Sad C
type: MusicGroup
popularity: 12
followers: 106
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0789f844b167b7b49c4d6ef27270132cff7a3cc343c41ebfc73f7979cb88290d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953746
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953746
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4d236a3-47fa-4f39-afe8-54d5e4638d05.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4d236a3-47fa-4f39-afe8-54d5e4638d05.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4d236a3-47fa-4f39-afe8-54d5e4638d05
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T05:25:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0789f844b167b7b49c4d6ef27270132cff7a3cc343c41ebfc73f7979cb88290d","name":"Sad C","registered_at":"2026-06-14T21:53:52Z","symbol":"NIM0587865","token_address":"0x75c4673565922ed60cbcb37e6b1ed2f9e8e09971","type":"artist","uuid":"a4d236a3-47fa-4f39-afe8-54d5e4638d05"}
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 0x0789f844b167b7b49c4d6ef27270132cff7a3cc343c41ebfc73f7979cb88290d. Chain 2 (Bitcoin): anchored in block 953746 (2026-06-15T05:25:34Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4d236a3-47fa-4f39-afe8-54d5e4638d05.json and https://artists.proofprofile.net/proofs/artist/a4d236a3-47fa-4f39-afe8-54d5e4638d05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T05:25:34Z
  text: {"copyright_id":"0x0789f844b167b7b49c4d6ef27270132cff7a3cc343c41ebfc73f7979cb88290d","name":"Sad C","registered_at":"2026-06-14T21:53:52Z","symbol":"NIM0587865","token_address":"0x75c4673565922ed60cbcb37e6b1ed2f9e8e09971","type":"artist","uuid":"a4d236a3-47fa-4f39-afe8-54d5e4638d05"}
album: Sentli Koyoualli
  type: MusicAlbum
  date published: 2012-12-01
album: Garabatos
  type: MusicAlbum
  date published: 2021-09-03
album: R.A.P. Mi Visión (Manifiesto de los reales)
  type: MusicAlbum
  date published: 2021-10-22
album: Bienvenido seas
  type: MusicAlbum
  date published: 2021-10-28
album: Berlin Sessions
  type: MusicAlbum
  date published: 2021-12-11
album: Eclipse
  type: MusicAlbum
  date published: 2022-01-21
album: Ciudades Oscuras
  type: MusicAlbum
  date published: 2022-09-06
album: Retrospectiva
  type: MusicAlbum
  date published: 2024-06-03
track: Babylon City

Babylon City
type: MusicRecording
duration: PT3M17S
duration ms: 197553
explicit: false
by artist: PTK
by artist: Sad C
in album: Ungerächte Welt
  type: MusicAlbum
  date published: 2017-06-30
isrc code: DEQ121745349
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-08T13:22:34+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x297c1861b7e8cb296ab2100934224d6d3de52cf4bb1f4ed3afd5428c073c7f5e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953520
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953520
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEQ121745349
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-13T13:32:09+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: 953520
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-06-13T13:32:09+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 0x297c1861b7e8cb296ab2100934224d6d3de52cf4bb1f4ed3afd5428c073c7f5e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEQ121745349.
  date published: 2026-06-13T15:41:10Z
audio: Babylon City
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 113.793
  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: 0.559
  additional property: Energy
    type: PropertyValue
    value: 0.797
  additional property: Speechiness
    type: PropertyValue
    value: 0.066
  additional property: Acousticness
    type: PropertyValue
    value: 0.038
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.377
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.087
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.315
  additional property: Key Name
    type: PropertyValue
    value: B
  additional property: Mode Name
    type: PropertyValue
    value: Minor