Projeto Rascunhos
type: MusicGroup
popularity: 6
followers: 519
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xea087e46dd4f99df441e976da39dac5cb7e166e3487696ed79d9d161e6a98d91
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6364d271-7efb-4e8c-9ca4-ab85a7d0ab9b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6364d271-7efb-4e8c-9ca4-ab85a7d0ab9b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6364d271-7efb-4e8c-9ca4-ab85a7d0ab9b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xea087e46dd4f99df441e976da39dac5cb7e166e3487696ed79d9d161e6a98d91","name":"Projeto Rascunhos","registered_at":"2026-06-17T00:16:21Z","symbol":"NIM1220956","token_address":"0x5967f9d93a216b3370951e6f12dba776227b023c","type":"artist","uuid":"6364d271-7efb-4e8c-9ca4-ab85a7d0ab9b"}
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 0xea087e46dd4f99df441e976da39dac5cb7e166e3487696ed79d9d161e6a98d91. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6364d271-7efb-4e8c-9ca4-ab85a7d0ab9b.json and https://artists.proofprofile.net/proofs/artist/6364d271-7efb-4e8c-9ca4-ab85a7d0ab9b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xea087e46dd4f99df441e976da39dac5cb7e166e3487696ed79d9d161e6a98d91","name":"Projeto Rascunhos","registered_at":"2026-06-17T00:16:21Z","symbol":"NIM1220956","token_address":"0x5967f9d93a216b3370951e6f12dba776227b023c","type":"artist","uuid":"6364d271-7efb-4e8c-9ca4-ab85a7d0ab9b"}
album: Recomeço
  type: MusicAlbum
  date published: 2021-12-10
  track: Recomeço
    type: MusicRecording
    duration: PT5M33S
    duration ms: 333388
    explicit: false
    by artist: Projeto Rascunhos
    in album: Recomeço
      type: MusicAlbum
      date published: 2021-12-10
    isrc code: BCOYF2100006
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T02:21:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1ff0670e28238f5abfc184c760545e77a161d17df3a92029a7cf963efa6b7204
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958228
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958228
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCOYF2100006
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T05:23:45Z
    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 0x1ff0670e28238f5abfc184c760545e77a161d17df3a92029a7cf963efa6b7204. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:23:45Z), 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/BCOYF2100006.
      date published: 2026-07-16T05:23:45Z
    audio: Recomeço
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 83.876
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.344
      additional property: Energy
        type: PropertyValue
        value: 0.137
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.962
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.083
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.558
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Recomeço (Playback)
  type: MusicAlbum
  date published: 2022-01-12
album: Habita em Mim
  type: MusicAlbum
  date published: 2022-08-19
album: Herança
  type: MusicAlbum
  date published: 2023-12-21
  track: Herança
    type: MusicRecording
    duration: PT4M48S
    duration ms: 288750
    explicit: false
    by artist: Projeto Rascunhos
    in album: Herança
      type: MusicAlbum
      date published: 2023-12-21
    isrc code: BCOYF2300001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T11:14:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xd55b6c77c40b57501df95fc65735ef8be4fa53de81aa8865f67b45562b1ac6df
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCOYF2300001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T12:24:55Z
    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 0xd55b6c77c40b57501df95fc65735ef8be4fa53de81aa8865f67b45562b1ac6df. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/BCOYF2300001.
      date published: 2026-07-19T12:24:55Z
    audio: Herança
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.812
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.359
      additional property: Energy
        type: PropertyValue
        value: 0.221
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.743
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.387

Valence (Positivity)
type: PropertyValue
value: 0.183

Loudness (dB)
type: PropertyValue
value: -10.223

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major