Stefano Ratchev
type: MusicGroup
popularity: 3
followers: 29
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51ab36204333c19725a255a1f2d71740cd1064e2b4c881510d4cb3173295dcbf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43b7427d-9923-42fc-aae1-8170fd9541ba.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43b7427d-9923-42fc-aae1-8170fd9541ba.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/43b7427d-9923-42fc-aae1-8170fd9541ba
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x51ab36204333c19725a255a1f2d71740cd1064e2b4c881510d4cb3173295dcbf","name":"Stefano Ratchev","registered_at":"2026-06-16T13:10:08Z","symbol":"NIM1062006","token_address":"0x268ab7c8ae1f4168d6db4b1859c0f5eb0770cf93","type":"artist","uuid":"43b7427d-9923-42fc-aae1-8170fd9541ba"}
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 0x51ab36204333c19725a255a1f2d71740cd1064e2b4c881510d4cb3173295dcbf. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43b7427d-9923-42fc-aae1-8170fd9541ba.json and https://artists.proofprofile.net/proofs/artist/43b7427d-9923-42fc-aae1-8170fd9541ba.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x51ab36204333c19725a255a1f2d71740cd1064e2b4c881510d4cb3173295dcbf","name":"Stefano Ratchev","registered_at":"2026-06-16T13:10:08Z","symbol":"NIM1062006","token_address":"0x268ab7c8ae1f4168d6db4b1859c0f5eb0770cf93","type":"artist","uuid":"43b7427d-9923-42fc-aae1-8170fd9541ba"}
album: Gianni e le donne (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2011-03-08
album: Gianni e le donne
  type: MusicAlbum
  date published: 2011-03-08
album: La foresta di ghiaccio
  type: MusicAlbum
  date published: 2014-10-23
album: La foresta di ghiaccio (Original Motion Picture Soundtrack)
  type: MusicAlbum
  date published: 2014-10-23
track: Demone dentro

Demone dentro
type: MusicRecording
duration: PT2M2S
duration ms: 122133
explicit: false
by artist: Vadalà
by artist: Stefano Ratchev
in album: Dracula (Musiche Originali dello Spettacolo Teatrale di Sergio Rubini)
  type: MusicAlbum
  date published: 2019-07-07
isrc code: ITR441900570
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-25T13:40:09+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x113300987f849ddb706a5564cee28fbab8ee3b88c24ea3356cae69985ebaf434
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/ITR441900570
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 0x113300987f849ddb706a5564cee28fbab8ee3b88c24ea3356cae69985ebaf434. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/ITR441900570.
  date published: 2026-07-02T11:38:34Z
audio: Demone dentro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 101.694
  additional property: Musical Key
    type: PropertyValue
    value: 3
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.18
  additional property: Energy
    type: PropertyValue
    value: 0.029
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.945
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.304
  additional property: Liveness
    type: PropertyValue
    value: 0.08
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.039
  additional property: Loudness (dB)
    type: PropertyValue
    value: -25.04
  additional property: Key Name
    type: PropertyValue
    value: Eb
  additional property: Mode Name
    type: PropertyValue
    value: Major