Walther Alexander
type: MusicGroup
popularity: 2
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9c6bdb4b00d2d287a15ca9ac0f70456d4fc8a3dc310153878f05df9830d395fd
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5511609-faa1-4aec-8244-bc186106e71b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5511609-faa1-4aec-8244-bc186106e71b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c5511609-faa1-4aec-8244-bc186106e71b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9c6bdb4b00d2d287a15ca9ac0f70456d4fc8a3dc310153878f05df9830d395fd","name":"Walther Alexander","registered_at":"2026-06-20T21:14:30Z","symbol":"NIM1715766","token_address":"0x63bb61b72097d3b81bf246e39b93d2b25df7a77b","type":"artist","uuid":"c5511609-faa1-4aec-8244-bc186106e71b"}
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 0x9c6bdb4b00d2d287a15ca9ac0f70456d4fc8a3dc310153878f05df9830d395fd. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5511609-faa1-4aec-8244-bc186106e71b.json and https://artists.proofprofile.net/proofs/artist/c5511609-faa1-4aec-8244-bc186106e71b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0x9c6bdb4b00d2d287a15ca9ac0f70456d4fc8a3dc310153878f05df9830d395fd","name":"Walther Alexander","registered_at":"2026-06-20T21:14:30Z","symbol":"NIM1715766","token_address":"0x63bb61b72097d3b81bf246e39b93d2b25df7a77b","type":"artist","uuid":"c5511609-faa1-4aec-8244-bc186106e71b"}
album: Piano Concerto Op.3 No.3
  type: MusicAlbum
  date published: 2025-04-05
album: Odium Waltz Op.2 No.2
  type: MusicAlbum
  date published: 2025-05-01
album: Ballade Op.32 No.1
  type: MusicAlbum
  date published: 2025-05-05
album: Requiem Pro Pontifice
  type: MusicAlbum
  date published: 2025-05-11
album: 8 Inventions for the Harpsichord
  type: MusicAlbum
  date published: 2025-09-12