Da Sein
type: MusicGroup
popularity: 24
followers: 1248
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x623a5b754f9b8468b43cf165762f70db8e6d821f257fa502a82855441de13c38
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/9fbfd50e-9f2d-4ab1-9fe8-6a3cbf4ffb14.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9fbfd50e-9f2d-4ab1-9fe8-6a3cbf4ffb14.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9fbfd50e-9f2d-4ab1-9fe8-6a3cbf4ffb14
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x623a5b754f9b8468b43cf165762f70db8e6d821f257fa502a82855441de13c38","name":"Da Sein","registered_at":"2026-06-12T05:48:41Z","symbol":"NIM0205342","token_address":"0x14c92da9a67dacac7cb5a266e36cbeb117b60460","type":"artist","uuid":"9fbfd50e-9f2d-4ab1-9fe8-6a3cbf4ffb14"}
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 0x623a5b754f9b8468b43cf165762f70db8e6d821f257fa502a82855441de13c38. 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/9fbfd50e-9f2d-4ab1-9fe8-6a3cbf4ffb14.json and https://artists.proofprofile.net/proofs/artist/9fbfd50e-9f2d-4ab1-9fe8-6a3cbf4ffb14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x623a5b754f9b8468b43cf165762f70db8e6d821f257fa502a82855441de13c38","name":"Da Sein","registered_at":"2026-06-12T05:48:41Z","symbol":"NIM0205342","token_address":"0x14c92da9a67dacac7cb5a266e36cbeb117b60460","type":"artist","uuid":"9fbfd50e-9f2d-4ab1-9fe8-6a3cbf4ffb14"}
album: You Know It Too
  type: MusicAlbum
  date published: 2018-04-27
album: You Know It Too
  type: MusicAlbum
  date published: 2018-04-27
  track: You Know It Too
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144848
    explicit: false
    by artist: Da Sein
    in album: You Know It Too
      type: MusicAlbum
      date published: 2018-04-27
    isrc code: SE5Q51800338
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T02:14:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe954209a186ae684a64bb75d7d3863d2a23008ef8195705f19264fa2edccee82
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5Q51800338
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0xe954209a186ae684a64bb75d7d3863d2a23008ef8195705f19264fa2edccee82. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/SE5Q51800338.
      date published: 2026-07-03T08:56:35Z
    audio: You Know It Too
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 125.976
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.678
      additional property: Energy
        type: PropertyValue
        value: 0.225
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.936
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.794
      additional property: Liveness
        type: PropertyValue
        value: 0.137
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.697
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.157
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: There's a Hole in the World
  type: MusicAlbum
  date published: 2020-01-24
  track: Fire, Then Nothing
    type: MusicRecording
    duration: PT4M37S
    duration ms: 277489
    explicit: false
    by artist: Da Sein
    in album: There's a Hole in the World
      type: MusicAlbum
      date published: 2020-01-24
    isrc code: SE5Q51903442
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T20:27:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4d541bc4770e67b16b049b20c73730ad2993e4fd9a9299ac8dcad7b0037caccc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957750
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957750
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5Q51903442
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T20:39:38Z
    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 0x4d541bc4770e67b16b049b20c73730ad2993e4fd9a9299ac8dcad7b0037caccc. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/SE5Q51903442.
      date published: 2026-07-12T20:39:38Z
    audio: Fire, Then Nothing
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.001
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.626
      additional property: Energy
        type: PropertyValue
        value: 0.518
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.444
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.875
      additional property: Liveness
        type: PropertyValue
        value: 0.153
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Valence (Positivity)
type: PropertyValue
value: 0.475

Loudness (dB)
type: PropertyValue
value: -10.128

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major