AFR
type: MusicGroup
description: AFR may refer to: AFR (film), a 2007 film Afrikaans language, ISO-639 code After Further Review, sports program on BYU TV Air–fuel ratio, an engineering term Alternate frame rendering, a compute
popularity: 8
followers: 629
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6e73917ce69d768a41de2c79cad20af191876dcfd16365bd9b0a4ecae4ca534e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/222af0c6-524b-4b5a-bd86-5c9fbaec72c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/222af0c6-524b-4b5a-bd86-5c9fbaec72c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/222af0c6-524b-4b5a-bd86-5c9fbaec72c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
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 0x6e73917ce69d768a41de2c79cad20af191876dcfd16365bd9b0a4ecae4ca534e. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/222af0c6-524b-4b5a-bd86-5c9fbaec72c7.json and https://artists.proofprofile.net/proofs/artist/222af0c6-524b-4b5a-bd86-5c9fbaec72c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:14:26Z
album: La Noche
  type: MusicAlbum
  date published: 2020-05-09
album: Último intento
  type: MusicAlbum
  date published: 2020-09-05
album: Conocerte
  type: MusicAlbum
  date published: 2021-05-30
album: Conocerte
  type: MusicAlbum
  date published: 2021-05-30
album: Nada +
  type: MusicAlbum
  date published: 2022-01-22
album: Me Juraste
  type: MusicAlbum
  date published: 2022-04-01
album: HOTEL
  type: MusicAlbum
  date published: 2022-09-30
album: VOLAR
  type: MusicAlbum
  date published: 2023-03-09
album: VOLAR
  type: MusicAlbum
  date published: 2023-03-09
album: Me Acostumbre
  type: MusicAlbum
  date published: 2023-05-04
album: RECUERDOS
  type: MusicAlbum
  date published: 2023-06-07
album: Esa Cancion
  type: MusicAlbum
  date published: 2023-07-27
album: Esa Cancion
  type: MusicAlbum
  date published: 2023-07-27
  track: Esa Cancion
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184180
    explicit: false
    by artist: AFR
    in album: Esa Cancion
      type: MusicAlbum
      date published: 2023-07-27
    isrc code: QZYFZ2315247
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T20:03:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xeedc1b4205120e13e7020ead19d2c4adc2b179ffd95d3a993586b21ddee98894
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958319
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958319
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYFZ2315247
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T20:12:32Z
    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 0xeedc1b4205120e13e7020ead19d2c4adc2b179ffd95d3a993586b21ddee98894. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/QZYFZ2315247.
      date published: 2026-07-16T20:12:32Z
    audio: Esa Cancion
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.974
      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: 0.594
      additional property: Energy
        type: PropertyValue
        value: 0.465
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.066
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.569
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.093
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: SEROTONINA
  type: MusicAlbum
  date published: 2023-10-12
album: SEROTONINA
  type: MusicAlbum
  date published: 2023-10-12
  track: SEROTONINA
    type: MusicRecording
    duration: PT2M37S
    duration ms: 157890
    explicit: false
    by artist: AFR
    in album: SEROTONINA
      type: MusicAlbum
      date published: 2023-10-12
    isrc code: QZYFZ2392905
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T09:14:31+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x630116ce1763ff4281b01db0524bdf7e42ebd858b57cde06a6e8240a2612ab08
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958529
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958529
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZYFZ2392905
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T09:21:41Z
    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
    audio: SEROTONINA
album: QUINDIANOS
album: VT
album: Ocultar
album: Ilusión
album: TRIP
album: AUSENCIA
album: SORRENTO
album: Room sessions vol.1 (Serotonina) [Acústico]
album: Room sessions vol.2 (Ausencia) [Acústico]
album: Historias para no dormir
album: Siempre Tú
album: MERA VUELTA
album: Sentir Multicolor
album: CORINTIOS
album: Room sessions (Acústico)
album: SERPIENTE

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x630116ce1763ff4281b01db0524bdf7e42ebd858b57cde06a6e8240a2612ab08. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/QZYFZ2392905.
date published: 2026-07-18T09:21:41Z

SEROTONINA
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 136.909
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: 0.673
additional property: Energy
  type: PropertyValue
  value: 0.633
additional property: Speechiness
  type: PropertyValue
  value: 0.057
additional property: Acousticness
  type: PropertyValue
  value: 0.092
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.075
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.569
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.833
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Minor

QUINDIANOS
type: MusicAlbum
date published: 2023-11-21

VT
type: MusicAlbum
date published: 2023-12-12

VT
type: MusicAlbum
date published: 2023-12-12

Ocultar
type: MusicAlbum
date published: 2024-02-29
track: Ocultar
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159946
  explicit: false
  by artist: AFR
  in album: Ocultar
    type: MusicAlbum
    date published: 2024-02-29
  isrc code: QZZ662432017
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T14:50:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf3c205ad1874c010524a778fb10fac0215733a3b6ae03a1b321b85b62e123878
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958749
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958749
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZZ662432017
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-19T17:53:37Z
  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 0xf3c205ad1874c010524a778fb10fac0215733a3b6ae03a1b321b85b62e123878. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:53:37Z), 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/QZZ662432017.
    date published: 2026-07-19T17:53:37Z
  audio: Ocultar
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.014
    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: 0.665
    additional property: Energy
      type: PropertyValue
      value: 0.942
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.181
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.043
    additional property: Liveness
      type: PropertyValue
      value: 0.31
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.353
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.198
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Ilusión
type: MusicAlbum
date published: 2024-04-26

Ilusión
type: MusicAlbum
date published: 2024-04-26

TRIP
type: MusicAlbum
date published: 2024-05-24

AUSENCIA
type: MusicAlbum
date published: 2024-06-21

AUSENCIA
type: MusicAlbum
date published: 2024-06-21

SORRENTO
type: MusicAlbum
date published: 2024-08-30

Room sessions vol.1 (Serotonina) [Acústico]
type: MusicAlbum
date published: 2024-09-13

Room sessions vol.2 (Ausencia) [Acústico]
type: MusicAlbum
date published: 2024-09-27

Historias para no dormir
type: MusicAlbum
date published: 2025-03-14

Historias para no dormir
type: MusicAlbum
date published: 2025-03-14

Siempre Tú
type: MusicAlbum
date published: 2025-04-25

MERA VUELTA
type: MusicAlbum
date published: 2025-05-30

Sentir Multicolor
type: MusicAlbum
date published: 2025-06-20

CORINTIOS
type: MusicAlbum
date published: 2025-07-18

Room sessions (Acústico)
type: MusicAlbum
date published: 2025-08-28

SERPIENTE
type: MusicAlbum
date published: 2025-09-26
track: SERPIENTE
  type: MusicRecording
  duration: PT2M7S
  duration ms: 127762
  explicit: false
  by artist: AFR
  in album: SERPIENTE
    type: MusicAlbum
    date published: 2025-09-26
  isrc code: ARIXB2501997
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T02:55:53+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xe0bd57b39c28d31e1240fef640b7bfaf8a6dbf1cc59c32cb7445d7973c685cf7
  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/ARIXB2501997
  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 0xe0bd57b39c28d31e1240fef640b7bfaf8a6dbf1cc59c32cb7445d7973c685cf7. 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/ARIXB2501997.
    date published: 2026-07-05T10:01:46Z
  audio: SERPIENTE
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 99.887
    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: 0.599
    additional property: Energy
      type: PropertyValue
      value: 0.653
    additional property: Speechiness
      type: PropertyValue
      value: 0.073
    additional property: Acousticness
      type: PropertyValue
      value: 0.078
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.341
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.764
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.955
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Minor