Katerina Topazi
type: MusicGroup
genre: laïko
popularity: 13
followers: 497
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4223a9572cf66758c6dd58bc29e99c6d9585b8ab19702b450560ed3adfc0f9fe
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa09356f-577f-4359-9563-614795c7725f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa09356f-577f-4359-9563-614795c7725f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fa09356f-577f-4359-9563-614795c7725f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4223a9572cf66758c6dd58bc29e99c6d9585b8ab19702b450560ed3adfc0f9fe","name":"Katerina Topazi","registered_at":"2026-06-15T06:42:29Z","symbol":"NIM0714104","token_address":"0x39978b304b64fffeb0bbd678deb53970c6220404","type":"artist","uuid":"fa09356f-577f-4359-9563-614795c7725f"}
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 0x4223a9572cf66758c6dd58bc29e99c6d9585b8ab19702b450560ed3adfc0f9fe. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa09356f-577f-4359-9563-614795c7725f.json and https://artists.proofprofile.net/proofs/artist/fa09356f-577f-4359-9563-614795c7725f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x4223a9572cf66758c6dd58bc29e99c6d9585b8ab19702b450560ed3adfc0f9fe","name":"Katerina Topazi","registered_at":"2026-06-15T06:42:29Z","symbol":"NIM0714104","token_address":"0x39978b304b64fffeb0bbd678deb53970c6220404","type":"artist","uuid":"fa09356f-577f-4359-9563-614795c7725f"}
album: Tha Gyrisei
  type: MusicAlbum
  date published: 2003-01-01
album: Paralliles Zoes
  type: MusicAlbum
  date published: 2007-02-14
album: Paralliles Zoes
  type: MusicAlbum
  date published: 2007-02-14
album: Matia Mou Erotika
  type: MusicAlbum
  date published: 2011-01-01
  track: Kai Pou S' Agapo Ti Ftaio
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209026
    explicit: false
    by artist: Katerina Topazi
    in album: Matia Mou Erotika
      type: MusicAlbum
      date published: 2011-01-01
    genre: laïko
    isrc code: GRER19400067
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T21:16:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xba0f483a438d13a3f374fba2ee72d8c174253583abe920d740fff131276cb846
    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/GRER19400067
    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 0xba0f483a438d13a3f374fba2ee72d8c174253583abe920d740fff131276cb846. 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/GRER19400067.
      date published: 2026-07-05T01:12:41Z
    audio: Kai Pou S' Agapo Ti Ftaio
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.945
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.746
      additional property: Energy
        type: PropertyValue
        value: 0.615
      additional property: Speechiness
        type: PropertyValue
        value: 0.033
      additional property: Acousticness
        type: PropertyValue
        value: 0.302
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.911
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.389
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Eho Mono Esena
  type: MusicAlbum
  date published: 2011-01-01
album: Matia Mou Erotika
  type: MusicAlbum
  date published: 2020-01-24
album: Mia Mikri Killida
  type: MusicAlbum
  date published: 2022-05-09
album: Machairia
  type: MusicAlbum
  date published: 2022-05-09
  track: Mi Zitas N' Allaxo Tropo
    type: MusicRecording
    duration: PT4M1S
    duration ms: 241160
    explicit: false
    by artist: Katerina Topazi
    in album: Machairia
      type: MusicAlbum
      date published: 2022-05-09
    genre: laïko
    isrc code: GRMEM2200106
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T01:27:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x761ee9bb84ca7b6f83f5a79de1257dbca5854e64d755bc0809fccafaf1f57166
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959087
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959087
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRMEM2200106
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T02:05:55Z
    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 0x761ee9bb84ca7b6f83f5a79de1257dbca5854e64d755bc0809fccafaf1f57166. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/GRMEM2200106.
      date published: 2026-07-22T02:05:55Z
    audio: Mi Zitas N' Allaxo Tropo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.993
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      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
album: Chanomai Kai Ypofero

Danceability
type: PropertyValue
value: 0.784

Energy
type: PropertyValue
value: 0.711

Speechiness
type: PropertyValue
value: 0.054

Acousticness
type: PropertyValue
value: 0.149

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.041

Valence (Positivity)
type: PropertyValue
value: 0.637

Loudness (dB)
type: PropertyValue
value: -8.004

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Minor

Chanomai Kai Ypofero
type: MusicAlbum
date published: 2022-05-09