Σταμάτης Σπανουδάκης
type: MusicGroup
genre: entehno
genre: laïko
popularity: 10
followers: 1437
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4220b3a6a6da6ebf04fddbb5a8c7c8603880a24f11b475616c9f3664286027de
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a3d8eb1-d70d-4d1d-abe0-111dc9f4caad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a3d8eb1-d70d-4d1d-abe0-111dc9f4caad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4a3d8eb1-d70d-4d1d-abe0-111dc9f4caad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4220b3a6a6da6ebf04fddbb5a8c7c8603880a24f11b475616c9f3664286027de","name":"Σταμάτης Σπανουδάκης","registered_at":"2026-06-16T15:46:33Z","symbol":"NIM1099336","token_address":"0xd51cfb98502b0c09d38f58c488ba12f72557df12","type":"artist","uuid":"4a3d8eb1-d70d-4d1d-abe0-111dc9f4caad"}
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 0x4220b3a6a6da6ebf04fddbb5a8c7c8603880a24f11b475616c9f3664286027de. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a3d8eb1-d70d-4d1d-abe0-111dc9f4caad.json and https://artists.proofprofile.net/proofs/artist/4a3d8eb1-d70d-4d1d-abe0-111dc9f4caad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x4220b3a6a6da6ebf04fddbb5a8c7c8603880a24f11b475616c9f3664286027de","name":"Σταμάτης Σπανουδάκης","registered_at":"2026-06-16T15:46:33Z","symbol":"NIM1099336","token_address":"0xd51cfb98502b0c09d38f58c488ba12f72557df12","type":"artist","uuid":"4a3d8eb1-d70d-4d1d-abe0-111dc9f4caad"}
album: Άγγελος
  type: MusicAlbum
  date published: 1982-01-01
album: Επιτυχίες (Με Λόγια)
  type: MusicAlbum
  date published: 2014-03-25
  track: Η Ακτή
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238133
    explicit: false
    by artist: Σταμάτης Σπανουδάκης
    in album: Επιτυχίες (Με Λόγια)
      type: MusicAlbum
      date published: 2014-03-25
    genre: entehno
    genre: laïko
    isrc code: GRSP19400025
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T11:11:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x61d7d100da1bd364918032295fe09cb818b278c9e5bcd3557bd4d03a217c366c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956738
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956738
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRSP19400025
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T04:47:21Z
    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 0x61d7d100da1bd364918032295fe09cb818b278c9e5bcd3557bd4d03a217c366c. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GRSP19400025.
      date published: 2026-07-05T04:47:21Z
    audio: Η Ακτή
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 134.266
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.62
      additional property: Energy
        type: PropertyValue
        value: 0.587
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.518
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.131
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.634
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.184
      additional property: Key Name
        type: PropertyValue
        value: Eb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Ξαφνικός Έρωτας
    type: MusicRecording
    duration: PT3M2S
    duration ms: 182466
    explicit: false
    by artist: Σταμάτης Σπανουδάκης
    in album: Επιτυχίες (Με Λόγια)
      type: MusicAlbum
      date published: 2014-03-25
    genre: entehno
    genre: laïko
    isrc code: GRSP19400023
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T02:09:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xaaba78bb938dfab39053754a05856e3bbfa0d841bb338a0f2c0b6825ce57a5fd
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958228
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958228
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRSP19400023
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T05:06:41Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaba78bb938dfab39053754a05856e3bbfa0d841bb338a0f2c0b6825ce57a5fd. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:06:41Z), 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/GRSP19400023.
      date published: 2026-07-16T05:06:41Z
    audio: Ξαφνικός Έρωτας
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.861
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.287
      additional property: Energy
        type: PropertyValue
        value: 0.098
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.727
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.061

Valence (Positivity)
type: PropertyValue
value: 0.176

Loudness (dB)
type: PropertyValue
value: -20.523

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major