David Feldman Trio
type: MusicGroup
popularity: 14
followers: 37
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98eaa8dda9d3ab0e1dbefec301e325b969221b12cf0cc197ec4d1cbb170ab26f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953762
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953762
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba64af75-3bf0-4c6b-8a24-6769979ab70d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ba64af75-3bf0-4c6b-8a24-6769979ab70d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ba64af75-3bf0-4c6b-8a24-6769979ab70d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:21:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x98eaa8dda9d3ab0e1dbefec301e325b969221b12cf0cc197ec4d1cbb170ab26f","name":"David Feldman Trio","registered_at":"2026-06-15T00:03:30Z","symbol":"NIM0618812","token_address":"0x019c68e7065699983caef73760f1a4ab3cc5d555","type":"artist","uuid":"ba64af75-3bf0-4c6b-8a24-6769979ab70d"}
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 0x98eaa8dda9d3ab0e1dbefec301e325b969221b12cf0cc197ec4d1cbb170ab26f. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba64af75-3bf0-4c6b-8a24-6769979ab70d.json and https://artists.proofprofile.net/proofs/artist/ba64af75-3bf0-4c6b-8a24-6769979ab70d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:21:23Z
  text: {"copyright_id":"0x98eaa8dda9d3ab0e1dbefec301e325b969221b12cf0cc197ec4d1cbb170ab26f","name":"David Feldman Trio","registered_at":"2026-06-15T00:03:30Z","symbol":"NIM0618812","token_address":"0x019c68e7065699983caef73760f1a4ab3cc5d555","type":"artist","uuid":"ba64af75-3bf0-4c6b-8a24-6769979ab70d"}
track: Deixa a Menina

Deixa a Menina
type: MusicRecording
duration: PT4M36S
duration ms: 276373
explicit: false
by artist: Bossacucanova
by artist: Maria Rita
by artist: David Feldman Trio
in album: Nossa Onda É Essa!
  type: MusicAlbum
  date published: 2012
isrc code: BRED61200002
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-07T11:42:27+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf323228efa83c2673c10aae0c45eca8b0affa2709378117e042fa1cb180c1c23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953528
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953528
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRED61200002
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T15:41:10+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 953528
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T15:41:10+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf323228efa83c2673c10aae0c45eca8b0affa2709378117e042fa1cb180c1c23. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRED61200002.
  date published: 2026-06-13T17:25:41Z
audio: Deixa a Menina
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 116.662
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.739
  additional property: Energy
    type: PropertyValue
    value: 0.81
  additional property: Speechiness
    type: PropertyValue
    value: 0.038
  additional property: Acousticness
    type: PropertyValue
    value: 0.387
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.147
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.729
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.054
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major