CMU C Sharp
type: MusicGroup
genre: choral
popularity: 2
followers: 57
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xed9b4cdb72910f912fa20142a3fd784cba3cd88933fdb8cce95a699f59fdb709
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc08b544-76eb-45b9-bc52-babebe2c4d9e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc08b544-76eb-45b9-bc52-babebe2c4d9e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fc08b544-76eb-45b9-bc52-babebe2c4d9e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xed9b4cdb72910f912fa20142a3fd784cba3cd88933fdb8cce95a699f59fdb709","name":"CMU C Sharp","registered_at":"2026-06-21T17:21:23Z","symbol":"NIM1984507","token_address":"0x62bd30a1a8f5359bbbf2ea9cce5fd773afb83aab","type":"artist","uuid":"fc08b544-76eb-45b9-bc52-babebe2c4d9e"}
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 0xed9b4cdb72910f912fa20142a3fd784cba3cd88933fdb8cce95a699f59fdb709. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fc08b544-76eb-45b9-bc52-babebe2c4d9e.json and https://artists.proofprofile.net/proofs/artist/fc08b544-76eb-45b9-bc52-babebe2c4d9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xed9b4cdb72910f912fa20142a3fd784cba3cd88933fdb8cce95a699f59fdb709","name":"CMU C Sharp","registered_at":"2026-06-21T17:21:23Z","symbol":"NIM1984507","token_address":"0x62bd30a1a8f5359bbbf2ea9cce5fd773afb83aab","type":"artist","uuid":"fc08b544-76eb-45b9-bc52-babebe2c4d9e"}
album: D Flat Singers
  type: MusicAlbum
  date published: 2023-11-03
album: C Sharp Singers
  type: MusicAlbum
  date published: 2023-11-03
album: C Sharp Anthology
  type: MusicAlbum
  date published: 2023-11-03
album: Kalkadunga Yurdu
  type: MusicAlbum
  date published: 2024-07-26
  track: Kalkadunga Yurdu
album: Blooms of May
  type: MusicAlbum
  date published: 2024-07-25
album: Only Love
  type: MusicAlbum
  date published: 2024-07-08
album: Ocean Wide, Canyon Deep
  type: MusicAlbum
  date published: 2024-07-08
album: Night Will Come
  type: MusicAlbum
  date published: 2024-07-08
album: Lightning in a Bottle
  type: MusicAlbum
  date published: 2024-07-08

Kalkadunga Yurdu
type: MusicRecording
duration: PT2M53S
duration ms: 173863
explicit: false
by artist: CMU C Sharp
in album: Kalkadunga Yurdu
  type: MusicAlbum
  date published: 2024-07-26
isrc code: QZTAZ2465870
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-08T00:20:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb4ffa9815da8afaf6f1f0e470b91bd01276d35d83935a86ab33d68546dff0341
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAZ2465870
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ffa9815da8afaf6f1f0e470b91bd01276d35d83935a86ab33d68546dff0341. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZTAZ2465870.
  date published: 2026-07-08T08:56:20Z
audio: Kalkadunga Yurdu
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 95.89
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.389
  additional property: Energy
    type: PropertyValue
    value: 0.317
  additional property: Speechiness
    type: PropertyValue
    value: 0.058
  additional property: Acousticness
    type: PropertyValue
    value: 0.956
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.334
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.159
  additional property: Loudness (dB)
    type: PropertyValue
    value: -21.318
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Major