K Sera
type: MusicGroup
genre: dark cabaret
popularity: 6
followers: 1967
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x729d20e354a4cbcfa264a3136e82fedac7933f490d52c8c50ab485eade68f4c6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4934e26-47f7-4e01-a8b3-981f885b7abc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4934e26-47f7-4e01-a8b3-981f885b7abc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4934e26-47f7-4e01-a8b3-981f885b7abc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x729d20e354a4cbcfa264a3136e82fedac7933f490d52c8c50ab485eade68f4c6","name":"K Sera","registered_at":"2026-06-20T07:04:43Z","symbol":"NIM1549291","token_address":"0x61c090c4dda7d16b61c302d9bf9dc94e6538098a","type":"artist","uuid":"a4934e26-47f7-4e01-a8b3-981f885b7abc"}
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 0x729d20e354a4cbcfa264a3136e82fedac7933f490d52c8c50ab485eade68f4c6. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4934e26-47f7-4e01-a8b3-981f885b7abc.json and https://artists.proofprofile.net/proofs/artist/a4934e26-47f7-4e01-a8b3-981f885b7abc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x729d20e354a4cbcfa264a3136e82fedac7933f490d52c8c50ab485eade68f4c6","name":"K Sera","registered_at":"2026-06-20T07:04:43Z","symbol":"NIM1549291","token_address":"0x61c090c4dda7d16b61c302d9bf9dc94e6538098a","type":"artist","uuid":"a4934e26-47f7-4e01-a8b3-981f885b7abc"}
album: The Machinist - EP
  type: MusicAlbum
  date published: 2008-01-01
album: The Cantos - EP
  type: MusicAlbum
  date published: 2010-11-05
  track: Me Before Women & Children
    type: MusicRecording
    duration: PT3M31S
    duration ms: 211153
    explicit: false
    by artist: K Sera
    in album: The Cantos - EP
      type: MusicAlbum
      date published: 2010-11-05
    genre: dark cabaret
    isrc code: USHM91077962
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T11:37:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x40738ce2e5a3c2a17e7cca84aa181ed40fb345ee2707c37e06f0bce51082c0c8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959003
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959003
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM91077962
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T14:39:31Z
    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 0x40738ce2e5a3c2a17e7cca84aa181ed40fb345ee2707c37e06f0bce51082c0c8. Chain 2 (Bitcoin): anchored in block 959003 (2026-07-21T14:39:31Z), 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/USHM91077962.
      date published: 2026-07-21T14:39:31Z
    audio: Me Before Women & Children
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.99
      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: 0.62
      additional property: Energy
        type: PropertyValue
        value: 0.861
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.017
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.305
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.724
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.978
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: The Cantos ii
  type: MusicAlbum
  date published: 2011-01-01
album: The Cantos Ii
  type: MusicAlbum
  date published: 2011-11-01
album: Dream Like I Do
  type: MusicAlbum
  date published: 2012-11-13
album: Collisions & Near Misses
  type: MusicAlbum
  date published: 2013-02-26
album: Revolution in Retrospect
  type: MusicAlbum
  date published: 2020-10-16