Kostrok
type: MusicGroup
popularity: 17
followers: 3344
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc0fbd88d86daf76daf3b803cdf224abda01eb64a85b851d2970c5787d127f83a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953827
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953827
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4d87f75-4def-4664-8c66-cbec7a004824.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f4d87f75-4def-4664-8c66-cbec7a004824.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f4d87f75-4def-4664-8c66-cbec7a004824
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T19:59:56Z
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 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 0xc0fbd88d86daf76daf3b803cdf224abda01eb64a85b851d2970c5787d127f83a. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f4d87f75-4def-4664-8c66-cbec7a004824.json and https://artists.proofprofile.net/proofs/artist/f4d87f75-4def-4664-8c66-cbec7a004824.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
album: Made of Wood
  type: MusicAlbum
  date published: 2013-01-01
album: Right Now
  type: MusicAlbum
  date published: 2013-04-05
  track: Right Now (Extended Mix)
    type: MusicRecording
    duration: PT5M35S
    duration ms: 335552
    explicit: false
    by artist: Kostrok
    in album: Right Now
      type: MusicAlbum
      date published: 2013-04-05
    isrc code: ESD011300044
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T23:58:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x612ed6c7057b84fd48b4cf04640d5e3bf13216ab206879256b8094892d9e8244
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESD011300044
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x612ed6c7057b84fd48b4cf04640d5e3bf13216ab206879256b8094892d9e8244. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/ESD011300044.
      date published: 2026-07-04T10:04:33Z
    audio: Right Now (Extended Mix)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.965
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.563
      additional property: Energy
        type: PropertyValue
        value: 0.825
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.264
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.269
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.207
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Right Now [Remixes]
  type: MusicAlbum
  date published: 2013-05-07
album: The Golden Fruit Train
  type: MusicAlbum
  date published: 2016-01-01
album: The Golden Fruit Train
  type: MusicAlbum
  date published: 2016-01-01
album: The Golden Fruit Train
  type: MusicAlbum
  date published: 2016-01-01
album: Made of Wood (Feat. Bearoid)
  type: MusicAlbum
  date published: 2016-02-05
album: The Golden Fruit Train
  type: MusicAlbum
  date published: 2016-02-19
album: Samana
  type: MusicAlbum
  date published: 2018-10-19
album: Samana
  type: MusicAlbum
  date published: 2018-10-19
  track: Samana
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195483
    explicit: false
    by artist: Kostrok
    in album: Samana
      type: MusicAlbum
      date published: 2018-10-19
    isrc code: ES7001832801
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T07:45:40+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb4336c437a48838f6126271031d1ce7707f9308e55b06932f7b026d65fa5e0f7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958846
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958846
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES7001832801
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T08:14:15Z
    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 0xb4336c437a48838f6126271031d1ce7707f9308e55b06932f7b026d65fa5e0f7. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/ES7001832801.
      date published: 2026-07-20T08:14:15Z
    audio: Samana
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.968
      additional property: Musical Key
        type: PropertyValue
        value: 4
      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: Mundo
album: Lírica
album: TRIP
album: Years Ago
album: Trip
album: Décadas de Baile
album: Escape
album: Décadas De Baile
album: ESCAPE
album: Sin Sentido
album: Life Is a Videogame
album: Se siente Bien
album: CASI BIEN

Danceability
type: PropertyValue
value: 0.671

Energy
type: PropertyValue
value: 0.947

Speechiness
type: PropertyValue
value: 0.106

Acousticness
type: PropertyValue
value: 0.078

Instrumentalness
type: PropertyValue
value: 0.432

Liveness
type: PropertyValue
value: 0.109

Valence (Positivity)
type: PropertyValue
value: 0.284

Loudness (dB)
type: PropertyValue
value: -5.078

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

Samana
type: MusicAlbum
date published: 2018-10-19

Mundo
type: MusicAlbum
date published: 2019-05-27

Mundo
type: MusicAlbum
date published: 2019-10-17

Lírica
type: MusicAlbum
date published: 2021-06-04
track: Lírica
  type: MusicRecording
  duration: PT4M29S
  duration ms: 269032
  explicit: false
  by artist: Kostrok
  in album: Lírica
    type: MusicAlbum
    date published: 2021-06-04
  isrc code: GBKQU2152995
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T08:44:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xed68c06ef6d60d7ef091b7a6282644a40ee5be522ff1f90c9e76d59d28df6a99
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958137
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958137
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKQU2152995
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T09:47:57Z
  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 0xed68c06ef6d60d7ef091b7a6282644a40ee5be522ff1f90c9e76d59d28df6a99. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GBKQU2152995.
    date published: 2026-07-15T09:47:57Z
  audio: Lírica
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.993
    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: 0.698
    additional property: Energy
      type: PropertyValue
      value: 0.831
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.036
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.899
    additional property: Liveness
      type: PropertyValue
      value: 0.099
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.863
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.017
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

TRIP
type: MusicAlbum
date published: 2021-11-01

TRIP
type: MusicAlbum
date published: 2021-11-01

Years Ago
type: MusicAlbum
date published: 2021-11-04

Trip
type: MusicAlbum
date published: 2021-11-11

Décadas de Baile
type: MusicAlbum
date published: 2022-02-04

Décadas de Baile
type: MusicAlbum
date published: 2022-02-04

Escape
type: MusicAlbum
date published: 2022-02-11

Décadas De Baile
type: MusicAlbum
date published: 2022-04-29

ESCAPE
type: MusicAlbum
date published: 2022-11-02

ESCAPE
type: MusicAlbum
date published: 2022-11-02

Sin Sentido
type: MusicAlbum
date published: 2025-04-11

Life Is a Videogame
type: MusicAlbum
date published: 2025-05-09

Se siente Bien
type: MusicAlbum
date published: 2025-06-12

CASI BIEN
type: MusicAlbum
date published: 2025-07-04

CASI BIEN
type: MusicAlbum
date published: 2025-07-04