Signum A.D.
type: MusicGroup
genre: alternative metal
popularity: 3
followers: 2708
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbb5ef9efd1e6917bda9e657563fb1b03b32f7471be441febc5b44b7872424b62
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/a70ca067-2cdc-45c7-941f-0bb761f482f5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a70ca067-2cdc-45c7-941f-0bb761f482f5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a70ca067-2cdc-45c7-941f-0bb761f482f5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbb5ef9efd1e6917bda9e657563fb1b03b32f7471be441febc5b44b7872424b62","name":"Signum A.D.","registered_at":"2026-06-20T08:04:28Z","symbol":"NIM1561260","token_address":"0x38d729e31715d347b4bd3d136b79cf70f56de7f7","type":"artist","uuid":"a70ca067-2cdc-45c7-941f-0bb761f482f5"}
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 0xbb5ef9efd1e6917bda9e657563fb1b03b32f7471be441febc5b44b7872424b62. 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/a70ca067-2cdc-45c7-941f-0bb761f482f5.json and https://artists.proofprofile.net/proofs/artist/a70ca067-2cdc-45c7-941f-0bb761f482f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xbb5ef9efd1e6917bda9e657563fb1b03b32f7471be441febc5b44b7872424b62","name":"Signum A.D.","registered_at":"2026-06-20T08:04:28Z","symbol":"NIM1561260","token_address":"0x38d729e31715d347b4bd3d136b79cf70f56de7f7","type":"artist","uuid":"a70ca067-2cdc-45c7-941f-0bb761f482f5"}
album: Music As Morphine EP
  type: MusicAlbum
  date published: 2008-02-19
album: The Unsilenced
  type: MusicAlbum
  date published: 2010-06-01
album: Veto the Vultures, Vol. 1
  type: MusicAlbum
  date published: 2012-08-21