Mona Barbera
type: MusicGroup
genre: free jazz
popularity: 3
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66e9d894bc1c20aa0a962bb1cf0949be925dcf1b43a7fb344cfe9a6bd5f6501b
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/651c28d9-f73f-494f-a242-7c77c52ae75e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/651c28d9-f73f-494f-a242-7c77c52ae75e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/651c28d9-f73f-494f-a242-7c77c52ae75e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66e9d894bc1c20aa0a962bb1cf0949be925dcf1b43a7fb344cfe9a6bd5f6501b","name":"Mona Barbera","registered_at":"2026-06-17T00:58:30Z","symbol":"NIM1231008","token_address":"0x05a89833ce58189889c9e294dfb8264d18ac9858","type":"artist","uuid":"651c28d9-f73f-494f-a242-7c77c52ae75e"}
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 0x66e9d894bc1c20aa0a962bb1cf0949be925dcf1b43a7fb344cfe9a6bd5f6501b. 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/651c28d9-f73f-494f-a242-7c77c52ae75e.json and https://artists.proofprofile.net/proofs/artist/651c28d9-f73f-494f-a242-7c77c52ae75e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x66e9d894bc1c20aa0a962bb1cf0949be925dcf1b43a7fb344cfe9a6bd5f6501b","name":"Mona Barbera","registered_at":"2026-06-17T00:58:30Z","symbol":"NIM1231008","token_address":"0x05a89833ce58189889c9e294dfb8264d18ac9858","type":"artist","uuid":"651c28d9-f73f-494f-a242-7c77c52ae75e"}
track: North Brazilian Ceremonial Hymn

North Brazilian Ceremonial Hymn
type: MusicRecording
duration: PT12M24S
duration ms: 744893
explicit: false
by artist: Don Cherry
by artist: Naná Vasconcelos
by artist: Moki Cherry
by artist: Helen Eggert
by artist: Steen Claesson
by artist: Roger Burk
by artist: Anana Rydvall
by artist: Marianne Rydvall
by artist: Lil Stalheim
by artist: Nikko Stalheim
by artist: Ole Sophus Amfred
by artist: Mona Barbera
in album: Organic Music Society
  type: MusicAlbum
  date published: 1972
isrc code: SEAGA1200201
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T04:12:24+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xba9fe063ed2b93fbe4d9e906cb1be388ae3bfba41a187bd9397a8f9b35f3b8e2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEAGA1200201
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0xba9fe063ed2b93fbe4d9e906cb1be388ae3bfba41a187bd9397a8f9b35f3b8e2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEAGA1200201.
  date published: 2026-07-02T05:09:12Z
audio: North Brazilian Ceremonial Hymn
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.708
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.187
  additional property: Energy
    type: PropertyValue
    value: 0.411
  additional property: Speechiness
    type: PropertyValue
    value: 0.036
  additional property: Acousticness
    type: PropertyValue
    value: 0.783
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.1
  additional property: Liveness
    type: PropertyValue
    value: 0.099
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.04
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.498
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major