Sarah Stefanski
type: MusicGroup
genre: german pop
popularity: 33
followers: 2415
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x732cf8a8bc94d759ec1b9eb4e502e6e04d8a546bf85a184c05fe68df3588f6a3
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/362826e4-c72e-4c7b-b0a5-f7d6766c65f0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/362826e4-c72e-4c7b-b0a5-f7d6766c65f0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/362826e4-c72e-4c7b-b0a5-f7d6766c65f0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x732cf8a8bc94d759ec1b9eb4e502e6e04d8a546bf85a184c05fe68df3588f6a3","name":"Sarah Stefanski","registered_at":"2026-06-11T16:43:17Z","symbol":"NIM0071263","token_address":"0xc8a2c30586869d2ba7f7d24ba953b49cf6ea359a","type":"artist","uuid":"362826e4-c72e-4c7b-b0a5-f7d6766c65f0"}
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 0x732cf8a8bc94d759ec1b9eb4e502e6e04d8a546bf85a184c05fe68df3588f6a3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/362826e4-c72e-4c7b-b0a5-f7d6766c65f0.json and https://artists.proofprofile.net/proofs/artist/362826e4-c72e-4c7b-b0a5-f7d6766c65f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x732cf8a8bc94d759ec1b9eb4e502e6e04d8a546bf85a184c05fe68df3588f6a3","name":"Sarah Stefanski","registered_at":"2026-06-11T16:43:17Z","symbol":"NIM0071263","token_address":"0xc8a2c30586869d2ba7f7d24ba953b49cf6ea359a","type":"artist","uuid":"362826e4-c72e-4c7b-b0a5-f7d6766c65f0"}
album: Silhouette
  type: MusicAlbum
  date published: 2021-04-25
album: Silhouette
  type: MusicAlbum
  date published: 2021-04-30
album: Nie mehr down
  type: MusicAlbum
  date published: 2021-07-15
album: Nie Mehr Down
  type: MusicAlbum
  date published: 2021-07-15
album: Wenn Sie Tanzt
  type: MusicAlbum
  date published: 2022-06-09
  track: Wenn Sie Tanzt
    type: MusicRecording
    duration: PT2M3S
    duration ms: 123600
    explicit: false
    by artist: Sarah Stefanski
    in album: Wenn Sie Tanzt
      type: MusicAlbum
      date published: 2022-06-09
    genre: german pop
    isrc code: TCAGF2266686
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-11T04:28:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x32e27dd6e6362abb4480bc745de43a4dfec1f6a3c9ec60ee5909d9887de64a0b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957522
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957522
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAGF2266686
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-11T04:46:56Z
    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 0x32e27dd6e6362abb4480bc745de43a4dfec1f6a3c9ec60ee5909d9887de64a0b. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/TCAGF2266686.
      date published: 2026-07-11T04:46:56Z
    audio: Wenn Sie Tanzt
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.947
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.845
      additional property: Energy
        type: PropertyValue
        value: 0.759
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.121
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.211
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.339
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.068
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ohne Dich
  type: MusicAlbum
  date published: 2022-10-27
album: Treibsand
  type: MusicAlbum
  date published: 2022-12-29
album: Next Lvl
  type: MusicAlbum
  date published: 2023-05-11
album: Zwischen Uns
  type: MusicAlbum
  date published: 2023-09-21
album: Narzisst
  type: MusicAlbum
  date published: 2024-01-18
album: 160 Km/H
  type: MusicAlbum
  date published: 2024-02-29
  track: 160 Km/H
    type: MusicRecording
    duration: PT2M17S
    duration ms: 137938
    explicit: false
    by artist: Sarah Stefanski
    in album: 160 Km/H
      type: MusicAlbum
      date published: 2024-02-29
    genre: german pop
    isrc code: TCAHY2466197
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-11T04:30:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe028e99e715e043270867e16a9e2923512b20c89ff0073b96386c702b9d8f5ec
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957522
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957522
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAHY2466197
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-11T04:46:56Z
    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 0xe028e99e715e043270867e16a9e2923512b20c89ff0073b96386c702b9d8f5ec. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/TCAHY2466197.
      date published: 2026-07-11T04:46:56Z
    audio: 160 Km/H
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.941
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      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
album: Weltwunder
album: Paris
album: Titanic
album: Gestern in Love
album: Summer Love
album: Polaroid

Musical Key
type: PropertyValue
value: 6

Mode (Major/Minor)
type: PropertyValue
value: 1

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.799

Energy
type: PropertyValue
value: 0.64

Speechiness
type: PropertyValue
value: 0.102

Acousticness
type: PropertyValue
value: 0.302

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.058

Valence (Positivity)
type: PropertyValue
value: 0.515

Loudness (dB)
type: PropertyValue
value: -5.789

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Weltwunder
type: MusicAlbum
date published: 2024-05-17

Paris
type: MusicAlbum
date published: 2024-08-09

Titanic
type: MusicAlbum
date published: 2025-01-03

Gestern in Love
type: MusicAlbum
date published: 2025-03-21

Summer Love
type: MusicAlbum
date published: 2025-05-23

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