Leo Blume
type: MusicGroup
popularity: 3
followers: 25
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x538d42242b5ced5067e19ae0a723ae9ea7eced3a97ba1826b560274c7ca732cb
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/659e3a3b-22a8-4a6f-875d-59f96f13d866.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/659e3a3b-22a8-4a6f-875d-59f96f13d866.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/659e3a3b-22a8-4a6f-875d-59f96f13d866
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x538d42242b5ced5067e19ae0a723ae9ea7eced3a97ba1826b560274c7ca732cb","name":"Leo Blume","registered_at":"2026-06-17T01:08:42Z","symbol":"NIM1233443","token_address":"0xb32bbce2f499e082041f2a6a9ecfdb4ba94aa693","type":"artist","uuid":"659e3a3b-22a8-4a6f-875d-59f96f13d866"}
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 0x538d42242b5ced5067e19ae0a723ae9ea7eced3a97ba1826b560274c7ca732cb. 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/659e3a3b-22a8-4a6f-875d-59f96f13d866.json and https://artists.proofprofile.net/proofs/artist/659e3a3b-22a8-4a6f-875d-59f96f13d866.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x538d42242b5ced5067e19ae0a723ae9ea7eced3a97ba1826b560274c7ca732cb","name":"Leo Blume","registered_at":"2026-06-17T01:08:42Z","symbol":"NIM1233443","token_address":"0xb32bbce2f499e082041f2a6a9ecfdb4ba94aa693","type":"artist","uuid":"659e3a3b-22a8-4a6f-875d-59f96f13d866"}
album: Blumenau, Blumenau
  type: MusicAlbum
  date published: 2025-09-01
album: Hino da Bandeira do Brasil (English Version)
  type: MusicAlbum
  date published: 2025-09-07
album: Blumenau Capybaras Jazz Club Collection | Vols. 01-04
  type: MusicAlbum
  date published: 2025-10-12