Milo Harf
type: MusicGroup
popularity: 16
followers: 1398
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa969a8ceca21dac996c2b182467a8a136a5bd17bba870d1ef5aeed061b63db2d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953614
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953614
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15ab7f55-7d91-4344-a25e-ed214c86916f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15ab7f55-7d91-4344-a25e-ed214c86916f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15ab7f55-7d91-4344-a25e-ed214c86916f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T08:40:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa969a8ceca21dac996c2b182467a8a136a5bd17bba870d1ef5aeed061b63db2d","name":"Milo Harf","registered_at":"2026-06-14T06:46:24Z","symbol":"NIM0371425","token_address":"0xb37b1c1d7134e6bfad46c849af8a75e959b5ca46","type":"artist","uuid":"15ab7f55-7d91-4344-a25e-ed214c86916f"}
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 0xa969a8ceca21dac996c2b182467a8a136a5bd17bba870d1ef5aeed061b63db2d. Chain 2 (Bitcoin): anchored in block 953614 (2026-06-14T08:40:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15ab7f55-7d91-4344-a25e-ed214c86916f.json and https://artists.proofprofile.net/proofs/artist/15ab7f55-7d91-4344-a25e-ed214c86916f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T08:40:32Z
  text: {"copyright_id":"0xa969a8ceca21dac996c2b182467a8a136a5bd17bba870d1ef5aeed061b63db2d","name":"Milo Harf","registered_at":"2026-06-14T06:46:24Z","symbol":"NIM0371425","token_address":"0xb37b1c1d7134e6bfad46c849af8a75e959b5ca46","type":"artist","uuid":"15ab7f55-7d91-4344-a25e-ed214c86916f"}
album: Constelación
  type: MusicAlbum
  date published: 2021-09-03
album: Constelación
  type: MusicAlbum
  date published: 2021-09-03
album: Eclipse
  type: MusicAlbum
  date published: 2022-03-18
album: Eclipse
  type: MusicAlbum
  date published: 2022-03-18
album: Eclipse
  type: MusicAlbum
  date published: 2022-03-18
album: Sol
  type: MusicAlbum
  date published: 2022-09-09
album: Sol
  type: MusicAlbum
  date published: 2022-09-09
track: Gato Negro
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236444
  explicit: false
  by artist: MC Davo
  by artist: Milo Harf
  in album: Canciones Mamalonas 2
    type: MusicAlbum
    date published: 2021-10-13
  popularity: 30
  genre: mexican-hip-hop
  genre: trap-mexicano
  isrc code: MXF152100680
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T15:29:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x425f3d859332fe78daf04b961e956fd2030dc0edadb357c295f8e94b3adbec30
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953515
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953515
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF152100680
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T12:53:06Z
  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 0x425f3d859332fe78daf04b961e956fd2030dc0edadb357c295f8e94b3adbec30. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/MXF152100680.
    date published: 2026-06-13T12:53:06Z
  audio: Gato Negro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.875
    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: 0.84
    additional property: Energy
      type: PropertyValue
      value: 0.482
    additional property: Speechiness
      type: PropertyValue
      value: 0.182
    additional property: Acousticness
      type: PropertyValue
      value: 0.227
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.174
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.638
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.816
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Gato Negro
  type: MusicRecording
  duration: PT3M56S
  duration ms: 236444
  explicit: false
  by artist: MC Davo
  by artist: Milo Harf
  in album: Gato Negro
    type: MusicAlbum
    date published: 2021-10-05
  genre: mexican-hip-hop
  genre: trap-mexicano
  isrc code: MXF152100680
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-06T15:29:30+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x425f3d859332fe78daf04b961e956fd2030dc0edadb357c295f8e94b3adbec30
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/MXF152100680
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  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 0x425f3d859332fe78daf04b961e956fd2030dc0edadb357c295f8e94b3adbec30. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/MXF152100680.
    date published: 2026-06-13T13:32:09Z
  audio: Gato Negro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.875
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
    additional property: Danceability
    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.84

Energy
type: PropertyValue
value: 0.482

Speechiness
type: PropertyValue
value: 0.182

Acousticness
type: PropertyValue
value: 0.227

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.174

Valence (Positivity)
type: PropertyValue
value: 0.638

Loudness (dB)
type: PropertyValue
value: -11.816

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major