bc.einstein
type: MusicGroup
popularity: 15
followers: 358
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f0efa2cbb68eb6295e5ce23c82f9990595bdc55cf2725d1ebe8fe2941fd61d0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953691
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953691
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a67ba6e-2da3-4340-a9a5-cf3b54541159.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6a67ba6e-2da3-4340-a9a5-cf3b54541159.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6a67ba6e-2da3-4340-a9a5-cf3b54541159
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T20:39:17Z
additional property: OTSCanonicalRecord
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 0x4f0efa2cbb68eb6295e5ce23c82f9990595bdc55cf2725d1ebe8fe2941fd61d0. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6a67ba6e-2da3-4340-a9a5-cf3b54541159.json and https://artists.proofprofile.net/proofs/artist/6a67ba6e-2da3-4340-a9a5-cf3b54541159.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T20:39:17Z
album: just for you vol. 2 : a beat tape by bc.einstein
  type: MusicAlbum
  date published: 2017-09-28
album: Black Feathers
  type: MusicAlbum
  date published: 2017-10-02
album: Black Feathers
  type: MusicAlbum
  date published: 2017-10-02
album: LAX
  type: MusicAlbum
  date published: 2017-10-10
album: 84121
  type: MusicAlbum
  date published: 2017-10-18
album: Just for You
  type: MusicAlbum
  date published: 2018-05-10
album: Spliff to This
  type: MusicAlbum
  date published: 2018-06-06
album: The Month After May
  type: MusicAlbum
  date published: 2018-06-11
album: Here and Now
  type: MusicAlbum
  date published: 2018-08-31
album: Munchie$
  type: MusicAlbum
  date published: 2018-12-08
album: AMS
  type: MusicAlbum
  date published: 2019-02-24
album: Dance With Me
  type: MusicAlbum
  date published: 2019-08-07
album: On the Set
  type: MusicAlbum
  date published: 2019-09-06
album: Rotate
  type: MusicAlbum
  date published: 2020-02-22
album: JustEnuff
  type: MusicAlbum
  date published: 2020-03-06
track: sexaphone

sexaphone
type: MusicRecording
duration: PT1M57S
duration ms: 117057
explicit: false
by artist: expand or expire.
by artist: bc.einstein
by artist: twuan
by artist: chief.
in album: expand or expire. [vol. 4]
  type: MusicAlbum
  date published: 2017-10-03
isrc code: QM42K1737483
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-18T20:18:28+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8b845938a30bcf0f6ec53be164a46595c4f80cd9342c65311f29f146a567dd42
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956302
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM42K1737483
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+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: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+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 0x8b845938a30bcf0f6ec53be164a46595c4f80cd9342c65311f29f146a567dd42. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM42K1737483.
  date published: 2026-07-02T03:55:08Z
audio: sexaphone
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 128.341
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.696
  additional property: Energy
    type: PropertyValue
    value: 0.381
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.024
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.385
  additional property: Liveness
    type: PropertyValue
    value: 0.081
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.312
  additional property: Loudness (dB)
    type: PropertyValue
    value: -13.058
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor