Sptmbr Yngstr.
type: MusicGroup
genre: south-african-electronic
popularity: 2
followers: 1141
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8ad1de8e03c2fa11e743ae18f49d6bb1b13c195af2d3877ac8b73e688f79659a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a25ae12-4f2c-4f5d-9ac3-893718ff9a0b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4a25ae12-4f2c-4f5d-9ac3-893718ff9a0b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4a25ae12-4f2c-4f5d-9ac3-893718ff9a0b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8ad1de8e03c2fa11e743ae18f49d6bb1b13c195af2d3877ac8b73e688f79659a","name":"Sptmbr Yngstr.","registered_at":"2026-06-16T15:27:52Z","symbol":"NIM1094876","token_address":"0x18eb16787de91f6d51b697b92396a91689a4e14f","type":"artist","uuid":"4a25ae12-4f2c-4f5d-9ac3-893718ff9a0b"}
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 0x8ad1de8e03c2fa11e743ae18f49d6bb1b13c195af2d3877ac8b73e688f79659a. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a25ae12-4f2c-4f5d-9ac3-893718ff9a0b.json and https://artists.proofprofile.net/proofs/artist/4a25ae12-4f2c-4f5d-9ac3-893718ff9a0b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x8ad1de8e03c2fa11e743ae18f49d6bb1b13c195af2d3877ac8b73e688f79659a","name":"Sptmbr Yngstr.","registered_at":"2026-06-16T15:27:52Z","symbol":"NIM1094876","token_address":"0x18eb16787de91f6d51b697b92396a91689a4e14f","type":"artist","uuid":"4a25ae12-4f2c-4f5d-9ac3-893718ff9a0b"}
album: The Fourth Kind
  type: MusicAlbum
  date published: 2024-04-12
album: FADE OUT (Sptmbr Yngstr. Remix)
  type: MusicAlbum
  date published: 2020-09-04
  track: FADE OUT - Sptmbr Yngstr. Remix
    type: MusicRecording
    duration: PT4M21S
    duration ms: 261609
    explicit: false
    by artist: KALLITECHNIS
    by artist: Sptmbr Yngstr.
    in album: FADE OUT (Sptmbr Yngstr. Remix)
      type: MusicAlbum
      date published: 2020-09-04
    popularity: 5
    genre: montreal-indie
    genre: indie-r-b
    genre: canadian-contemporary-r-b
    isrc code: QM24S2006837
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-30T02:08:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe66cb8b916a5882bfdcf8d42e5e9c5a76322982a49eceaf903a4cb1d5b0b0aaa
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960199
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960199
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2006837
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-30T02:30:29Z
    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 0xe66cb8b916a5882bfdcf8d42e5e9c5a76322982a49eceaf903a4cb1d5b0b0aaa. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S2006837 — a six-check JSON result.
      date published: 2026-07-30T02:30:29Z
    audio: FADE OUT - Sptmbr Yngstr. Remix
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.406
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.655
      additional property: Energy
        type: PropertyValue
        value: 0.502
      additional property: Speechiness
        type: PropertyValue
        value: 0.688
      additional property: Acousticness
        type: PropertyValue
        value: 0.192
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.093
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.281
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: You
  type: MusicAlbum
  date published: 2020-05-22
album: memories of U.
  type: MusicAlbum
  date published: 2020-04-24
album: September
  type: MusicAlbum
  date published: 2019-12-19
track: The Fourth Kind
  type: MusicRecording
  duration: PT2M12S
  duration ms: 132727
  explicit: false
  by artist: Espacio Dios
  by artist: Kilter
  by artist: Sptmbr Yngstr.
  in album: Cradle of the Fourthkind
    type: MusicAlbum
    date published: 2024-05-17
  genre: alte
  genre: afro-soul
  isrc code: QMEZE1946134
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T09:41:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5fdc6e4c5248a32e680cea458ec60fcf83680654873ef8be3505ffd786bb8241
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957050
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957050
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEZE1946134
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T14:41:13Z
  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 0x5fdc6e4c5248a32e680cea458ec60fcf83680654873ef8be3505ffd786bb8241. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMEZE1946134 — a six-check JSON result.
    date published: 2026-07-07T14:41:13Z
  audio: The Fourth Kind
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 109.811
    additional property: Musical Key
      type: PropertyValue
      value: 10
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 6
    additional property: Danceability
    additional property: Energy
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Danceability
type: PropertyValue
value: 0.674

Energy
type: PropertyValue
value: 0.555

Speechiness
type: PropertyValue
value: 0.105

Acousticness
type: PropertyValue
value: 0.083

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.104

Valence (Positivity)
type: PropertyValue
value: 0.654

Loudness (dB)
type: PropertyValue
value: -10.487

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Minor