Sad Summer
type: MusicGroup
popularity: 2
followers: 119
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x94a1bebfe291b9658f9108dddd25c1025e11a5f0c38c2488993420a250650122
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7f6a83c-46f9-4184-9b2f-5090b2493ca0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b7f6a83c-46f9-4184-9b2f-5090b2493ca0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b7f6a83c-46f9-4184-9b2f-5090b2493ca0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x94a1bebfe291b9658f9108dddd25c1025e11a5f0c38c2488993420a250650122","name":"Sad Summer","registered_at":"2026-06-20T15:44:41Z","symbol":"NIM1644556","token_address":"0x941209f59aa49b5556066b40427c7658dd919ac0","type":"artist","uuid":"b7f6a83c-46f9-4184-9b2f-5090b2493ca0"}
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 0x94a1bebfe291b9658f9108dddd25c1025e11a5f0c38c2488993420a250650122. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7f6a83c-46f9-4184-9b2f-5090b2493ca0.json and https://artists.proofprofile.net/proofs/artist/b7f6a83c-46f9-4184-9b2f-5090b2493ca0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x94a1bebfe291b9658f9108dddd25c1025e11a5f0c38c2488993420a250650122","name":"Sad Summer","registered_at":"2026-06-20T15:44:41Z","symbol":"NIM1644556","token_address":"0x941209f59aa49b5556066b40427c7658dd919ac0","type":"artist","uuid":"b7f6a83c-46f9-4184-9b2f-5090b2493ca0"}
album: Fishbowl
  type: MusicAlbum
  date published: 2020-05-27
album: EP
  type: MusicAlbum
  date published: 2020-05-27