ferhasleft
type: MusicGroup
genre: cold wave
genre: darkwave
popularity: 8
followers: 18
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb5a41190248b585b2a8765c6247276edbc7301d6c14653fd2aa8176eb5a44b55
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df577191-9813-4f3f-9ce8-4145ed0ba6e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/df577191-9813-4f3f-9ce8-4145ed0ba6e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/df577191-9813-4f3f-9ce8-4145ed0ba6e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
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 0xb5a41190248b585b2a8765c6247276edbc7301d6c14653fd2aa8176eb5a44b55. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/df577191-9813-4f3f-9ce8-4145ed0ba6e8.json and https://artists.proofprofile.net/proofs/artist/df577191-9813-4f3f-9ce8-4145ed0ba6e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
album: Hell Rave
  type: MusicAlbum
  date published: 2024-12-18
album: Demon Blood
  type: MusicAlbum
  date published: 2024-12-21
album: Demon Blood
  type: MusicAlbum
  date published: 2024-12-21
album: Synthetic
  type: MusicAlbum
  date published: 2024-12-27
album: hassen
  type: MusicAlbum
  date published: 2024-12-29
  track: hassen
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161307
    explicit: false
    by artist: ferhasleft
    in album: hassen
      type: MusicAlbum
      date published: 2024-12-29
    genre: cold wave
    genre: darkwave
    isrc code: QT3F22476252
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T10:11:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb7ef7bbd751a7d45f84ccab0faad2ce0101ef0fd0ffa8d6ab14456bc29182260
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956637
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956637
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3F22476252
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:56:23Z
    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 0xb7ef7bbd751a7d45f84ccab0faad2ce0101ef0fd0ffa8d6ab14456bc29182260. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/QT3F22476252.
      date published: 2026-07-04T10:56:23Z
    audio: hassen
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.914
      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: 0.623
      additional property: Energy
        type: PropertyValue
        value: 0.552
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.186
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.613
      additional property: Liveness
        type: PropertyValue
        value: 0.419
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.225
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.164
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: hassen
  type: MusicAlbum
  date published: 2024-12-29
album: spectre
  type: MusicAlbum
  date published: 2025-01-17
album: spectre
  type: MusicAlbum
  date published: 2025-01-17
album: aura
  type: MusicAlbum
  date published: 2025-01-24
album: aura
  type: MusicAlbum
  date published: 2025-01-24
album: skins
  type: MusicAlbum
  date published: 2025-02-11
album: skins
  type: MusicAlbum
  date published: 2025-02-11
album: damage
  type: MusicAlbum
  date published: 2025-03-07
album: tears
  type: MusicAlbum
  date published: 2025-03-26
album: porcelain
  type: MusicAlbum
  date published: 2025-04-11
  track: porcelain
    type: MusicRecording
    duration: PT2M4S
    duration ms: 124745
    explicit: false
    by artist: ferhasleft
    in album: porcelain
      type: MusicAlbum
      date published: 2025-04-11
    genre: cold wave
    genre: darkwave
    isrc code: QZSYP2568668
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T05:28:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x227848764ddbc4cbb76621297cc36ee7b4b82321c82548763662b8b01b99ef85
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958977
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958977
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZSYP2568668
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T06:27:23Z
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: porcelain
album: venus
album: clouds
album: chemistry
album: blasphemous
album: miracle
album: enigma
album: Axiom
album: Monster
album: void
album: liquid
album: herz

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 0x227848764ddbc4cbb76621297cc36ee7b4b82321c82548763662b8b01b99ef85. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/QZSYP2568668.
date published: 2026-07-21T06:27:23Z

porcelain
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 176.949
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: 0.54
additional property: Energy
  type: PropertyValue
  value: 0.853
additional property: Speechiness
  type: PropertyValue
  value: 0.073
additional property: Acousticness
  type: PropertyValue
  value: 0.915
additional property: Instrumentalness
  type: PropertyValue
  value: 0.829
additional property: Liveness
  type: PropertyValue
  value: 0.118
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.072
additional property: Loudness (dB)
  type: PropertyValue
  value: -7.045
additional property: Key Name
  type: PropertyValue
  value: A
additional property: Mode Name
  type: PropertyValue
  value: Minor

venus
type: MusicAlbum
date published: 2025-05-07
track: venus
  type: MusicRecording
  duration: PT2M45S
  duration ms: 165120
  explicit: false
  by artist: ferhasleft
  in album: venus
    type: MusicAlbum
    date published: 2025-05-07
  genre: cold wave
  genre: darkwave
  isrc code: QZQAY2587752
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T22:53:34+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xca8a3729d349e773ff5a71ce3f4d32ebc8d2c86b1631379cbaeb3ede36be57be
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956856
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956856
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2587752
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T01:25:57Z
  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 0xca8a3729d349e773ff5a71ce3f4d32ebc8d2c86b1631379cbaeb3ede36be57be. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZQAY2587752.
    date published: 2026-07-06T01:25:57Z
  audio: venus
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 125.037
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.527
    additional property: Energy
      type: PropertyValue
      value: 0.618
    additional property: Speechiness
      type: PropertyValue
      value: 0.031
    additional property: Acousticness
      type: PropertyValue
      value: 0.021
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.918
    additional property: Liveness
      type: PropertyValue
      value: 0.365
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.478
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.371
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

clouds
type: MusicAlbum
date published: 2025-06-02

chemistry
type: MusicAlbum
date published: 2025-06-13

blasphemous
type: MusicAlbum
date published: 2025-07-04
track: blasphemous
  type: MusicRecording
  duration: PT3M14S
  duration ms: 194000
  explicit: false
  by artist: ferhasleft
  in album: blasphemous
    type: MusicAlbum
    date published: 2025-07-04
  genre: cold wave
  genre: darkwave
  isrc code: QZQAY2530263
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T18:51:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb7a1c4c5f85809d502690678e16f2f0065b0a6b2aad1b542517b8908c09c63d0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958194
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958194
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZQAY2530263
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T20:32:27Z
  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 0xb7a1c4c5f85809d502690678e16f2f0065b0a6b2aad1b542517b8908c09c63d0. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZQAY2530263.
    date published: 2026-07-15T20:32:27Z
  audio: blasphemous
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.005
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.594
    additional property: Energy
      type: PropertyValue
      value: 0.889
    additional property: Speechiness
      type: PropertyValue
      value: 0.041
    additional property: Acousticness
      type: PropertyValue
      value: 0.063
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.881
    additional property: Liveness
      type: PropertyValue
      value: 0.065
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.067
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.318
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Major

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

enigma
type: MusicAlbum
date published: 2025-08-01

Axiom
type: MusicAlbum
date published: 2025-08-18

Monster
type: MusicAlbum
date published: 2025-09-08

void
type: MusicAlbum
date published: 2025-09-19

liquid
type: MusicAlbum
date published: 2025-10-09

herz
type: MusicAlbum
date published: 2025-10-31