13 Crowns
type: MusicGroup
popularity: 13
followers: 1287
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb736b4757c283292ac63d8f45c6c59e7c8c9c31c1d50c59483aea0f2689e0042
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953660
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953660
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5407c5ff-3a0e-446c-9759-952a32ec40e5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5407c5ff-3a0e-446c-9759-952a32ec40e5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5407c5ff-3a0e-446c-9759-952a32ec40e5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:20:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb736b4757c283292ac63d8f45c6c59e7c8c9c31c1d50c59483aea0f2689e0042","name":"13 Crowns","registered_at":"2026-06-14T13:17:25Z","symbol":"NIM0464709","token_address":"0x62f63d17184eedfffdef71514d9b2ae1b85218f8","type":"artist","uuid":"5407c5ff-3a0e-446c-9759-952a32ec40e5"}
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 0xb736b4757c283292ac63d8f45c6c59e7c8c9c31c1d50c59483aea0f2689e0042. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5407c5ff-3a0e-446c-9759-952a32ec40e5.json and https://artists.proofprofile.net/proofs/artist/5407c5ff-3a0e-446c-9759-952a32ec40e5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T17:20:01Z
  text: {"copyright_id":"0xb736b4757c283292ac63d8f45c6c59e7c8c9c31c1d50c59483aea0f2689e0042","name":"13 Crowns","registered_at":"2026-06-14T13:17:25Z","symbol":"NIM0464709","token_address":"0x62f63d17184eedfffdef71514d9b2ae1b85218f8","type":"artist","uuid":"5407c5ff-3a0e-446c-9759-952a32ec40e5"}
album: Grateful
  type: MusicAlbum
  date published: 2017-09-11
album: Grateful (feat. Poo Bear)
  type: MusicAlbum
  date published: 2018-09-21
album: Grateful
  type: MusicAlbum
  date published: 2018-09-21
album: Grateful
  type: MusicAlbum
  date published: 2018-09-21
album: Together We Stand
  type: MusicAlbum
  date published: 2019-09-27
album: Angels Sing
  type: MusicAlbum
  date published: 2019-11-29
album: Together We Stand (The Audibles Remix)
  type: MusicAlbum
  date published: 2021-07-16
album: Together We Stand (The Audibles Remix)
  type: MusicAlbum
  date published: 2021-07-16
album: From The Beginning
  type: MusicAlbum
  date published: 2022-09-30
album: From The Beginning
  type: MusicAlbum
  date published: 2022-09-30