Seyoffi
type: MusicGroup
popularity: 11
followers: 160
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbd2dd352fc84fb07acbf6138e45f9b8ef65776cef0b9a18b5be92526b74092cf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953592
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953592
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0528daea-f456-422c-ac68-d174dcb38ecd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0528daea-f456-422c-ac68-d174dcb38ecd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0528daea-f456-422c-ac68-d174dcb38ecd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T05:36:59Z
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 0xbd2dd352fc84fb07acbf6138e45f9b8ef65776cef0b9a18b5be92526b74092cf. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0528daea-f456-422c-ac68-d174dcb38ecd.json and https://artists.proofprofile.net/proofs/artist/0528daea-f456-422c-ac68-d174dcb38ecd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T05:36:59Z
album: Come From
  type: MusicAlbum
  date published: 2023-02-02
  track: Come From
    type: MusicRecording
    duration: PT1M50S
    duration ms: 110300
    explicit: false
    by artist: Seyoffi
    in album: Come From
      type: MusicAlbum
      date published: 2023-02-02
    isrc code: NLL8M2400399
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T21:30:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb0875830cb810c2d24f35f654b1daff38267f6daa0d7e0d2539797dfe9cff54e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958331
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958331
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLL8M2400399
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:32:57Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0875830cb810c2d24f35f654b1daff38267f6daa0d7e0d2539797dfe9cff54e. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:32:57Z), 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/NLL8M2400399.
      date published: 2026-07-17T00:32:57Z
    audio: Come From
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 102.062
      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: 0.863
      additional property: Energy
        type: PropertyValue
        value: 0.538
      additional property: Speechiness
        type: PropertyValue
        value: 0.206
      additional property: Acousticness
        type: PropertyValue
        value: 0.569
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.573
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.911
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Uit Marokko
  type: MusicAlbum
  date published: 2023-12-25
album: Uit Marokko
  type: MusicAlbum
  date published: 2023-12-25
album: UIT MAROKKO
  type: MusicAlbum
  date published: 2023-12-31
  track: UIT MAROKKO
    type: MusicRecording
    duration: PT2M19S
    duration ms: 139321
    explicit: true
    by artist: Seyoffi
    in album: UIT MAROKKO
      type: MusicAlbum
      date published: 2023-12-31
    isrc code: QT6E92565477
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T03:17:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5669369807c674f1f0ec5024b550900a4ad744cfe60204d1a802fb26c513dcaa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956891
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956891
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT6E92565477
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T07:16:32Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5669369807c674f1f0ec5024b550900a4ad744cfe60204d1a802fb26c513dcaa. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/QT6E92565477.
      date published: 2026-07-06T07:16:32Z
    audio: UIT MAROKKO
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.01
      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: 0.866
      additional property: Energy
        type: PropertyValue
        value: 0.491
      additional property: Speechiness
        type: PropertyValue
        value: 0.366
      additional property: Acousticness
        type: PropertyValue
        value: 0.729
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Aangenaam
album: Het zuiden
album: Wake Up
album: Facetime

Valence (Positivity)
type: PropertyValue
value: 0.565

Loudness (dB)
type: PropertyValue
value: -13.26

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

Aangenaam
type: MusicAlbum
date published: 2024-06-07

Het zuiden
type: MusicAlbum
date published: 2024-07-19

Wake Up
type: MusicAlbum
date published: 2024-09-06

Facetime
type: MusicAlbum
date published: 2024-12-27