Hai & Topsy
type: MusicGroup
genre: swedish ballads
popularity: 2
followers: 77
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4bc6dc5ab4c58b192e5f47a9534fc2ca38c0373cba75338ced71df4a7aeaef35
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953867
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953867
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/054cfa52-7e2f-4c93-8c32-6b01f83ea5ae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/054cfa52-7e2f-4c93-8c32-6b01f83ea5ae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/054cfa52-7e2f-4c93-8c32-6b01f83ea5ae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T01:09:47Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4bc6dc5ab4c58b192e5f47a9534fc2ca38c0373cba75338ced71df4a7aeaef35","name":"Hai & Topsy","registered_at":"2026-06-15T15:28:11Z","symbol":"NIM0751249","token_address":"0xd003fed2db926886eec0516f607a09c8ee758f42","type":"artist","uuid":"054cfa52-7e2f-4c93-8c32-6b01f83ea5ae"}
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 0x4bc6dc5ab4c58b192e5f47a9534fc2ca38c0373cba75338ced71df4a7aeaef35. Chain 2 (Bitcoin): anchored in block 953867 (2026-06-16T01:09:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/054cfa52-7e2f-4c93-8c32-6b01f83ea5ae.json and https://artists.proofprofile.net/proofs/artist/054cfa52-7e2f-4c93-8c32-6b01f83ea5ae.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T01:09:47Z
  text: {"copyright_id":"0x4bc6dc5ab4c58b192e5f47a9534fc2ca38c0373cba75338ced71df4a7aeaef35","name":"Hai & Topsy","registered_at":"2026-06-15T15:28:11Z","symbol":"NIM0751249","token_address":"0xd003fed2db926886eec0516f607a09c8ee758f42","type":"artist","uuid":"054cfa52-7e2f-4c93-8c32-6b01f83ea5ae"}
album: Jag sjunger ej om kungar, jag sjunger ej om mord...
  type: MusicAlbum
  date published: 1974-07-01
album: Uti det ruckel
  type: MusicAlbum
  date published: 1975-07-01
album: Spätlese
  type: MusicAlbum
  date published: 2000