who's sem
type: MusicGroup
popularity: 14
followers: 924
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0c4d0aed2aaffdd3b14537fbbfdd64a3483fc102fe71c9c3a83077e727443fe1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0822cf4-3762-4ce7-a168-9ad2d71ee293.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0822cf4-3762-4ce7-a168-9ad2d71ee293.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b0822cf4-3762-4ce7-a168-9ad2d71ee293
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0c4d0aed2aaffdd3b14537fbbfdd64a3483fc102fe71c9c3a83077e727443fe1","name":"who's sem","registered_at":"2026-06-14T23:09:02Z","symbol":"NIM0605814","token_address":"0xf55b5cc455bfc84c78b1d9768c08dfb45cf72a37","type":"artist","uuid":"b0822cf4-3762-4ce7-a168-9ad2d71ee293"}
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 0x0c4d0aed2aaffdd3b14537fbbfdd64a3483fc102fe71c9c3a83077e727443fe1. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0822cf4-3762-4ce7-a168-9ad2d71ee293.json and https://artists.proofprofile.net/proofs/artist/b0822cf4-3762-4ce7-a168-9ad2d71ee293.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T07:48:25Z
  text: {"copyright_id":"0x0c4d0aed2aaffdd3b14537fbbfdd64a3483fc102fe71c9c3a83077e727443fe1","name":"who's sem","registered_at":"2026-06-14T23:09:02Z","symbol":"NIM0605814","token_address":"0xf55b5cc455bfc84c78b1d9768c08dfb45cf72a37","type":"artist","uuid":"b0822cf4-3762-4ce7-a168-9ad2d71ee293"}
album: Run
  type: MusicAlbum
  date published: 2022-02-17
album: Run
  type: MusicAlbum
  date published: 2022-02-17
album: Run Amok
  type: MusicAlbum
  date published: 2022-02-24
album: Run Amok
  type: MusicAlbum
  date published: 2022-02-24
album: Blinded
  type: MusicAlbum
  date published: 2022-03-24
album: Blinded
  type: MusicAlbum
  date published: 2022-03-24