Walter "Nego" Haedo
type: MusicGroup
popularity: 3
followers: 60
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa073f88cfb6015aad562dc7e26765afb028d9f37d75d4b4c47fcd5f4173f402c
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/60106145-a2ea-4f9f-9698-09064cfeeb2e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/60106145-a2ea-4f9f-9698-09064cfeeb2e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/60106145-a2ea-4f9f-9698-09064cfeeb2e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa073f88cfb6015aad562dc7e26765afb028d9f37d75d4b4c47fcd5f4173f402c","name":"Walter \"Nego\" Haedo","registered_at":"2026-06-16T23:09:02Z","symbol":"NIM1204902","token_address":"0x6868d83130d801b00d4a0ffcb7eaf0919c9a60f3","type":"artist","uuid":"60106145-a2ea-4f9f-9698-09064cfeeb2e"}
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 0xa073f88cfb6015aad562dc7e26765afb028d9f37d75d4b4c47fcd5f4173f402c. 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/60106145-a2ea-4f9f-9698-09064cfeeb2e.json and https://artists.proofprofile.net/proofs/artist/60106145-a2ea-4f9f-9698-09064cfeeb2e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa073f88cfb6015aad562dc7e26765afb028d9f37d75d4b4c47fcd5f4173f402c","name":"Walter \"Nego\" Haedo","registered_at":"2026-06-16T23:09:02Z","symbol":"NIM1204902","token_address":"0x6868d83130d801b00d4a0ffcb7eaf0919c9a60f3","type":"artist","uuid":"60106145-a2ea-4f9f-9698-09064cfeeb2e"}
track: Voces
track: Se Me Cae un Huevo

Voces
type: MusicRecording
duration: PT7M0S
duration ms: 420200
explicit: false
by artist: Pepe Gonzalez
by artist: Urbano Moraes
by artist: Walter "Nego" Haedo
by artist: Domingo
by artist: Catalina
in album: Febrero
  type: MusicAlbum
  date published: 1998-07-13
popularity: 13
isrc code: UYS059800551
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T06:19:51+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef3c4e4f440e4265737a3f7f4453eba2fb7451cad52e2ceb388a87993fb8d12c
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/UYS059800551
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 0xef3c4e4f440e4265737a3f7f4453eba2fb7451cad52e2ceb388a87993fb8d12c. 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/UYS059800551.
  date published: 2026-07-02T05:09:12Z
audio: Voces
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 115.323
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.576
  additional property: Energy
    type: PropertyValue
    value: 0.863
  additional property: Speechiness
    type: PropertyValue
    value: 0.034
  additional property: Acousticness
    type: PropertyValue
    value: 0.602
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.106
  additional property: Liveness
    type: PropertyValue
    value: 0.377
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.802
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.738
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Se Me Cae un Huevo
type: MusicRecording
duration: PT5M13S
duration ms: 313773
explicit: false
by artist: Pepe Gonzalez
by artist: Ruben Rada
by artist: Mariano Barroso
by artist: Walter "Nego" Haedo
in album: Febrero
  type: MusicAlbum
  date published: 1998-07-13
popularity: 1
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f045b584652ef55d605fac5040747d0b948e38d785eae0d601c2a0a130c8ffd. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/UYS059800555.
  date published: 2026-07-31T15:20:33Z
audio: Se Me Cae un Huevo
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.246
  additional property: Musical Key
    type: PropertyValue
    value: 11
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.688
  additional property: Energy
    type: PropertyValue
    value: 0.735
  additional property: Speechiness
    type: PropertyValue
    value: 0.042
  additional property: Acousticness
    type: PropertyValue
    value: 0.066
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.008
  additional property: Liveness
    type: PropertyValue
    value: 0.371
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.911
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.42
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: UYS059800555
additional property: CopyrightID
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: 960419
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-31T15:20:33+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UYS059800555
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960419
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960419
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T15:20:33+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 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