Anna Ihrén
type: MusicGroup
popularity: 5
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb1ca49c04db7534cd3c1f92ff113755d22a1a5d5d86bc6a288aec3c49f8de8e9
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/64e145c7-30f7-420c-a47c-f4cb7d38e6fc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/64e145c7-30f7-420c-a47c-f4cb7d38e6fc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/64e145c7-30f7-420c-a47c-f4cb7d38e6fc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb1ca49c04db7534cd3c1f92ff113755d22a1a5d5d86bc6a288aec3c49f8de8e9","name":"Anna Ihrén","registered_at":"2026-06-17T00:53:39Z","symbol":"NIM1229849","token_address":"0x60d7be4227344df5a40bcc317b7a7d965d8a2317","type":"artist","uuid":"64e145c7-30f7-420c-a47c-f4cb7d38e6fc"}
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 0xb1ca49c04db7534cd3c1f92ff113755d22a1a5d5d86bc6a288aec3c49f8de8e9. 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/64e145c7-30f7-420c-a47c-f4cb7d38e6fc.json and https://artists.proofprofile.net/proofs/artist/64e145c7-30f7-420c-a47c-f4cb7d38e6fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xb1ca49c04db7534cd3c1f92ff113755d22a1a5d5d86bc6a288aec3c49f8de8e9","name":"Anna Ihrén","registered_at":"2026-06-17T00:53:39Z","symbol":"NIM1229849","token_address":"0x60d7be4227344df5a40bcc317b7a7d965d8a2317","type":"artist","uuid":"64e145c7-30f7-420c-a47c-f4cb7d38e6fc"}
album: The Man on the Beach
  type: MusicAlbum
  date published: 2017
album: Mord in den Schären (ungekürzt)
  type: MusicAlbum
  date published: 2019-07-09
album: Tod eines Eisfischers (ungekürzt)
  type: MusicAlbum
  date published: 2020-10-27
album: Ein Toter auf Smögen (ungekürzt)
  type: MusicAlbum
  date published: 2021-05-25
album: The Ice Fisher
  type: MusicAlbum
  date published: 2022-07-14
album: The Herring King
  type: MusicAlbum
  date published: 2023-05-18
album: The Herring King
  type: MusicAlbum
  date published: 2023-05-18
album: The Lighthouse Keeper
  type: MusicAlbum
  date published: 2025-02-25