Sebastian Römer
type: MusicGroup
popularity: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7d3b15da82544ecf0dbf0fbaf0bf8de5a1ee1ea555f7e4e15ee25f74c3aabc02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a1cd1a0b-ed3e-423a-bb44-1d44343d4d2c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a1cd1a0b-ed3e-423a-bb44-1d44343d4d2c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a1cd1a0b-ed3e-423a-bb44-1d44343d4d2c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7d3b15da82544ecf0dbf0fbaf0bf8de5a1ee1ea555f7e4e15ee25f74c3aabc02","name":"Sebastian Römer","registered_at":"2026-06-14T21:34:16Z","symbol":"NIM0583191","token_address":"0x8d9e3d65cd86a064291333ff8f293e6f8f1d9424","type":"artist","uuid":"a1cd1a0b-ed3e-423a-bb44-1d44343d4d2c"}
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 0x7d3b15da82544ecf0dbf0fbaf0bf8de5a1ee1ea555f7e4e15ee25f74c3aabc02. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1cd1a0b-ed3e-423a-bb44-1d44343d4d2c.json and https://artists.proofprofile.net/proofs/artist/a1cd1a0b-ed3e-423a-bb44-1d44343d4d2c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0x7d3b15da82544ecf0dbf0fbaf0bf8de5a1ee1ea555f7e4e15ee25f74c3aabc02","name":"Sebastian Römer","registered_at":"2026-06-14T21:34:16Z","symbol":"NIM0583191","token_address":"0x8d9e3d65cd86a064291333ff8f293e6f8f1d9424","type":"artist","uuid":"a1cd1a0b-ed3e-423a-bb44-1d44343d4d2c"}