Rolland
type: MusicGroup
description: Rolland is a surname and masculine given name which may refer to: Surname Alain Rolland (born 1966), Irish rugby player and referee Andy Rolland (born 1942), Scottish footballer Antonin Rolland (b
popularity: 7
followers: 1997
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-16T07:53:13Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc42c9928ba2728d30739cb25035a371da17ad1499dbd8ebbe017d827d1b41686. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1336d95e-a990-49f4-a058-fd5949f3b026.json and https://artists.proofprofile.net/proofs/artist/1336d95e-a990-49f4-a058-fd5949f3b026.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: 4000 Miles
  type: MusicAlbum
  date published: 2020-11-11
album: Hey Summer
  type: MusicAlbum
  date published: 2021-07-18
album: more than u know
  type: MusicAlbum
  date published: 2021-08-17
  track: more than u know
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224503
    explicit: false
    by artist: Rolland
    in album: more than u know
      type: MusicAlbum
      date published: 2021-08-17
    isrc code: GX4R52150549
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:16:32Z
    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 0x648aa2f7da3d2922a4d1b404aabe7c39bfdf5329ba52c84b48bc0b0996e974a1. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/GX4R52150549.
      date published: 2026-07-06T07:16:32Z
    audio: more than u know
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.966
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.608
      additional property: Energy
        type: PropertyValue
        value: 0.332
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.334
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.514
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.108
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
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album: Mama, We Made It
  type: MusicAlbum
  date published: 2021-12-27
album: Style
  type: MusicAlbum
  date published: 2022-01-01
album: hopeless romantic
  type: MusicAlbum
  date published: 2022-09-08
album: a song for someone you've lost
  type: MusicAlbum
  date published: 2022-12-16
album: our love song
  type: MusicAlbum
  date published: 2023-01-30
  track: our love song
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195348
    explicit: false
    by artist: Rolland
    in album: our love song
      type: MusicAlbum
      date published: 2023-01-30
    isrc code: FR2X42301437
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T19:27:02Z
    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 0x91ad02f8ece13a008231223091e90b9add0f9d67414479c29c7a64aa9a6aa1fa. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR2X42301437.
      date published: 2026-07-18T19:27:02Z
    audio: our love song
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.022
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.703
      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
album: Canada
album: the story never really dies
album: Find Somebody

Energy
type: PropertyValue
value: 0.435

Speechiness
type: PropertyValue
value: 0.033

Acousticness
type: PropertyValue
value: 0.664

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.261

Valence (Positivity)
type: PropertyValue
value: 0.452

Loudness (dB)
type: PropertyValue
value: -10.362

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major

Canada
type: MusicAlbum
date published: 2023-08-24

the story never really dies
type: MusicAlbum
date published: 2024-07-08

Find Somebody
type: MusicAlbum
date published: 2025-06-20