artist/1639ac10-2f48-44ba-97df-7e6f44642216.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x4c99710d1d267b9e9b3ee66f0eeb2190d3003fdb6b75add08b83b982542954be","name":"Abysmal Grief","registered_at":"2026-06-15T21:16:45Z","symbol":"NIM0834409","token_address":"0x6c792d8c151a275a0629e207dc710f2184696f58","type":"artist","uuid":"1639ac10-2f48-44ba-97df-7e6f44642216"}
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  date published: 2010-04-23
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