306area
type: MusicGroup
popularity: 2
followers: 16
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeda9ff69004d6059539ff09c630e4f139f99696de8ed74e6297711aca3b62e33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953963
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953963
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27faa2c7-caf8-4f35-805d-6cc8c9ce35c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27faa2c7-caf8-4f35-805d-6cc8c9ce35c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/27faa2c7-caf8-4f35-805d-6cc8c9ce35c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T15:12:33Z
additional property: OTSCanonicalRecord
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 0xeda9ff69004d6059539ff09c630e4f139f99696de8ed74e6297711aca3b62e33. Chain 2 (Bitcoin): anchored in block 953963 (2026-06-16T15:12:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27faa2c7-caf8-4f35-805d-6cc8c9ce35c7.json and https://artists.proofprofile.net/proofs/artist/27faa2c7-caf8-4f35-805d-6cc8c9ce35c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T15:12:33Z
album: Tide
  type: MusicAlbum
  date published: 2024-07-13
album: Tide
  type: MusicAlbum
  date published: 2024-07-13
album: 針の先
  type: MusicAlbum
  date published: 2025-04-20
album: Harinosaki
  type: MusicAlbum
  date published: 2025-04-20
album: 光の中へ
  type: MusicAlbum
  date published: 2025-05-19
album: Hikarinonakae
  type: MusicAlbum
  date published: 2025-05-19
album: 夏の片隅に。
  type: MusicAlbum
  date published: 2025-06-10
album: Idea
  type: MusicAlbum
  date published: 2025-06-10
album: natsunokatasumini
  type: MusicAlbum
  date published: 2025-06-10
album: Idea
  type: MusicAlbum
  date published: 2025-06-10