CUERVA
type: MusicGroup
description: Cuerva is a municipality located in the province of Toledo, Castile-La Mancha, Spain. According to the 2006 census (INE), the municipality has a population of 1421 inhabitants. Demographics Refere
popularity: 5
followers: 39
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x68907513e18188947fa8ba38cfe5bdb855a7aaa88fc24e957fed2f1c589cb402
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953962
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953962
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26f58d03-e710-4bf6-bfdc-a2fd6707deb7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/26f58d03-e710-4bf6-bfdc-a2fd6707deb7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/26f58d03-e710-4bf6-bfdc-a2fd6707deb7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T15:03:47Z
additional property: OTSCanonicalRecord
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 0x68907513e18188947fa8ba38cfe5bdb855a7aaa88fc24e957fed2f1c589cb402. Chain 2 (Bitcoin): anchored in block 953962 (2026-06-16T15:03:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/26f58d03-e710-4bf6-bfdc-a2fd6707deb7.json and https://artists.proofprofile.net/proofs/artist/26f58d03-e710-4bf6-bfdc-a2fd6707deb7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T15:03:47Z
album: POR TUS CALLES
  type: MusicAlbum
  date published: 2025-03-26
  track: POR TUS CALLES
    type: MusicRecording
    duration: PT2M32S
    duration ms: 152562
    explicit: false
    by artist: CUERVA
    in album: POR TUS CALLES
      type: MusicAlbum
      date published: 2025-03-26
    isrc code: QZHN72556641
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T23:27:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc2145cd2fc6112556607abbbfddb9f4dee68ddb80eecb06e258102f717c3c899
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957774
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957774
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72556641
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:51:20Z
    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 0xc2145cd2fc6112556607abbbfddb9f4dee68ddb80eecb06e258102f717c3c899. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/QZHN72556641.
      date published: 2026-07-12T23:51:20Z
    audio: POR TUS CALLES
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.937
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.757
      additional property: Energy
        type: PropertyValue
        value: 0.781
      additional property: Speechiness
        type: PropertyValue
        value: 0.145
      additional property: Acousticness
        type: PropertyValue
        value: 0.512
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.127
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.931
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.043
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: En Mitad De Filomena
  type: MusicAlbum
  date published: 2025-04-24
album: Kriptonita
  type: MusicAlbum
  date published: 2025-06-06
album: Resaca y Alcohol
  type: MusicAlbum
  date published: 2025-08-28
album: CULONA
  type: MusicAlbum
  date published: 2025-09-25
  track: CULONA
    type: MusicRecording
    duration: PT3M6S
    duration ms: 186313
    explicit: false
    by artist: CUERVA
    in album: CULONA
      type: MusicAlbum
      date published: 2025-09-25
    isrc code: QZZ7P2598669
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T13:57:17+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3e7aeef0680c9f9a6564eaf1241549a17632d224d4440070f50af941d1c1c97c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ7P2598669
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x3e7aeef0680c9f9a6564eaf1241549a17632d224d4440070f50af941d1c1c97c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZZ7P2598669.
      date published: 2026-07-05T01:12:41Z
    audio: CULONA
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.982
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.736
      additional property: Energy
        type: PropertyValue
        value: 0.83
      additional property: Speechiness
        type: PropertyValue
        value: 0.195
      additional property: Acousticness
        type: PropertyValue
        value: 0.26
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: A las 2 de la Mañana

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.167

Valence (Positivity)
type: PropertyValue
value: 0.779

Loudness (dB)
type: PropertyValue
value: -4.44

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor

A las 2 de la Mañana
type: MusicAlbum
date published: 2025-10-20