15 50
type: MusicGroup
genre: entehno
genre: laïko
popularity: 17
followers: 1832
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4047573a40368aab204e7609d0fb8cc64d55a8b18b635a4cf63a34e8e751b0d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953592
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953592
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/026c12e5-704d-4435-b20c-24b3cd3549a3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/026c12e5-704d-4435-b20c-24b3cd3549a3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/026c12e5-704d-4435-b20c-24b3cd3549a3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T05:36:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4047573a40368aab204e7609d0fb8cc64d55a8b18b635a4cf63a34e8e751b0d2","name":"15 50","registered_at":"2026-06-14T04:40:31Z","symbol":"NIM0341428","token_address":"0xad83a68a8ee968d1a9dc577108ef406093375cdf","type":"artist","uuid":"026c12e5-704d-4435-b20c-24b3cd3549a3"}
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 0x4047573a40368aab204e7609d0fb8cc64d55a8b18b635a4cf63a34e8e751b0d2. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/026c12e5-704d-4435-b20c-24b3cd3549a3.json and https://artists.proofprofile.net/proofs/artist/026c12e5-704d-4435-b20c-24b3cd3549a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T05:36:59Z
  text: {"copyright_id":"0x4047573a40368aab204e7609d0fb8cc64d55a8b18b635a4cf63a34e8e751b0d2","name":"15 50","registered_at":"2026-06-14T04:40:31Z","symbol":"NIM0341428","token_address":"0xad83a68a8ee968d1a9dc577108ef406093375cdf","type":"artist","uuid":"026c12e5-704d-4435-b20c-24b3cd3549a3"}
album: Osa boreis + Anapneo
  type: MusicAlbum
  date published: 2008
album: Osa Boreis
  type: MusicAlbum
  date published: 2008-07-11
album: Osa Boreis
  type: MusicAlbum
  date published: 2008-07-11
  track: Akoma Mia For A / Den Eisai Edo
    type: MusicRecording
    duration: PT4M14S
    duration ms: 254053
    explicit: false
    by artist: 15 50
    in album: Osa Boreis
      type: MusicAlbum
      date published: 2008-07-11
    genre: entehno
    genre: laïko
    isrc code: GRM010700228
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T20:57:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x61d3cea98c619995b0409c7e7ac3363eeec482661f7cc28d7729ab14c6f32b79
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959058
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959058
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRM010700228
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T21:09:36Z
    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 0x61d3cea98c619995b0409c7e7ac3363eeec482661f7cc28d7729ab14c6f32b79. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/GRM010700228.
      date published: 2026-07-21T21:09:36Z
    audio: Akoma Mia For A / Den Eisai Edo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.998
      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: 0.628
      additional property: Energy
        type: PropertyValue
        value: 0.835
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.049
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.203
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.23
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.471
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Agries Nixtes
  type: MusicAlbum
  date published: 2010-06-15
album: Agries Nixtes
  type: MusicAlbum
  date published: 2010-06-15
album: Agries Nixtes
  type: MusicAlbum
  date published: 2011-03-18
  track: San Star Tou Cinema
    type: MusicRecording
    duration: PT3M1S
    duration ms: 181170
    explicit: false
    by artist: 15 50
    in album: Agries Nixtes
      type: MusicAlbum
      date published: 2011-03-18
    genre: entehno
    genre: laïko
    isrc code: GRHV11100030
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T18:06:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xda91a94677e9321e02656960b1fa3df92e7eae59063c90d5b995334b8f832e96
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957891
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRHV11100030
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T18:21:04Z
    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 0xda91a94677e9321e02656960b1fa3df92e7eae59063c90d5b995334b8f832e96. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GRHV11100030.
      date published: 2026-07-13T18:21:04Z
    audio: San Star Tou Cinema
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 143.052
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.571
      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: Na Kaigomouna
album: Disi
album: Dysi
album: An Yparhei Kati Neo Sti Zoi Sou
album: Gennithikame Na Petaxoume Mazi
album: Erotas Prosfygas (Ola Einai Dromos)
album: Venzinadiko
album: Ego
album: Ase Me Na S' Agapao
album: Prosopika
album: Exomologisi
album: Patra
album: Patra Zo Ston Erota Sou
album: Esy Ekei
album: Kavatza
album: Eimai Edo

Energy
type: PropertyValue
value: 0.819

Speechiness
type: PropertyValue
value: 0.057

Acousticness
type: PropertyValue
value: 0.003

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.343

Valence (Positivity)
type: PropertyValue
value: 0.501

Loudness (dB)
type: PropertyValue
value: -2.662

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor

Agries Nixtes
type: MusicAlbum
date published: 2011-03-18

Na Kaigomouna
type: MusicAlbum
date published: 2013-12-19

Na Kaigomouna
type: MusicAlbum
date published: 2013-12-19

Disi
type: MusicAlbum
date published: 2015-04-02

Dysi
type: MusicAlbum
date published: 2015-04-02

An Yparhei Kati Neo Sti Zoi Sou
type: MusicAlbum
date published: 2015-11-18

Gennithikame Na Petaxoume Mazi
type: MusicAlbum
date published: 2017-10-05

Gennithikame Na Petaxoume Mazi
type: MusicAlbum
date published: 2017-10-05

Erotas Prosfygas (Ola Einai Dromos)
type: MusicAlbum
date published: 2018-03-29

Erotas Prosfygas (Ola Einai Dromos)
type: MusicAlbum
date published: 2018-03-29

Venzinadiko
type: MusicAlbum
date published: 2018-06-22

Venzinadiko
type: MusicAlbum
date published: 2018-06-22

Ego
type: MusicAlbum
date published: 2018-08-02
track: To Palio Mou Palto
  type: MusicRecording
  duration: PT3M37S
  duration ms: 217680
  explicit: false
  by artist: 15 50
  in album: Ego
    type: MusicAlbum
    date published: 2018-08-02
  genre: entehno
  genre: laïko
  isrc code: GRPT11800049
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T18:03:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xee9e1b4fd7ca0fe22917078cc8e89487ee7917673f67c4714ab7ce9ed8c1a69d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956728
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956728
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRPT11800049
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:43:49Z
  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 0xee9e1b4fd7ca0fe22917078cc8e89487ee7917673f67c4714ab7ce9ed8c1a69d. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GRPT11800049.
    date published: 2026-07-05T01:43:49Z
  audio: To Palio Mou Palto
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 126.117
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.462
    additional property: Energy
      type: PropertyValue
      value: 0.677
    additional property: Speechiness
      type: PropertyValue
      value: 0.056
    additional property: Acousticness
      type: PropertyValue
      value: 0.275
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.142
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.595
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Ase Me Na S' Agapao
type: MusicAlbum
date published: 2020-01-20

Prosopika
type: MusicAlbum
date published: 2020-05-11

Exomologisi
type: MusicAlbum
date published: 2021-05-28

Patra
type: MusicAlbum
date published: 2022-06-24

Patra Zo Ston Erota Sou
type: MusicAlbum
date published: 2023-02-08

Esy Ekei
type: MusicAlbum
date published: 2024-01-16
track: Esy Ekei
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256631
  explicit: false
  by artist: 15 50
  in album: Esy Ekei
    type: MusicAlbum
    date published: 2024-01-16
  genre: entehno
  genre: laïko
  isrc code: GRPT12400003
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T10:47:00+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2702533ec9dbd06954b1ec2fb167a4dcb0c74a292963f98e67221e1ad0e19563
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958541
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958541
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRPT12400003
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T11:37:54Z
  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 0x2702533ec9dbd06954b1ec2fb167a4dcb0c74a292963f98e67221e1ad0e19563. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/GRPT12400003.
    date published: 2026-07-18T11:37:54Z
  audio: Esy Ekei
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.905
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.314
    additional property: Energy
      type: PropertyValue
      value: 0.802
    additional property: Speechiness
      type: PropertyValue
      value: 0.061
    additional property: Acousticness
      type: PropertyValue
      value: 0.011
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.199
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.147
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.192
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Kavatza
type: MusicAlbum
date published: 2024-06-05
track: Kavatza
  type: MusicRecording
  duration: PT4M8S
  duration ms: 248316
  explicit: false
  by artist: 15 50
  in album: Kavatza
    type: MusicAlbum
    date published: 2024-06-05
  genre: entehno
  genre: laïko
  isrc code: GRPT12400077
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T06:47:51+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe9c450afcf82f4d1ca3dbd4ff2fbbf7c69f71e5ab2841db8271335f3de42a86f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958380
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958380
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GRPT12400077
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T07:07:02Z
  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 0xe9c450afcf82f4d1ca3dbd4ff2fbbf7c69f71e5ab2841db8271335f3de42a86f. Chain 2 (Bitcoin): anchored in block 958380 (2026-07-17T07:07:02Z), 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/GRPT12400077.
    date published: 2026-07-17T07:07:02Z
  audio: Kavatza
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.042
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.655
    additional property: Energy
      type: PropertyValue
      value: 0.796
    additional property: Speechiness
      type: PropertyValue
      value: 0.032
    additional property: Acousticness
      type: PropertyValue
      value: 0.103
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.324
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.216
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.488
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Eimai Edo
type: MusicAlbum
date published: 2025-04-10
track: Eimai Edo
  type: MusicRecording
  duration: PT4M30S
  duration ms: 270620
  explicit: false
  by artist: 15 50
  in album: Eimai Edo
    type: MusicAlbum
    date published: 2025-04-10
  genre: entehno
  genre: laïko
  isrc code: GRPT12500093
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T15:35:24+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x415ea61609869e93bbb66e6d8e357ac93a917638b8f0c64d9b1921157538e085
  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/GRPT12500093
  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 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 0x415ea61609869e93bbb66e6d8e357ac93a917638b8f0c64d9b1921157538e085. 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/GRPT12500093.
    date published: 2026-07-17T19:12:23Z
  audio: Eimai Edo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 144.961
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.547
    additional property: Energy
      type: PropertyValue
      value: 0.838
    additional property: Speechiness
      type: PropertyValue
      value: 0.05
    additional property: Acousticness
      type: PropertyValue
      value: 0.021
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.086
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.166
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.124
    additional property: Key Name
      type: PropertyValue
      value: F
    additional property: Mode Name
      type: PropertyValue
      value: Minor