15Nassau
type: MusicGroup
popularity: 10
followers: 907
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5c89dee4804c76241249b4546859b72d8aeb0ef60b612a50a7605824472bee0c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb978164-3ad8-4f60-84b7-3e3dafae2e52.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb978164-3ad8-4f60-84b7-3e3dafae2e52.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb978164-3ad8-4f60-84b7-3e3dafae2e52
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
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 0x5c89dee4804c76241249b4546859b72d8aeb0ef60b612a50a7605824472bee0c. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb978164-3ad8-4f60-84b7-3e3dafae2e52.json and https://artists.proofprofile.net/proofs/artist/fb978164-3ad8-4f60-84b7-3e3dafae2e52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
album: SSKP
  type: MusicAlbum
  date published: 2022-06-15
album: Talk Yo Shyt
  type: MusicAlbum
  date published: 2022-09-05
  track: Talk Yo Shyt
    type: MusicRecording
    duration: PT2M19S
    duration ms: 139103
    explicit: true
    by artist: 15Nassau
    in album: Talk Yo Shyt
      type: MusicAlbum
      date published: 2022-09-05
    isrc code: QZNWV2228343
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T01:19:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6a2b4e1827cefbbcec30c15f67855da9d768c219c7a1163dfbc3b1b93fac6f52
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2228343
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x6a2b4e1827cefbbcec30c15f67855da9d768c219c7a1163dfbc3b1b93fac6f52. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWV2228343.
      date published: 2026-07-06T01:26:17Z
    audio: Talk Yo Shyt
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.035
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.81
      additional property: Energy
        type: PropertyValue
        value: 0.478
      additional property: Speechiness
        type: PropertyValue
        value: 0.321
      additional property: Acousticness
        type: PropertyValue
        value: 0.166
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.62
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.399
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Reasonz
  type: MusicAlbum
  date published: 2022-11-23
album: Jail Call
  type: MusicAlbum
  date published: 2022-11-23
album: Savitor
  type: MusicAlbum
  date published: 2022-12-02
album: LunarMeclipse
  type: MusicAlbum
  date published: 2023-03-18
album: WDCAC
  type: MusicAlbum
  date published: 2023-05-27
album: This Or That
  type: MusicAlbum
  date published: 2023-09-15
album: Sleep Walking
  type: MusicAlbum
  date published: 2023-09-15
album: Therapy
  type: MusicAlbum
  date published: 2023-12-25
album: KILLYOURDAD
  type: MusicAlbum
  date published: 2023-12-25
album: De'Aaron Fox
  type: MusicAlbum
  date published: 2024-01-09
album: Eternal Pain
  type: MusicAlbum
  date published: 2024-02-20
album: 2351
  type: MusicAlbum
  date published: 2024-06-25
album: 2351 Deluxe
  type: MusicAlbum
  date published: 2025-01-27
album: Too Hot
  type: MusicAlbum
  date published: 2025-08-20