Massimo Altieri
type: MusicGroup
genre: medieval
popularity: 2
followers: 79
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4371e0af27b454248ee9c67a2ce3063a6a19e00c591e81c2b9bfccc4f8c9d292
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e45d7eaa-a167-430e-af20-92f2f10b3dae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e45d7eaa-a167-430e-af20-92f2f10b3dae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e45d7eaa-a167-430e-af20-92f2f10b3dae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4371e0af27b454248ee9c67a2ce3063a6a19e00c591e81c2b9bfccc4f8c9d292","name":"Massimo Altieri","registered_at":"2026-06-21T07:54:53Z","symbol":"NIM1868169","token_address":"0xc5234e2f1eae8b743cd39e6562808f7a9ea11320","type":"artist","uuid":"e45d7eaa-a167-430e-af20-92f2f10b3dae"}
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 0x4371e0af27b454248ee9c67a2ce3063a6a19e00c591e81c2b9bfccc4f8c9d292. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e45d7eaa-a167-430e-af20-92f2f10b3dae.json and https://artists.proofprofile.net/proofs/artist/e45d7eaa-a167-430e-af20-92f2f10b3dae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x4371e0af27b454248ee9c67a2ce3063a6a19e00c591e81c2b9bfccc4f8c9d292","name":"Massimo Altieri","registered_at":"2026-06-21T07:54:53Z","symbol":"NIM1868169","token_address":"0xc5234e2f1eae8b743cd39e6562808f7a9ea11320","type":"artist","uuid":"e45d7eaa-a167-430e-af20-92f2f10b3dae"}
album: Rossi: L'Orfeo
  type: MusicAlbum
  date published: 2021-01-15
track: O quam tu pulchra es
  type: MusicRecording
  duration: PT3M59S
  duration ms: 239284
  explicit: false
  by artist: Alessandro Grandi
  by artist: Massimo Altieri
  by artist: Massimo Lombardi
  by artist: Guglielmo Buonsanti
  by artist: i Disinvolti
  in album: Vulnerasti cor meum. Motets from the Song of Songs
    type: MusicAlbum
    date published: 2024-03-15
  popularity: 4
  genre: baroque
  genre: italian-baroque
  isrc code: FR46Y2156204
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T03:47:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x120b807fe58a3c45d90d41d402b3410037ee42ab250673d76c895652e5f8f5b2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960344
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960344
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR46Y2156204
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T04:14:58Z
  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 0x120b807fe58a3c45d90d41d402b3410037ee42ab250673d76c895652e5f8f5b2. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FR46Y2156204.
    date published: 2026-07-31T04:14:58Z
  audio: O quam tu pulchra es
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 163.457
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.118
    additional property: Energy
      type: PropertyValue
      value: 0.144
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.945
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.097
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.054
    additional property: Loudness (dB)
      type: PropertyValue
      value: -21.18
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor