Edu Schalk -
type: MusicGroup
genre: indorock
genre: maluku
popularity: 13
followers: 269
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xffe82f2576788071976e6ba2af319b82defbee8f761319773464ded69708dcc9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953803
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953803
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e759c603-5c97-4dd9-92c6-9e5d7b062689.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e759c603-5c97-4dd9-92c6-9e5d7b062689.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e759c603-5c97-4dd9-92c6-9e5d7b062689
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T15:41:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xffe82f2576788071976e6ba2af319b82defbee8f761319773464ded69708dcc9","name":"Edu Schalk -","registered_at":"2026-06-15T04:51:05Z","symbol":"NIM0687505","token_address":"0x930448c294ade737ac71c2931406fc16cc03094b","type":"artist","uuid":"e759c603-5c97-4dd9-92c6-9e5d7b062689"}
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 0xffe82f2576788071976e6ba2af319b82defbee8f761319773464ded69708dcc9. Chain 2 (Bitcoin): anchored in block 953803 (2026-06-15T15:41:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e759c603-5c97-4dd9-92c6-9e5d7b062689.json and https://artists.proofprofile.net/proofs/artist/e759c603-5c97-4dd9-92c6-9e5d7b062689.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T15:41:00Z
  text: {"copyright_id":"0xffe82f2576788071976e6ba2af319b82defbee8f761319773464ded69708dcc9","name":"Edu Schalk -","registered_at":"2026-06-15T04:51:05Z","symbol":"NIM0687505","token_address":"0x930448c294ade737ac71c2931406fc16cc03094b","type":"artist","uuid":"e759c603-5c97-4dd9-92c6-9e5d7b062689"}
album: Lagu-Lagu Kenangan Manis
  type: MusicAlbum
  date published: 1999-01-01