Rollin Hand
type: MusicGroup
popularity: 21
followers: 149
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd6a7df8ba0b2bf217c7de1751cb39cfecf6c96d2c98f7fe2ca32d43da112041
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99c9fd74-da41-4b71-9a82-c18bccaed95c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/99c9fd74-da41-4b71-9a82-c18bccaed95c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/99c9fd74-da41-4b71-9a82-c18bccaed95c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbd6a7df8ba0b2bf217c7de1751cb39cfecf6c96d2c98f7fe2ca32d43da112041","name":"Rollin Hand","registered_at":"2026-06-12T05:21:30Z","symbol":"NIM0199066","token_address":"0x5d682c37a8726781a558c40ba3354c2094e03e5c","type":"artist","uuid":"99c9fd74-da41-4b71-9a82-c18bccaed95c"}
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 0xbd6a7df8ba0b2bf217c7de1751cb39cfecf6c96d2c98f7fe2ca32d43da112041. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/99c9fd74-da41-4b71-9a82-c18bccaed95c.json and https://artists.proofprofile.net/proofs/artist/99c9fd74-da41-4b71-9a82-c18bccaed95c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0xbd6a7df8ba0b2bf217c7de1751cb39cfecf6c96d2c98f7fe2ca32d43da112041","name":"Rollin Hand","registered_at":"2026-06-12T05:21:30Z","symbol":"NIM0199066","token_address":"0x5d682c37a8726781a558c40ba3354c2094e03e5c","type":"artist","uuid":"99c9fd74-da41-4b71-9a82-c18bccaed95c"}
album: mosaic maker
  type: MusicAlbum
  date published: 2022-06-03
album: Baby Crocodile
  type: MusicAlbum
  date published: 2022-11-04
album: Le Marais
  type: MusicAlbum
  date published: 2023-03-31
  track: Le Marais
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207416
    explicit: false
    by artist: Rollin Hand
    in album: Le Marais
      type: MusicAlbum
      date published: 2023-03-31
    isrc code: SEXGF2395144
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:36:58+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0b8752af460a99582864711596380105a3304ae7db38f8131d8211a71916782f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEXGF2395144
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b8752af460a99582864711596380105a3304ae7db38f8131d8211a71916782f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SEXGF2395144.
      date published: 2026-07-05T19:27:56Z
    audio: Le Marais
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.969
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.801
      additional property: Energy
        type: PropertyValue
        value: 0.618
      additional property: Speechiness
        type: PropertyValue
        value: 0.072
      additional property: Acousticness
        type: PropertyValue
        value: 0.767
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.907
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.575
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.003
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tokyo Traffic
  type: MusicAlbum
  date published: 2023-04-28
album: Opening Night
  type: MusicAlbum
  date published: 2023-06-02
album: 230 SL
  type: MusicAlbum
  date published: 2023-08-04
album: first cruise
  type: MusicAlbum
  date published: 2024-03-22
album: Rooftop
  type: MusicAlbum
  date published: 2024-11-22
  track: Rooftop
    type: MusicRecording
    duration: PT2M27S
    duration ms: 147000
    explicit: false
    by artist: Rollin Hand
    in album: Rooftop
      type: MusicAlbum
      date published: 2024-11-22
    isrc code: SEXGF2495226
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T05:00:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x542485670e471614e3e97c5e5dcdf29c2ad04e29f007abf16a219a0fa5219e1b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956484
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956484
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEXGF2495226
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T10:47:44Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542485670e471614e3e97c5e5dcdf29c2ad04e29f007abf16a219a0fa5219e1b. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/SEXGF2495226.
      date published: 2026-07-03T10:47:44Z
    audio: Rooftop
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 204.199
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.453
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Energy
type: PropertyValue
value: 0.373

Speechiness
type: PropertyValue
value: 0.1

Acousticness
type: PropertyValue
value: 0.858

Instrumentalness
type: PropertyValue
value: 0.731

Liveness
type: PropertyValue
value: 0.121

Valence (Positivity)
type: PropertyValue
value: 0.236

Loudness (dB)
type: PropertyValue
value: -9.685

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Minor