Purple Velvet
type: MusicGroup
genre: jazz house
genre: lo-fi house
popularity: 23
followers: 3841
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf36368726bb9a97ae011fae3e57f55bbc4ad8f6d758c4d2a7e720e94990c78f7
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/bcd4c428-ee31-4a69-bb82-7b47a7ae7a69.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcd4c428-ee31-4a69-bb82-7b47a7ae7a69.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bcd4c428-ee31-4a69-bb82-7b47a7ae7a69
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf36368726bb9a97ae011fae3e57f55bbc4ad8f6d758c4d2a7e720e94990c78f7","name":"Purple Velvet","registered_at":"2026-06-12T08:34:19Z","symbol":"NIM0243610","token_address":"0x39c749452983c297e4b8cc226ba216aeb64012a8","type":"artist","uuid":"bcd4c428-ee31-4a69-bb82-7b47a7ae7a69"}
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 0xf36368726bb9a97ae011fae3e57f55bbc4ad8f6d758c4d2a7e720e94990c78f7. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcd4c428-ee31-4a69-bb82-7b47a7ae7a69.json and https://artists.proofprofile.net/proofs/artist/bcd4c428-ee31-4a69-bb82-7b47a7ae7a69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xf36368726bb9a97ae011fae3e57f55bbc4ad8f6d758c4d2a7e720e94990c78f7","name":"Purple Velvet","registered_at":"2026-06-12T08:34:19Z","symbol":"NIM0243610","token_address":"0x39c749452983c297e4b8cc226ba216aeb64012a8","type":"artist","uuid":"bcd4c428-ee31-4a69-bb82-7b47a7ae7a69"}
album: Flashways
  type: MusicAlbum
  date published: 2012-05-21
album: Flashways
  type: MusicAlbum
  date published: 2012-05-21
album: Death of the Warehouse EP
  type: MusicAlbum
  date published: 2013-06-10
album: Sparks Fly EP
  type: MusicAlbum
  date published: 2013-07-12
album: Solstice
  type: MusicAlbum
  date published: 2013-10-01
album: Solstice
  type: MusicAlbum
  date published: 2013-10-01
album: Sparks Fly EP
  type: MusicAlbum
  date published: 2013-12-07
  track: Sparks Fly - Original Mix
    type: MusicRecording
    duration: PT7M48S
    duration ms: 468786
    explicit: false
    by artist: Purple Velvet
    in album: Sparks Fly EP
      type: MusicAlbum
      date published: 2013-12-07
    genre: jazz house
    genre: lo-fi house
    isrc code: DEZ651318581
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:50:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3b38198ebc5b3c0ce0cfa59feaa382f74a7f9b790455cb0dd771d030c2b7c825
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958774
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958774
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZ651318581
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:03:27Z
    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 0x3b38198ebc5b3c0ce0cfa59feaa382f74a7f9b790455cb0dd771d030c2b7c825. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/DEZ651318581.
      date published: 2026-07-19T20:03:27Z
    audio: Sparks Fly - Original Mix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.005
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.84
      additional property: Energy
        type: PropertyValue
        value: 0.522
      additional property: Speechiness
        type: PropertyValue
        value: 0.187
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.313
      additional property: Liveness
        type: PropertyValue
        value: 0.06
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.464
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.293
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: The Remedy EP
  type: MusicAlbum
  date published: 2014-01-20
album: All My Days
  type: MusicAlbum
  date published: 2014-07-21
  track: Sleeper
    type: MusicRecording
    duration: PT6M27S
    duration ms: 387621
    explicit: false
    by artist: Purple Velvet
    in album: All My Days
      type: MusicAlbum
      date published: 2014-07-21
    genre: jazz house
    genre: lo-fi house
    isrc code: GB7EJ1400753
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T17:26:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa26a29d882a7a5c1a37413dfd5b4aced03b4c3d44500ef21e627293f613b0401
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956545
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956545
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB7EJ1400753
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T19:59:51Z
    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 0xa26a29d882a7a5c1a37413dfd5b4aced03b4c3d44500ef21e627293f613b0401. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GB7EJ1400753.
      date published: 2026-07-03T19:59:51Z
    audio: Sleeper
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.987
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      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: Never Knew EP
album: Trials & Tribulations
album: Marble Zone EP
album: Dandelion's Childhood
album: The Live EP

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.808

Energy
type: PropertyValue
value: 0.482

Speechiness
type: PropertyValue
value: 0.086

Acousticness
type: PropertyValue
value: 0.001

Instrumentalness
type: PropertyValue
value: 0.782

Liveness
type: PropertyValue
value: 0.096

Valence (Positivity)
type: PropertyValue
value: 0.263

Loudness (dB)
type: PropertyValue
value: -13.076

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

All My Days
type: MusicAlbum
date published: 2014-07-21

Never Knew EP
type: MusicAlbum
date published: 2014-12-14

Trials & Tribulations
type: MusicAlbum
date published: 2014-12-22

Trials & Tribulations
type: MusicAlbum
date published: 2014-12-22

Marble Zone EP
type: MusicAlbum
date published: 2015-01-05

Dandelion's Childhood
type: MusicAlbum
date published: 2017-11-29

The Live EP
type: MusicAlbum
date published: 2024-09-13