Valentine
type: MusicGroup
description: A valentine is a card or gift given on Valentine's Day, or one's sweetheart. Valentine or Valentines may also refer to: People and fictional characters Valentine (name), a given name and a surname,
popularity: 5
followers: 154
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xacbcbbd89a31168b5903ac3f22ccf125bb381a16c4b31ad23af46562c0ed40c1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953978
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953978
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c337df4-b895-4dba-aeb0-3681f8534b54.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c337df4-b895-4dba-aeb0-3681f8534b54.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2c337df4-b895-4dba-aeb0-3681f8534b54
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:11:18Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbcbbd89a31168b5903ac3f22ccf125bb381a16c4b31ad23af46562c0ed40c1. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c337df4-b895-4dba-aeb0-3681f8534b54.json and https://artists.proofprofile.net/proofs/artist/2c337df4-b895-4dba-aeb0-3681f8534b54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
album: Canta Sobre Mí
  type: MusicAlbum
  date published: 2025-08-28
  track: Canta Sobre Mí
    type: MusicRecording
    duration: PT5M2S
    duration ms: 302647
    explicit: false
    by artist: Valentine
    in album: Canta Sobre Mí
      type: MusicAlbum
      date published: 2025-08-28
    isrc code: QZNJY2564767
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T14:13:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x094cdd2f9c399e2c76028b0d692c22950bb8cc0a2ab3183f7f9054105ad44836
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958300
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958300
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2564767
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T23:02:34Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094cdd2f9c399e2c76028b0d692c22950bb8cc0a2ab3183f7f9054105ad44836. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T23:02:34Z), 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/QZNJY2564767.
      date published: 2026-07-16T23:02:34Z
    audio: Canta Sobre Mí
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.791
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.499
      additional property: Energy
        type: PropertyValue
        value: 0.187
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.695
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.174
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.152
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Sing over Me
  type: MusicAlbum
  date published: 2025-10-16