Alexander Engström
type: MusicGroup
popularity: 3
followers: 615
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a7faea3dd500fd79ff718fdc990627302ebfd99c1120e6794b08fbf2d6c6529
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953882
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953882
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ab2625d-01e3-440e-84b1-68dc1f42ebcc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ab2625d-01e3-440e-84b1-68dc1f42ebcc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0ab2625d-01e3-440e-84b1-68dc1f42ebcc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T03:13:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3a7faea3dd500fd79ff718fdc990627302ebfd99c1120e6794b08fbf2d6c6529","name":"Alexander Engström","registered_at":"2026-06-15T17:14:00Z","symbol":"NIM0776513","token_address":"0x55d7d8822ebbecb6c65024fe28587109d563aed5","type":"artist","uuid":"0ab2625d-01e3-440e-84b1-68dc1f42ebcc"}
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 0x3a7faea3dd500fd79ff718fdc990627302ebfd99c1120e6794b08fbf2d6c6529. Chain 2 (Bitcoin): anchored in block 953882 (2026-06-16T03:13:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ab2625d-01e3-440e-84b1-68dc1f42ebcc.json and https://artists.proofprofile.net/proofs/artist/0ab2625d-01e3-440e-84b1-68dc1f42ebcc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T03:13:34Z
  text: {"copyright_id":"0x3a7faea3dd500fd79ff718fdc990627302ebfd99c1120e6794b08fbf2d6c6529","name":"Alexander Engström","registered_at":"2026-06-15T17:14:00Z","symbol":"NIM0776513","token_address":"0x55d7d8822ebbecb6c65024fe28587109d563aed5","type":"artist","uuid":"0ab2625d-01e3-440e-84b1-68dc1f42ebcc"}
album: The Lake
  type: MusicAlbum
  date published: 2017-03-08
album: Close to You
  type: MusicAlbum
  date published: 2017-05-03
album: Never Look My Way
  type: MusicAlbum
  date published: 2017-09-01
album: Where Is the Sunshine
  type: MusicAlbum
  date published: 2018-02-07
album: Sommarhälsning
  type: MusicAlbum
  date published: 2018-06-04
album: Part of Me
  type: MusicAlbum
  date published: 2018-11-01