Fer
type: MusicGroup
description: FER or Fer may refer to: Grapes Fer, a French red-wine grape Gros Verdot, a French red-wine grape Languages Fer language, a Nilo-Saharan language Kaligi language, a Ubangian language People Fe
popularity: 29
followers: 10811
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x39aa13c1ebf91a9750adf4797bf5f240c6ac3bc4030e58fc64499a2c4fa6d1a2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d1a5c7e-dc10-42e2-938b-90089d00adc0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7d1a5c7e-dc10-42e2-938b-90089d00adc0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7d1a5c7e-dc10-42e2-938b-90089d00adc0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39aa13c1ebf91a9750adf4797bf5f240c6ac3bc4030e58fc64499a2c4fa6d1a2. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d1a5c7e-dc10-42e2-938b-90089d00adc0.json and https://artists.proofprofile.net/proofs/artist/7d1a5c7e-dc10-42e2-938b-90089d00adc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: sunset (pre 9)
  type: MusicAlbum
  date published: 2020-07-31
album: sunset (pre 9)
  type: MusicAlbum
  date published: 2020-07-31
album: conmigo
  type: MusicAlbum
  date published: 2021-01-15
  track: conmigo
    type: MusicRecording
    duration: PT2M36S
    duration ms: 156000
    explicit: true
    by artist: Fer
    in album: conmigo
      type: MusicAlbum
      date published: 2021-01-15
    isrc code: QZFYX2132977
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T03:53:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x442a9e1cd124b2621334cc491b65bc7252a5ef00a3bbc0e5902a6b09e8ef6c57
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958245
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958245
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2132977
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T06:54:14Z
    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 0x442a9e1cd124b2621334cc491b65bc7252a5ef00a3bbc0e5902a6b09e8ef6c57. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:54:14Z), 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/QZFYX2132977.
      date published: 2026-07-16T06:54:14Z
    audio: conmigo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.01
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.74
      additional property: Energy
        type: PropertyValue
        value: 0.498
      additional property: Speechiness
        type: PropertyValue
        value: 0.329
      additional property: Acousticness
        type: PropertyValue
        value: 0.651
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.513
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.901
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: conmigo
  type: MusicAlbum
  date published: 2021-01-15
album: ojos café
  type: MusicAlbum
  date published: 2021-02-19
  track: ojos café
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213658
    explicit: false
    by artist: Fer
    in album: ojos café
      type: MusicAlbum
      date published: 2021-02-19
    isrc code: QZFYX2134424
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T22:27:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf4bd0939f1ed00393f42120c0375b2b998248ba8fcc43fb9172b22e04c116784
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956422
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956422
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFYX2134424
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T01:01:38Z
    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 0xf4bd0939f1ed00393f42120c0375b2b998248ba8fcc43fb9172b22e04c116784. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFYX2134424.
      date published: 2026-07-03T01:01:38Z
    audio: ojos café
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 164.052
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.734
      additional property: Energy
        type: PropertyValue
        value: 0.525
      additional property: Speechiness
        type: PropertyValue
        value: 0.54
      additional property: Acousticness
        type: PropertyValue
        value: 0.748
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: pero qué cosa
album: 20
album: 9
album: chanteo sad
album: The Process
album: cami
album: babi
album: 9 (Acoustic Version)
album: irreal
album: MCBO
album: The Process 2
album: tqv
album: The Process 3

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.124

Valence (Positivity)
type: PropertyValue
value: 0.317

Loudness (dB)
type: PropertyValue
value: -10.685

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

ojos café
type: MusicAlbum
date published: 2021-02-19

pero qué cosa
type: MusicAlbum
date published: 2021-05-14

pero qué cosa
type: MusicAlbum
date published: 2021-05-14

20
type: MusicAlbum
date published: 2021-07-09

20
type: MusicAlbum
date published: 2021-07-09

9
type: MusicAlbum
date published: 2021-09-03

9
type: MusicAlbum
date published: 2021-09-03

chanteo sad
type: MusicAlbum
date published: 2021-10-12

chanteo sad
type: MusicAlbum
date published: 2021-10-12

The Process
type: MusicAlbum
date published: 2021-12-27

The Process
type: MusicAlbum
date published: 2021-12-27

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

babi
type: MusicAlbum
date published: 2022-03-18

cami
type: MusicAlbum
date published: 2022-06-17

9 (Acoustic Version)
type: MusicAlbum
date published: 2022-09-09

irreal
type: MusicAlbum
date published: 2022-10-28

MCBO
type: MusicAlbum
date published: 2022-12-16

The Process 2
type: MusicAlbum
date published: 2022-12-30

tqv
type: MusicAlbum
date published: 2023-01-27

The Process 3
type: MusicAlbum
date published: 2023-12-29