Hey Cossa
type: MusicGroup
popularity: 2
followers: 38
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb755f534d2b4f4b658800dd13d016d910945e1f0d8ef6693ff5319ca24dfc5f0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8df35c13-198f-4c94-bc89-75a8cafd4252.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8df35c13-198f-4c94-bc89-75a8cafd4252.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8df35c13-198f-4c94-bc89-75a8cafd4252
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb755f534d2b4f4b658800dd13d016d910945e1f0d8ef6693ff5319ca24dfc5f0","name":"Hey Cossa","registered_at":"2026-06-17T14:56:26Z","symbol":"NIM1430801","token_address":"0x4f4610a2bc2b408e89e29c44e37bdda6383872f3","type":"artist","uuid":"8df35c13-198f-4c94-bc89-75a8cafd4252"}
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 0xb755f534d2b4f4b658800dd13d016d910945e1f0d8ef6693ff5319ca24dfc5f0. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8df35c13-198f-4c94-bc89-75a8cafd4252.json and https://artists.proofprofile.net/proofs/artist/8df35c13-198f-4c94-bc89-75a8cafd4252.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xb755f534d2b4f4b658800dd13d016d910945e1f0d8ef6693ff5319ca24dfc5f0","name":"Hey Cossa","registered_at":"2026-06-17T14:56:26Z","symbol":"NIM1430801","token_address":"0x4f4610a2bc2b408e89e29c44e37bdda6383872f3","type":"artist","uuid":"8df35c13-198f-4c94-bc89-75a8cafd4252"}
album: Blue Face
  type: MusicAlbum
  date published: 2018-01-05
album: Day in the Life
  type: MusicAlbum
  date published: 2018-08-24
album: Hey Cossa!
  type: MusicAlbum
  date published: 2018-08-31
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  type: MusicAlbum
  date published: 2018-09-05
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  type: MusicAlbum
  date published: 2019-01-05
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  type: MusicAlbum
  date published: 2019-02-02
album: Any Day
  type: MusicAlbum
  date published: 2019-12-03
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  type: MusicAlbum
  date published: 2020-01-10
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  type: MusicAlbum
  date published: 2020-03-06
album: State2State
  type: MusicAlbum
  date published: 2023-02-22
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  type: MusicAlbum
  date published: 2023-02-22
album: So Upset
  type: MusicAlbum
  date published: 2023-02-22
album: A New York Second
  type: MusicAlbum
  date published: 2023-02-22
album: Mailbox Musik Vol. 1
  type: MusicAlbum
  date published: 2023-04-13