Federica Matera
type: MusicGroup
genre: italian singer-songwriter
popularity: 10
followers: 355
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3a1747205f2d1c7639c0706f30c757bf3b72b3c997eebbebb2287f0b6e1e5494
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953963
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953963
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27d72e3d-8f50-43d3-a425-6159277c9a52.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/27d72e3d-8f50-43d3-a425-6159277c9a52.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/27d72e3d-8f50-43d3-a425-6159277c9a52
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T15:12:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3a1747205f2d1c7639c0706f30c757bf3b72b3c997eebbebb2287f0b6e1e5494","name":"Federica Matera","registered_at":"2026-06-16T03:29:28Z","symbol":"NIM0923387","token_address":"0x8c6bf2cf4f736d8dbca9ef2750d1716ca75ef81b","type":"artist","uuid":"27d72e3d-8f50-43d3-a425-6159277c9a52"}
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 0x3a1747205f2d1c7639c0706f30c757bf3b72b3c997eebbebb2287f0b6e1e5494. Chain 2 (Bitcoin): anchored in block 953963 (2026-06-16T15:12:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/27d72e3d-8f50-43d3-a425-6159277c9a52.json and https://artists.proofprofile.net/proofs/artist/27d72e3d-8f50-43d3-a425-6159277c9a52.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T15:12:33Z
  text: {"copyright_id":"0x3a1747205f2d1c7639c0706f30c757bf3b72b3c997eebbebb2287f0b6e1e5494","name":"Federica Matera","registered_at":"2026-06-16T03:29:28Z","symbol":"NIM0923387","token_address":"0x8c6bf2cf4f736d8dbca9ef2750d1716ca75ef81b","type":"artist","uuid":"27d72e3d-8f50-43d3-a425-6159277c9a52"}
album: Ti prometto
  type: MusicAlbum
  date published: 2019-12-17
album: L'esperienza del volo
  type: MusicAlbum
  date published: 2022-05-31
album: ATLAS
  type: MusicAlbum
  date published: 2023-06-13
album: OMBRE
  type: MusicAlbum
  date published: 2023-11-21
album: FEBBRAIO
  type: MusicAlbum
  date published: 2024-02-29
  track: FEBBRAIO
    type: MusicRecording
    duration: PT2M58S
    duration ms: 178560
    explicit: false
    by artist: Federica Matera
    in album: FEBBRAIO
      type: MusicAlbum
      date published: 2024-02-29
    genre: italian singer-songwriter
    isrc code: ITC6I2300106
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T02:39:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8f1d41b8ac7b65a733a983478b5c279c1167172fc52d125360090fb6f0f17cc5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958489
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958489
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ITC6I2300106
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:13:26Z
    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 0x8f1d41b8ac7b65a733a983478b5c279c1167172fc52d125360090fb6f0f17cc5. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/ITC6I2300106.
      date published: 2026-07-18T04:13:26Z
    audio: FEBBRAIO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.978
      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: 0.629
      additional property: Energy
        type: PropertyValue
        value: 0.558
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.212
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.044
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.227
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.058
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ORIGAMI
  type: MusicAlbum
  date published: 2024-05-28
album: GIÙ
  type: MusicAlbum
  date published: 2024-12-20
  track: GIÙ
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182000
    explicit: false
    by artist: Federica Matera
    in album: GIÙ
      type: MusicAlbum
      date published: 2024-12-20
    genre: italian singer-songwriter
    isrc code: TCAJB2493069
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T14:00:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xea17989336eb97544fba4193a178d88c814b6bba800d1de2faabc66c04812d46
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958166
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958166
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJB2493069
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T15:55:19Z
    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 0xea17989336eb97544fba4193a178d88c814b6bba800d1de2faabc66c04812d46. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCAJB2493069.
      date published: 2026-07-15T15:55:19Z
    audio: GIÙ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 159.956
      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: 0.549
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Energy
type: PropertyValue
value: 0.934

Speechiness
type: PropertyValue
value: 0.06

Acousticness
type: PropertyValue
value: 0.004

Instrumentalness
type: PropertyValue
value: 0.005

Liveness
type: PropertyValue
value: 0.155

Valence (Positivity)
type: PropertyValue
value: 0.357

Loudness (dB)
type: PropertyValue
value: -4.9

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major