Ferna
type: MusicGroup
genre: latin indie
genre: mexican indie
description: Ferna is a municipality in the district of Eichsfeld in Thuringia, Germany. References Category:Eichsfeld (district)
popularity: 11
followers: 697
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7cb2eee234d0229f7fc7dc4a5e3f54bc1160217db36281a2e6412f1797cfd7aa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953630
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953630
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30691d96-7d13-4c1b-ac3a-ce8b6f966c67.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30691d96-7d13-4c1b-ac3a-ce8b6f966c67.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30691d96-7d13-4c1b-ac3a-ce8b6f966c67
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T12:06:27Z
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 0x7cb2eee234d0229f7fc7dc4a5e3f54bc1160217db36281a2e6412f1797cfd7aa. Chain 2 (Bitcoin): anchored in block 953630 (2026-06-14T12:06:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30691d96-7d13-4c1b-ac3a-ce8b6f966c67.json and https://artists.proofprofile.net/proofs/artist/30691d96-7d13-4c1b-ac3a-ce8b6f966c67.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:06:27Z
album: Caracoles
  type: MusicAlbum
  date published: 2022-07-27
album: Caracoles
  type: MusicAlbum
  date published: 2022-07-27
album: Luna Rosa
  type: MusicAlbum
  date published: 2022-12-09
album: Peleas
  type: MusicAlbum
  date published: 2023-03-10
album: ¿Qué Cuentas? / re: Nada
  type: MusicAlbum
  date published: 2023-04-21
album: Lección
  type: MusicAlbum
  date published: 2023-06-16
album: Yo, Ferna
  type: MusicAlbum
  date published: 2023-06-30
  track: Caracoles
    type: MusicRecording
    duration: PT3M1S
    duration ms: 181647
    explicit: false
    by artist: Ferna
    in album: Yo, Ferna
      type: MusicAlbum
      date published: 2023-06-30
    genre: latin indie
    genre: mexican indie
    isrc code: USHM22264833
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T12:22:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6a68157a94b50ddeed5dfbcb2b2d216087ab71461014a6138e43137eeb9f99ee
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958444
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958444
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22264833
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    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 0x6a68157a94b50ddeed5dfbcb2b2d216087ab71461014a6138e43137eeb9f99ee. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM22264833.
      date published: 2026-07-17T19:12:23Z
    audio: Caracoles
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.978
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.818
      additional property: Energy
        type: PropertyValue
        value: 0.458
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.577
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.879
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.478
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.76
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major