Filter Bear
type: MusicGroup
genre: organic house
genre: progressive house
popularity: 4
followers: 284
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd0ae759442d4ad20b164f9adb542e22318fd85442a8b51fb571d20954145c1d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953896
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953896
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/10b74e9c-a7cc-49aa-a5ae-3d8e578944a7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/10b74e9c-a7cc-49aa-a5ae-3d8e578944a7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/10b74e9c-a7cc-49aa-a5ae-3d8e578944a7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:05:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbd0ae759442d4ad20b164f9adb542e22318fd85442a8b51fb571d20954145c1d","name":"Filter Bear","registered_at":"2026-06-15T19:26:13Z","symbol":"NIM0808059","token_address":"0x2f84996c941cf17bddde956e1ed5abe09e234275","type":"artist","uuid":"10b74e9c-a7cc-49aa-a5ae-3d8e578944a7"}
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 0xbd0ae759442d4ad20b164f9adb542e22318fd85442a8b51fb571d20954145c1d. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10b74e9c-a7cc-49aa-a5ae-3d8e578944a7.json and https://artists.proofprofile.net/proofs/artist/10b74e9c-a7cc-49aa-a5ae-3d8e578944a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:05:56Z
  text: {"copyright_id":"0xbd0ae759442d4ad20b164f9adb542e22318fd85442a8b51fb571d20954145c1d","name":"Filter Bear","registered_at":"2026-06-15T19:26:13Z","symbol":"NIM0808059","token_address":"0x2f84996c941cf17bddde956e1ed5abe09e234275","type":"artist","uuid":"10b74e9c-a7cc-49aa-a5ae-3d8e578944a7"}
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