SPF 50
type: MusicGroup
popularity: 2
followers: 364
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeca9da1b5a2ea500de1c07c06b4b68be37f359c17fba3c6250f6790d4a478429
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5cd9cc71-3ca4-43f4-a693-a7b3238e8258.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5cd9cc71-3ca4-43f4-a693-a7b3238e8258.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5cd9cc71-3ca4-43f4-a693-a7b3238e8258
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeca9da1b5a2ea500de1c07c06b4b68be37f359c17fba3c6250f6790d4a478429","name":"SPF 50","registered_at":"2026-06-16T22:17:50Z","symbol":"NIM1192690","token_address":"0xd3554b86a5784bc47e6ca3466a12a9ea9c1fbe1e","type":"artist","uuid":"5cd9cc71-3ca4-43f4-a693-a7b3238e8258"}
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 0xeca9da1b5a2ea500de1c07c06b4b68be37f359c17fba3c6250f6790d4a478429. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5cd9cc71-3ca4-43f4-a693-a7b3238e8258.json and https://artists.proofprofile.net/proofs/artist/5cd9cc71-3ca4-43f4-a693-a7b3238e8258.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xeca9da1b5a2ea500de1c07c06b4b68be37f359c17fba3c6250f6790d4a478429","name":"SPF 50","registered_at":"2026-06-16T22:17:50Z","symbol":"NIM1192690","token_address":"0xd3554b86a5784bc47e6ca3466a12a9ea9c1fbe1e","type":"artist","uuid":"5cd9cc71-3ca4-43f4-a693-a7b3238e8258"}
album: Sumimasen
  type: MusicAlbum
  date published: 2020-04-23
album: Sumimasen
  type: MusicAlbum
  date published: 2020-05-01
album: Secret Technology
  type: MusicAlbum
  date published: 2022-09-16
album: Social Life
  type: MusicAlbum
  date published: 2023-03-17
album: Social Life
  type: MusicAlbum
  date published: 2023-03-17
album: Social Life Remixed
  type: MusicAlbum
  date published: 2023-11-03
album: Terrarium Trek
  type: MusicAlbum
  date published: 2024-08-13
album: The Rush
  type: MusicAlbum
  date published: 2025-05-30
album: The Rush
  type: MusicAlbum
  date published: 2025-07-04