El Kairo & Only
type: MusicGroup
popularity: 13
followers: 170
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d873e4e94023811600be4a4eae12982120293dc2fb528a9c0a498f5c1cd3746
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/fb5940c0-001b-43fc-aea0-efc47766a39f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fb5940c0-001b-43fc-aea0-efc47766a39f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fb5940c0-001b-43fc-aea0-efc47766a39f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8d873e4e94023811600be4a4eae12982120293dc2fb528a9c0a498f5c1cd3746","name":"El Kairo & Only","registered_at":"2026-06-15T07:00:15Z","symbol":"NIM0718345","token_address":"0x004c798ebcb52a64d14218c5e85158d9bb1e5df3","type":"artist","uuid":"fb5940c0-001b-43fc-aea0-efc47766a39f"}
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 0x8d873e4e94023811600be4a4eae12982120293dc2fb528a9c0a498f5c1cd3746. 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/fb5940c0-001b-43fc-aea0-efc47766a39f.json and https://artists.proofprofile.net/proofs/artist/fb5940c0-001b-43fc-aea0-efc47766a39f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x8d873e4e94023811600be4a4eae12982120293dc2fb528a9c0a498f5c1cd3746","name":"El Kairo & Only","registered_at":"2026-06-15T07:00:15Z","symbol":"NIM0718345","token_address":"0x004c798ebcb52a64d14218c5e85158d9bb1e5df3","type":"artist","uuid":"fb5940c0-001b-43fc-aea0-efc47766a39f"}
album: Orula
  type: MusicAlbum
  date published: 2020-08-21
album: Amigos por Papeles
  type: MusicAlbum
  date published: 2022-05-27
album: Ahora Vete
  type: MusicAlbum
  date published: 2022-07-31
album: Me Equivocare
  type: MusicAlbum
  date published: 2022-08-17
album: Estamos en Eso
  type: MusicAlbum
  date published: 2022-10-12
album: Quisiera
  type: MusicAlbum
  date published: 2023-02-14
album: La Carta
  type: MusicAlbum
  date published: 2023-02-14
album: El Basta
  type: MusicAlbum
  date published: 2023-02-20
album: Adictos
  type: MusicAlbum
  date published: 2023-02-25
album: Ahora Vete (Remix)
  type: MusicAlbum
  date published: 2023-03-13
album: Autocontrol
  type: MusicAlbum
  date published: 2023-04-27
album: Autocontrol
  type: MusicAlbum
  date published: 2023-08-25
album: Autocontrol
  type: MusicAlbum
  date published: 2023-08-25
album: Mi Mentalidad
  type: MusicAlbum
  date published: 2023-11-01
album: Pacto
  type: MusicAlbum
  date published: 2023-11-23
album: Sacame la Vista
  type: MusicAlbum
  date published: 2023-12-17
album: La Verdad
  type: MusicAlbum
  date published: 2024-01-22
  track: La Verdad
    type: MusicRecording
    duration: PT3M25S
    duration ms: 205061
    explicit: false
    by artist: El Kairo & Only
    in album: La Verdad
      type: MusicAlbum
      date published: 2024-01-22
    isrc code: QZ5AB2401980
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T05:28:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4967a21cef670ac3ef52422a7b2e05a476ad8ff5c55b891eda1e243709168410
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960354
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960354
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ5AB2401980
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T05:48:18Z
    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 0x4967a21cef670ac3ef52422a7b2e05a476ad8ff5c55b891eda1e243709168410. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/QZ5AB2401980.
      date published: 2026-07-31T05:48:18Z
    audio: La Verdad
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.245
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.756
      additional property: Energy
        type: PropertyValue
        value: 0.68
      additional property: Speechiness
        type: PropertyValue
        value: 0.091
      additional property: Acousticness
        type: PropertyValue
        value: 0.409
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.116
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.807
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.075
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: 7 Am
  type: MusicAlbum
  date published: 2024-02-16
album: Mahoma
  type: MusicAlbum
  date published: 2024-04-18
  track: Mahoma
    type: MusicRecording
    duration: PT3M38S
    duration ms: 218400
    explicit: false
    by artist: El Kairo & Only
    in album: Mahoma
      type: MusicAlbum
      date published: 2024-04-18
    isrc code: QZGLS2472235
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T02:15:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x59c5cc1118eda25ece062715e0d2173f2b12ce7d0bfd86627ce904ee6574bcff
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958644
    additional property: OTSBitcoinBlockVerifyURL
    additional property: OTSVerificationAPI
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: Mahoma
album: Dime Que Lo Que
album: El Otro
album: Chkll
album: La Cumbia
album: Úsame
album: Usame
album: 5 Minutos
album: Gemidos

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958644

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2472235

OTSTimestamp
type: PropertyValue
value: 2026-07-19T02:21:25Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59c5cc1118eda25ece062715e0d2173f2b12ce7d0bfd86627ce904ee6574bcff. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZGLS2472235.
date published: 2026-07-19T02:21:25Z

Mahoma
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 99.957
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: 0.794
additional property: Energy
  type: PropertyValue
  value: 0.883
additional property: Speechiness
  type: PropertyValue
  value: 0.107
additional property: Acousticness
  type: PropertyValue
  value: 0.163
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.3
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.893
additional property: Loudness (dB)
  type: PropertyValue
  value: -4.148
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Minor

Dime Que Lo Que
type: MusicAlbum
date published: 2024-07-12

El Otro
type: MusicAlbum
date published: 2025-01-10
track: El Otro
  type: MusicRecording
  duration: PT3M25S
  duration ms: 205477
  explicit: false
  by artist: El Kairo & Only
  in album: El Otro
    type: MusicAlbum
    date published: 2025-01-10
  isrc code: US7VG2516826
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T17:40:45+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5da92a242fbb88ec6bb39d705a00ac7e2031d50a8b4c7366d68e6c1789cb94d3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956545
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956545
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2516826
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T19:59:51Z
  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 0x5da92a242fbb88ec6bb39d705a00ac7e2031d50a8b4c7366d68e6c1789cb94d3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US7VG2516826.
    date published: 2026-07-03T19:59:51Z
  audio: El Otro
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 102.018
    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: 0.766
    additional property: Energy
      type: PropertyValue
      value: 0.835
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.454
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.271
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.582
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.788
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major

Chkll
type: MusicAlbum
date published: 2025-02-14

La Cumbia
type: MusicAlbum
date published: 2025-03-14

Úsame
type: MusicAlbum
date published: 2025-04-25

Usame
type: MusicAlbum
date published: 2025-05-01

5 Minutos
type: MusicAlbum
date published: 2025-05-26
track: 5 Minutos
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198112
  explicit: false
  by artist: El Kairo & Only
  in album: 5 Minutos
    type: MusicAlbum
    date published: 2025-05-26
  isrc code: QZRP42545295
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T06:24:17+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf07cdd68cfd8dead78bfde6c643fbd39c33fa2446cee72738929e3275980d0a6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956772
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956772
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42545295
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T10:01:46Z
  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 0xf07cdd68cfd8dead78bfde6c643fbd39c33fa2446cee72738929e3275980d0a6. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZRP42545295.
    date published: 2026-07-05T10:01:46Z
  audio: 5 Minutos
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 103.061
    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: 0.803
    additional property: Energy
      type: PropertyValue
      value: 0.685
    additional property: Speechiness
      type: PropertyValue
      value: 0.146
    additional property: Acousticness
      type: PropertyValue
      value: 0.279
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.019
    additional property: Liveness
      type: PropertyValue
      value: 0.214
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.578
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.011
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Gemidos
type: MusicAlbum
date published: 2025-08-14