Valse Triste
type: MusicGroup
genre: grindcore
genre: hardcore punk
description: (literal English translation: Sad Waltz), Op. 44/1, is a short orchestral work by the Finnish composer Jean Sibelius. It was originally part of the incidental music he composed for his brother-in-la
popularity: 2
followers: 411
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc3606fd5f43b33c6a73bcd939c578a1426848c1f02e2ff2fd7acdd575ec8191b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5451576-1120-4471-a684-64b75a4403f1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a5451576-1120-4471-a684-64b75a4403f1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a5451576-1120-4471-a684-64b75a4403f1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc3606fd5f43b33c6a73bcd939c578a1426848c1f02e2ff2fd7acdd575ec8191b","name":"Valse Triste","registered_at":"2026-06-20T07:25:54Z","symbol":"NIM1552831","token_address":"0x7f1c724d18194ef652a4998a5c40730a8f80f2b6","type":"artist","uuid":"a5451576-1120-4471-a684-64b75a4403f1"}
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 0xc3606fd5f43b33c6a73bcd939c578a1426848c1f02e2ff2fd7acdd575ec8191b. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a5451576-1120-4471-a684-64b75a4403f1.json and https://artists.proofprofile.net/proofs/artist/a5451576-1120-4471-a684-64b75a4403f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xc3606fd5f43b33c6a73bcd939c578a1426848c1f02e2ff2fd7acdd575ec8191b","name":"Valse Triste","registered_at":"2026-06-20T07:25:54Z","symbol":"NIM1552831","token_address":"0x7f1c724d18194ef652a4998a5c40730a8f80f2b6","type":"artist","uuid":"a5451576-1120-4471-a684-64b75a4403f1"}
album: Kompilaatio
  type: MusicAlbum
  date published: 2002