Acir
type: MusicGroup
genre: pentecostal
genre: sertanejo tradicional
popularity: 5
followers: 164
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9728c59c4618159732370694ba35c297fa52536381efe49755c9fd078b7c6445
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c57029b1-be34-4d31-b419-82a96ec007f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c57029b1-be34-4d31-b419-82a96ec007f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c57029b1-be34-4d31-b419-82a96ec007f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
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 0x9728c59c4618159732370694ba35c297fa52536381efe49755c9fd078b7c6445. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c57029b1-be34-4d31-b419-82a96ec007f6.json and https://artists.proofprofile.net/proofs/artist/c57029b1-be34-4d31-b419-82a96ec007f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T22:44:50Z
album: A Cura do Coração, Vol. 13 (Parada Firme em Jesus)
  type: MusicAlbum
  date published: 2015-12-14
  track: Firme em Jesus
    type: MusicRecording
    duration: PT2M53S
    duration ms: 173333
    explicit: false
    by artist: Acir
    in album: A Cura do Coração, Vol. 13 (Parada Firme em Jesus)
      type: MusicAlbum
      date published: 2015-12-14
    genre: pentecostal
    genre: sertanejo tradicional
    isrc code: BRXMI1500432
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T05:25:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbf076d3dcefcdfffd8f884927d172ba87fe08f2a81ca1394dcceeb27a6426f71
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959103
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959103
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRXMI1500432
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T05:56:21Z
    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 0xbf076d3dcefcdfffd8f884927d172ba87fe08f2a81ca1394dcceeb27a6426f71. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/BRXMI1500432.
      date published: 2026-07-22T05:56:21Z
    audio: Firme em Jesus
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.007
      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: 0.587
      additional property: Energy
        type: PropertyValue
        value: 0.514
      additional property: Speechiness
        type: PropertyValue
        value: 0.026
      additional property: Acousticness
        type: PropertyValue
        value: 0.315
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.182
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.733
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.12
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: A Cura do Coração
    type: MusicRecording
    duration: PT2M22S
    duration ms: 142360
    explicit: false
    by artist: Acir
    in album: A Cura do Coração, Vol. 13 (Parada Firme em Jesus)
      type: MusicAlbum
      date published: 2015-12-14
    genre: pentecostal
    genre: sertanejo tradicional
    isrc code: BRXMI1500433
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T07:13:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x49b47e624f7dfd3da2779b832635cabfbb4c4b7b0b632d7a81cf8351fe209079
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958517
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958517
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRXMI1500433
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T07:54:29Z
    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 0x49b47e624f7dfd3da2779b832635cabfbb4c4b7b0b632d7a81cf8351fe209079. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BRXMI1500433.
      date published: 2026-07-18T07:54:29Z
    audio: A Cura do Coração
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.943
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.681
      additional property: Energy
        type: PropertyValue
        value: 0.669
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.319
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.091
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.803
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Estrela Presente, Vol. 12

Loudness (dB)
type: PropertyValue
value: -6.494

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Estrela Presente, Vol. 12
type: MusicAlbum
date published: 2015-12-15