Sandra Albertus
type: MusicGroup
popularity: 2
followers: 12
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x418c7dcfa77f50c1a25f8d0ee4dde5ddd6df2445573f2dd6049a498de4216bd5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe68790a-7269-4d70-9bdf-3bc131694ab7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe68790a-7269-4d70-9bdf-3bc131694ab7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe68790a-7269-4d70-9bdf-3bc131694ab7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x418c7dcfa77f50c1a25f8d0ee4dde5ddd6df2445573f2dd6049a498de4216bd5","name":"Sandra Albertus","registered_at":"2026-06-21T17:59:49Z","symbol":"NIM1994523","token_address":"0x82e4ef07f3f347d56f5bfd023dd92fd4ace94dfd","type":"artist","uuid":"fe68790a-7269-4d70-9bdf-3bc131694ab7"}
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 0x418c7dcfa77f50c1a25f8d0ee4dde5ddd6df2445573f2dd6049a498de4216bd5. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe68790a-7269-4d70-9bdf-3bc131694ab7.json and https://artists.proofprofile.net/proofs/artist/fe68790a-7269-4d70-9bdf-3bc131694ab7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x418c7dcfa77f50c1a25f8d0ee4dde5ddd6df2445573f2dd6049a498de4216bd5","name":"Sandra Albertus","registered_at":"2026-06-21T17:59:49Z","symbol":"NIM1994523","token_address":"0x82e4ef07f3f347d56f5bfd023dd92fd4ace94dfd","type":"artist","uuid":"fe68790a-7269-4d70-9bdf-3bc131694ab7"}
album: Vackra pianomelodier 1 (Beautiful piano music 1)
  type: MusicAlbum
  date published: 2020-10-22
album: Vackra pianomelodier 2
  type: MusicAlbum
  date published: 2020-11-19
album: Bluebell (Beautiful piano pieces)
  type: MusicAlbum
  date published: 2021-03-20
album: Ray of hope
  type: MusicAlbum
  date published: 2022-02-03
album: Skärtorsdag - Påskkärringsång
  type: MusicAlbum
  date published: 2022-02-25
album: Himmel
  type: MusicAlbum
  date published: 2023-09-11