Hannah Sandoz
type: MusicGroup
popularity: 2
followers: 434
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe8e5031e37ab54801f7a27bb4a4c5f25c8971a90257556e2fdd2afc50328b27
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9507f170-530d-4ad5-ad6d-93769d032181.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9507f170-530d-4ad5-ad6d-93769d032181.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9507f170-530d-4ad5-ad6d-93769d032181
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe8e5031e37ab54801f7a27bb4a4c5f25c8971a90257556e2fdd2afc50328b27","name":"Hannah Sandoz","registered_at":"2026-06-17T17:41:34Z","symbol":"NIM1470252","token_address":"0xa133dd6218a74d9b5a51feadea516b933e8226a1","type":"artist","uuid":"9507f170-530d-4ad5-ad6d-93769d032181"}
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 0xfe8e5031e37ab54801f7a27bb4a4c5f25c8971a90257556e2fdd2afc50328b27. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9507f170-530d-4ad5-ad6d-93769d032181.json and https://artists.proofprofile.net/proofs/artist/9507f170-530d-4ad5-ad6d-93769d032181.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xfe8e5031e37ab54801f7a27bb4a4c5f25c8971a90257556e2fdd2afc50328b27","name":"Hannah Sandoz","registered_at":"2026-06-17T17:41:34Z","symbol":"NIM1470252","token_address":"0xa133dd6218a74d9b5a51feadea516b933e8226a1","type":"artist","uuid":"9507f170-530d-4ad5-ad6d-93769d032181"}
album: Less of a Reflection, More of a Shadow
  type: MusicAlbum
  date published: 2019-02-28
album: The Year of Alone
  type: MusicAlbum
  date published: 2021-01-01
album: To Love and Loss!
  type: MusicAlbum
  date published: 2021-08-15
album: Hole
  type: MusicAlbum
  date published: 2023-01-01
album: Leaving the party early
  type: MusicAlbum
  date published: 2023-03-30
album: summer song
  type: MusicAlbum
  date published: 2023-11-01
album: O glory
  type: MusicAlbum
  date published: 2024-02-14
album: moss unfurling
  type: MusicAlbum
  date published: 2024-05-31
album: Held and Holding
  type: MusicAlbum
  date published: 2024-09-30
album: vespers
  type: MusicAlbum
  date published: 2025-02-05
album: MF / HS
  type: MusicAlbum
  date published: 2025-09-30