Sam Häggblad
type: MusicGroup
genre: synthwave
popularity: 3
followers: 106
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x14ea2bff912289d5abd04ab7b049b6a2cbdb6c563a016982f9d418d0034d977c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d298773-33ae-415b-b3dd-4b261bbc546a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d298773-33ae-415b-b3dd-4b261bbc546a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3d298773-33ae-415b-b3dd-4b261bbc546a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x14ea2bff912289d5abd04ab7b049b6a2cbdb6c563a016982f9d418d0034d977c","name":"Sam Häggblad","registered_at":"2026-06-16T10:52:00Z","symbol":"NIM1029066","token_address":"0x86b99db76ed9b51aabd32d65cfb5f775f11f87cf","type":"artist","uuid":"3d298773-33ae-415b-b3dd-4b261bbc546a"}
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 0x14ea2bff912289d5abd04ab7b049b6a2cbdb6c563a016982f9d418d0034d977c. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d298773-33ae-415b-b3dd-4b261bbc546a.json and https://artists.proofprofile.net/proofs/artist/3d298773-33ae-415b-b3dd-4b261bbc546a.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0x14ea2bff912289d5abd04ab7b049b6a2cbdb6c563a016982f9d418d0034d977c","name":"Sam Häggblad","registered_at":"2026-06-16T10:52:00Z","symbol":"NIM1029066","token_address":"0x86b99db76ed9b51aabd32d65cfb5f775f11f87cf","type":"artist","uuid":"3d298773-33ae-415b-b3dd-4b261bbc546a"}
album: Never Say Never
  type: MusicAlbum
  date published: 2013-10-01
album: Apoptosis
  type: MusicAlbum
  date published: 2018-12-15
album: EarthWorks
  type: MusicAlbum
  date published: 2021-05-12