Rost JM
type: MusicGroup
popularity: 2
followers: 138
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4cf81b937ee2675ddc19a8c3dc021f608e5c5ff34f2ef266a5c1369f1fdbf354
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd046ef9-0740-4c27-8af5-de3ba99da73a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cd046ef9-0740-4c27-8af5-de3ba99da73a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cd046ef9-0740-4c27-8af5-de3ba99da73a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4cf81b937ee2675ddc19a8c3dc021f608e5c5ff34f2ef266a5c1369f1fdbf354","name":"Rost JM","registered_at":"2026-06-20T23:40:18Z","symbol":"NIM1751976","token_address":"0x372960681a2812a29777844501f0b75be967cd85","type":"artist","uuid":"cd046ef9-0740-4c27-8af5-de3ba99da73a"}
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 0x4cf81b937ee2675ddc19a8c3dc021f608e5c5ff34f2ef266a5c1369f1fdbf354. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cd046ef9-0740-4c27-8af5-de3ba99da73a.json and https://artists.proofprofile.net/proofs/artist/cd046ef9-0740-4c27-8af5-de3ba99da73a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x4cf81b937ee2675ddc19a8c3dc021f608e5c5ff34f2ef266a5c1369f1fdbf354","name":"Rost JM","registered_at":"2026-06-20T23:40:18Z","symbol":"NIM1751976","token_address":"0x372960681a2812a29777844501f0b75be967cd85","type":"artist","uuid":"cd046ef9-0740-4c27-8af5-de3ba99da73a"}
album: En la oscuridad
  type: MusicAlbum
  date published: 2019-05-14
album: Etéreo
  type: MusicAlbum
  date published: 2019-08-27
album: Cada vez que respiras
  type: MusicAlbum
  date published: 2019-10-15
album: Otra noche más
  type: MusicAlbum
  date published: 2019-11-09
album: Sirenas
  type: MusicAlbum
  date published: 2020-02-19
album: Ilusión de niño
  type: MusicAlbum
  date published: 2020-03-01
album: Escapa
  type: MusicAlbum
  date published: 2020-03-31
album: Superhéroe
  type: MusicAlbum
  date published: 2020-05-08
album: Intro
  type: MusicAlbum
  date published: 2020-09-15
album: Necesito aire
  type: MusicAlbum
  date published: 2020-11-06
album: Boomerang
  type: MusicAlbum
  date published: 2021-02-22
  track: Boomerang
album: Reflejo
  type: MusicAlbum
  date published: 2021-03-18
album: Cuando escribo
  type: MusicAlbum
  date published: 2021-04-29
album: Vuelta a recordar
  type: MusicAlbum
  date published: 2021-09-01
album: Escapaste de mis brazos
  type: MusicAlbum
  date published: 2021-11-15
album: Hablándote
  type: MusicAlbum
  date published: 2022-02-06

Boomerang
type: MusicRecording
duration: PT2M53S
duration ms: 173581
explicit: false
by artist: Rost JM
in album: Boomerang
  type: MusicAlbum
  date published: 2021-02-22
isrc code: QZDA42183663
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-06T23:51:38+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7f44414d51bb1d166412b7dad5921401680077fa3a90fe2b43ebee8f728e53a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA42183663
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0x7f44414d51bb1d166412b7dad5921401680077fa3a90fe2b43ebee8f728e53a5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZDA42183663.
  date published: 2026-07-08T03:20:19Z
audio: Boomerang
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 114.617
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.792
  additional property: Energy
    type: PropertyValue
    value: 0.872
  additional property: Speechiness
    type: PropertyValue
    value: 0.116
  additional property: Acousticness
    type: PropertyValue
    value: 0.326
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.094
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.466
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.055
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor