Negative Self
type: MusicGroup
genre: speed metal
genre: thrash metal
popularity: 5
followers: 1394
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x20d52cd5530f0cfd3d23625e05b0d00879d0a446d467541689550d9ec4998769
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc409880-9b67-4c39-b291-d62b0710e21c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc409880-9b67-4c39-b291-d62b0710e21c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fc409880-9b67-4c39-b291-d62b0710e21c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x20d52cd5530f0cfd3d23625e05b0d00879d0a446d467541689550d9ec4998769","name":"Negative Self","registered_at":"2026-06-21T17:34:01Z","symbol":"NIM1988947","token_address":"0xce6f7a5a044013284f396bdbf3d0c9696a3f733d","type":"artist","uuid":"fc409880-9b67-4c39-b291-d62b0710e21c"}
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 0x20d52cd5530f0cfd3d23625e05b0d00879d0a446d467541689550d9ec4998769. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc409880-9b67-4c39-b291-d62b0710e21c.json and https://artists.proofprofile.net/proofs/artist/fc409880-9b67-4c39-b291-d62b0710e21c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x20d52cd5530f0cfd3d23625e05b0d00879d0a446d467541689550d9ec4998769","name":"Negative Self","registered_at":"2026-06-21T17:34:01Z","symbol":"NIM1988947","token_address":"0xce6f7a5a044013284f396bdbf3d0c9696a3f733d","type":"artist","uuid":"fc409880-9b67-4c39-b291-d62b0710e21c"}
album: Negative Self
  type: MusicAlbum
  date published: 2015-03-13
album: Underneath the Wave
  type: MusicAlbum
  date published: 2018-02-02
album: Answers
  type: MusicAlbum
  date published: 2018-02-15
album: Control the Fear
  type: MusicAlbum
  date published: 2018-03-16