Seventh Sea
type: MusicGroup
genre: hard techno
genre: melodic techno
popularity: 2
followers: 477
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x90f9a95273dc71c4a93f34dbf2c305a9f52ff9e99789720ee0d6c8fc4d052fd9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ce569d9-d8ff-4872-9bee-a06400bdf797.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6ce569d9-d8ff-4872-9bee-a06400bdf797.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6ce569d9-d8ff-4872-9bee-a06400bdf797
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x90f9a95273dc71c4a93f34dbf2c305a9f52ff9e99789720ee0d6c8fc4d052fd9","name":"Seventh Sea","registered_at":"2026-06-17T03:29:53Z","symbol":"NIM1267139","token_address":"0x133b8162a31ec5f8482e6df3c0df096cde29f196","type":"artist","uuid":"6ce569d9-d8ff-4872-9bee-a06400bdf797"}
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 0x90f9a95273dc71c4a93f34dbf2c305a9f52ff9e99789720ee0d6c8fc4d052fd9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6ce569d9-d8ff-4872-9bee-a06400bdf797.json and https://artists.proofprofile.net/proofs/artist/6ce569d9-d8ff-4872-9bee-a06400bdf797.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x90f9a95273dc71c4a93f34dbf2c305a9f52ff9e99789720ee0d6c8fc4d052fd9","name":"Seventh Sea","registered_at":"2026-06-17T03:29:53Z","symbol":"NIM1267139","token_address":"0x133b8162a31ec5f8482e6df3c0df096cde29f196","type":"artist","uuid":"6ce569d9-d8ff-4872-9bee-a06400bdf797"}
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