ELVA
type: MusicGroup
description: Elva may refer to: Places Elva, Manitoba, Canada, an unincorporated community Elva, Estonia, a town Elva Parish, a municipality in Estonia Elva (river), a river in Estonia Elva, Piedmont, Italy
popularity: 5
followers: 162
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc7d9cf55dc0483a0e5eef9e8a40b92df585d7c0bed936823455565648a036a2b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b894ced8-b1e6-45a4-a65a-9ffe997084db.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b894ced8-b1e6-45a4-a65a-9ffe997084db.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b894ced8-b1e6-45a4-a65a-9ffe997084db
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
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 0xc7d9cf55dc0483a0e5eef9e8a40b92df585d7c0bed936823455565648a036a2b. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b894ced8-b1e6-45a4-a65a-9ffe997084db.json and https://artists.proofprofile.net/proofs/artist/b894ced8-b1e6-45a4-a65a-9ffe997084db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
album: RE: Fanfare (TYPE-B)
  type: MusicAlbum
  date published: 2024-03-26
album: RE: Fanfare (TYPE-A)
  type: MusicAlbum
  date published: 2024-03-26
album: Summer birthday
  type: MusicAlbum
  date published: 2021-04-13