Manuel Contrera
type: MusicGroup
popularity: 2
followers: 299
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0b3f06f5e90775a939bbdef414221452594b070a6736b684dcdf001395702dbe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2823f96-371b-4f7c-b954-fa222a3001ac.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c2823f96-371b-4f7c-b954-fa222a3001ac.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c2823f96-371b-4f7c-b954-fa222a3001ac
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0b3f06f5e90775a939bbdef414221452594b070a6736b684dcdf001395702dbe","name":"Manuel Contrera","registered_at":"2026-06-20T20:12:30Z","symbol":"NIM1702438","token_address":"0x97815a792b93cf327675cf853ffd47458f509651","type":"artist","uuid":"c2823f96-371b-4f7c-b954-fa222a3001ac"}
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 0x0b3f06f5e90775a939bbdef414221452594b070a6736b684dcdf001395702dbe. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2823f96-371b-4f7c-b954-fa222a3001ac.json and https://artists.proofprofile.net/proofs/artist/c2823f96-371b-4f7c-b954-fa222a3001ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x0b3f06f5e90775a939bbdef414221452594b070a6736b684dcdf001395702dbe","name":"Manuel Contrera","registered_at":"2026-06-20T20:12:30Z","symbol":"NIM1702438","token_address":"0x97815a792b93cf327675cf853ffd47458f509651","type":"artist","uuid":"c2823f96-371b-4f7c-b954-fa222a3001ac"}
album: Puerto Sur
  type: MusicAlbum
  date published: 2018-07-21
album: Quarktetris
  type: MusicAlbum
  date published: 2021-08-23
album: Motivos
  type: MusicAlbum
  date published: 2021-08-23
album: Quarktetris
  type: MusicAlbum
  date published: 2021-08-23
album: Motivos
  type: MusicAlbum
  date published: 2021-08-23
album: Cantando al viento
  type: MusicAlbum
  date published: 2021-09-17
album: Cantando al viento
  type: MusicAlbum
  date published: 2021-09-17
album: Viejas Nuevas Canciones
  type: MusicAlbum
  date published: 2024-02-14
track: El Miedo No Es la Forma
  type: MusicRecording
  duration: PT2M55S
  duration ms: 175888
  explicit: false
  by artist: No A La Reforma
  by artist: Anaí de Álava
  by artist: Belén Muñoz
  by artist: Eli Almic
  by artist: Federico Motta
  by artist: Felipe Fuentes
  by artist: Felipe Sanguinetti
  by artist: Guillermo Olivera
  by artist: Luana González
  by artist: Lucián Echeverría
  by artist: Maite Scala
  by artist: Maite de Álava
  by artist: Manuel Ulfe
  by artist: Tomás Rossi
  by artist: Avr
  by artist: Alejandro Balbis
  by artist: Angela Álves
  by artist: CHN
  by artist: Cecilia Rodríguez
  by artist: DJ RC
  by artist: Edu Lombardo
  by artist: Jorge Nasser
  by artist: Juan Olivera
  by artist: La Melaza
  by artist: Luis Gutiérrez
  by artist: Manuel Contrera
  by artist: Martín Ibarra
  by artist: Papina de Palma
  by artist: Rodra
  by artist: Santi Mostaffa
  by artist: Viki Style
  in album: El Miedo No Es la Forma
    type: MusicAlbum
    date published: 2019-10-01
  isrc code: GBMA21867333
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T18:17:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcc8edc47c5c6c066edb7e71c0227c5cb6957c8740bda7e602071343534c46b0c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957064
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957064
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBMA21867333
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T16:43:08Z
  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 0xcc8edc47c5c6c066edb7e71c0227c5cb6957c8740bda7e602071343534c46b0c. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/GBMA21867333.
    date published: 2026-07-07T16:43:08Z
  audio: El Miedo No Es la Forma
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 116.026
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.737
    additional property: Energy
      type: PropertyValue
      value: 0.721
    additional property: Speechiness
      type: PropertyValue
      value: 0.26
    additional property: Acousticness
      type: PropertyValue
      value: 0.094
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.312
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.7
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.434
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor