Isak Wanström
type: MusicGroup
genre: swedish pop
popularity: 9
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1fb77a7bc67c44aae6f0a3d8e41f7a74ddf2eb14d7cf4f33cb54419f4c7f4fc9
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/6699cce9-1458-44bf-a6ea-63131236479a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6699cce9-1458-44bf-a6ea-63131236479a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6699cce9-1458-44bf-a6ea-63131236479a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1fb77a7bc67c44aae6f0a3d8e41f7a74ddf2eb14d7cf4f33cb54419f4c7f4fc9","name":"Isak Wanström","registered_at":"2026-06-17T01:25:50Z","symbol":"NIM1237536","token_address":"0xf31352ec9745310c773b192f90d0045edd47a1ae","type":"artist","uuid":"6699cce9-1458-44bf-a6ea-63131236479a"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fb77a7bc67c44aae6f0a3d8e41f7a74ddf2eb14d7cf4f33cb54419f4c7f4fc9. 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/6699cce9-1458-44bf-a6ea-63131236479a.json and https://artists.proofprofile.net/proofs/artist/6699cce9-1458-44bf-a6ea-63131236479a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1fb77a7bc67c44aae6f0a3d8e41f7a74ddf2eb14d7cf4f33cb54419f4c7f4fc9","name":"Isak Wanström","registered_at":"2026-06-17T01:25:50Z","symbol":"NIM1237536","token_address":"0xf31352ec9745310c773b192f90d0045edd47a1ae","type":"artist","uuid":"6699cce9-1458-44bf-a6ea-63131236479a"}
album: Gatan i Stockholm
  type: MusicAlbum
  date published: 2025-09-05