Seven Day Sonnet
type: MusicGroup
popularity: 18
followers: 4745
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x839d61b5f82ffecdd2b2e5f8caf4ca26778702929fe3d93fb4b55699dabd795b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/454fe04f-3184-4c0b-bcbe-793d9fe59544.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/454fe04f-3184-4c0b-bcbe-793d9fe59544.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/454fe04f-3184-4c0b-bcbe-793d9fe59544
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x839d61b5f82ffecdd2b2e5f8caf4ca26778702929fe3d93fb4b55699dabd795b","name":"Seven Day Sonnet","registered_at":"2026-06-14T11:43:23Z","symbol":"NIM0442260","token_address":"0x71ea6d9cbf6db5cae7fcc53993b0aa92a499561b","type":"artist","uuid":"454fe04f-3184-4c0b-bcbe-793d9fe59544"}
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 0x839d61b5f82ffecdd2b2e5f8caf4ca26778702929fe3d93fb4b55699dabd795b. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/454fe04f-3184-4c0b-bcbe-793d9fe59544.json and https://artists.proofprofile.net/proofs/artist/454fe04f-3184-4c0b-bcbe-793d9fe59544.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x839d61b5f82ffecdd2b2e5f8caf4ca26778702929fe3d93fb4b55699dabd795b","name":"Seven Day Sonnet","registered_at":"2026-06-14T11:43:23Z","symbol":"NIM0442260","token_address":"0x71ea6d9cbf6db5cae7fcc53993b0aa92a499561b","type":"artist","uuid":"454fe04f-3184-4c0b-bcbe-793d9fe59544"}
album: Reprisal
  type: MusicAlbum
  date published: 2009-07-18
album: Hapless - Single
  type: MusicAlbum
  date published: 2011-02-22
album: SPRING FLING
  type: MusicAlbum
  date published: 2011-04-12
album: Farewell To Good Days - Single
  type: MusicAlbum
  date published: 2011-08-15
album: Farewell To Good Days - Single
  type: MusicAlbum
  date published: 2011-08-15
album: Spring Fling
  type: MusicAlbum
  date published: 2011-09-01
album: Crying My Name
  type: MusicAlbum
  date published: 2012-11-30