Lefty
type: MusicGroup
genre: bounce
genre: footwork
genre: melbourne bounce
popularity: 18
followers: 4199
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x615fc78cd0dffe7b509e5f247302a25f07f20e479bcac9901443248ae26962f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953778
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953778
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4f8cfe2-b0c1-4f90-9a34-2faa5e7efd53.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b4f8cfe2-b0c1-4f90-9a34-2faa5e7efd53.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b4f8cfe2-b0c1-4f90-9a34-2faa5e7efd53
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T11:57:35Z
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 0x615fc78cd0dffe7b509e5f247302a25f07f20e479bcac9901443248ae26962f2. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b4f8cfe2-b0c1-4f90-9a34-2faa5e7efd53.json and https://artists.proofprofile.net/proofs/artist/b4f8cfe2-b0c1-4f90-9a34-2faa5e7efd53.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
album: Lefty
  type: MusicAlbum
  date published: 1998-01-01
album: 4 3 2 1
  type: MusicAlbum
  date published: 2000-01-01
album: 4 3 2 1
  type: MusicAlbum
  date published: 2000-01-01
album: Nervous Breakthrough
  type: MusicAlbum
  date published: 2007-01-01
album: Accelerator
  type: MusicAlbum
  date published: 2007-01-01
album: And then there was Lefty
  type: MusicAlbum
  date published: 2010-02-26
album: Ode To Stace
  type: MusicAlbum
  date published: 2011-08-26
album: Bedroom Antics
  type: MusicAlbum
  date published: 2011-12-05
album: La voix du silence
  type: MusicAlbum
  date published: 2012
album: My Generation
  type: MusicAlbum
  date published: 2012-03-18
album: You Got Me (feat. Rebecca Lullio)
  type: MusicAlbum
  date published: 2012-06-11
album: Under The Dream
  type: MusicAlbum
  date published: 2012-08-23
album: Walk On Water
  type: MusicAlbum
  date published: 2012-10-06
album: La voix du silence
  type: MusicAlbum
  date published: 2012-12-21
album: We Came To (feat. Sutty & Paola)
  type: MusicAlbum
  date published: 2013-04-04
album: Flow
  type: MusicAlbum
  date published: 2013-04-25
album: What's That Noise
  type: MusicAlbum
  date published: 2013-04-26
album: Derka Der
  type: MusicAlbum
  date published: 2013-06-19
album: Flow
  type: MusicAlbum
  date published: 2013-09-30
album: Ghost Flows
  type: MusicAlbum
  date published: 2013-11-18
album: Ghost Flows
  type: MusicAlbum
  date published: 2013-12-02
album: Talk Shit
  type: MusicAlbum
  date published: 2014-05-12
album: Leftorium
  type: MusicAlbum
  date published: 2014-05-12
album: Bliss
  type: MusicAlbum
  date published: 2014-05-28
album: Right Now
  type: MusicAlbum
  date published: 2014-06-23
album: Fly
  type: MusicAlbum
  date published: 2014-08-01
album: This Is the One
  type: MusicAlbum
  date published: 2014-12-16
album: This Is the One
  type: MusicAlbum
  date published: 2014-12-16
album: Lefty
  type: MusicAlbum
  date published: 2015-03-26
album: Axiom
  type: MusicAlbum
  date published: 2015-04-27
album: Leftylicious
  type: MusicAlbum
  date published: 2015-06-12
album: Leftylicious
  type: MusicAlbum
  date published: 2015-06-12
album: Hoes
  type: MusicAlbum
  date published: 2015-08-24
album: Bhole
  type: MusicAlbum
  date published: 2016-07-28
album: Bhole
  type: MusicAlbum
  date published: 2016-07-28
album: All Hay'z On Me
  type: MusicAlbum
  date published: 2016-10-14
album: MC venu d'hayeurs
  type: MusicAlbum
  date published: 2016-10-28
album: Son Malos
  type: MusicAlbum
  date published: 2017-10-09
album: Una Mas del Barrio
  type: MusicAlbum
  date published: 2017-10-10
album: Insanos
  type: MusicAlbum
  date published: 2017-10-10
album: Buenas y Malas
  type: MusicAlbum
  date published: 2017-11-04
album: En Que Momento
  type: MusicAlbum
  date published: 2017-12-02
album: Sin Motivo
  type: MusicAlbum
  date published: 2018-02-03
album: Si Nos Cae la Placa
  type: MusicAlbum
  date published: 2018-03-07
album: Con los Ojos Rojos
  type: MusicAlbum
  date published: 2018-04-08
album: Flow (feat. Big Nab)
  type: MusicAlbum
  date published: 2018-05-04
album: Ghost Flows [feat. Xamplify]
  type: MusicAlbum
  date published: 2018-05-11
album: Say What (The Remixes)
  type: MusicAlbum
  date published: 2020-04-23
album: Orbital Temple
  type: MusicAlbum
  date published: 2023-04-07
album: The Circus
  type: MusicAlbum
  date published: 2025-09-09
track: No Me Va Importar
track: Intro
track: Carnalito De Aztlan
track: Ghost Flows - Chris Bullen Remix

No Me Va Importar
type: MusicRecording
duration: PT2M30S
duration ms: 150779
explicit: false
by artist: Pistolero Gunn Gunna
by artist: Sid MSC
by artist: Lefty
in album: Brindemos por Lo Bueno
  type: MusicAlbum
  date published: 2017-03-27
isrc code: USCGJ1746184
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-27T05:56:43+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf4a15013ba857cc26f9da9b8f2ad39e1765ff06bc225215576cafd575af6673
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ1746184
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+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: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+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 0xaf4a15013ba857cc26f9da9b8f2ad39e1765ff06bc225215576cafd575af6673. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USCGJ1746184.
  date published: 2026-07-02T05:09:12Z
audio: No Me Va Importar
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 158.801
  additional property: Musical Key
    type: PropertyValue
    value: 7
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.813
  additional property: Energy
    type: PropertyValue
    value: 0.725
  additional property: Speechiness
    type: PropertyValue
    value: 0.37
  additional property: Acousticness
    type: PropertyValue
    value: 0.268
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.041
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.766
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.245
  additional property: Key Name
    type: PropertyValue
    value: G
  additional property: Mode Name
    type: PropertyValue
    value: Major

Intro
type: MusicRecording
duration: PT3M24S
duration ms: 204500
explicit: false
by artist: K Koke
by artist: Lefty
by artist: Uncle Raymond
by artist: Mum
in album: Pure Koke, Vol. 4 (PK4)
  type: MusicAlbum
  date published: 2017-07-07
genre: uk-hip-hop
genre: london-rap
genre: grime
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee64a0e41a7eae269ccc60db23ae1613994a14bc6bc2c9cd0f108d1fee994da. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FR59R1787099.
  date published: 2026-07-29T21:09:47Z
audio: Intro
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 130.31
  additional property: Musical Key
    type: PropertyValue
    value: 2
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.543
  additional property: Energy
    type: PropertyValue
    value: 0.834
  additional property: Speechiness
    type: PropertyValue
    value: 0.455
  additional property: Acousticness
    type: PropertyValue
    value: 0.49
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.361
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.273
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.174
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: FR59R1787099
additional property: CopyrightID
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: 960144
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-29T21:09:47+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R1787099
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960144
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960144
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-29T21:09:47+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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Carnalito De Aztlan
type: MusicRecording
duration: PT3M56S
duration ms: 236986
explicit: false
by artist: Chino Grande
by artist: Lefty
in album: Still Active
  type: MusicAlbum
  date published: 2008-07-15
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff042ae6cc3b79a6c0270610f5fc865a1fc90a09be2803652fedc7187b36302. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USPRZ0810013.
  date published: 2026-07-30T05:15:54Z
audio: Carnalito De Aztlan
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 111.205
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.683
  additional property: Energy
    type: PropertyValue
    value: 0.403
  additional property: Speechiness
    type: PropertyValue
    value: 0.115
  additional property: Acousticness
    type: PropertyValue
    value: 0.857
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.726
  additional property: Liveness
    type: PropertyValue
    value: 0.194
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.482
  additional property: Loudness (dB)
    type: PropertyValue
    value: -15.819
  additional property: Key Name
    type: PropertyValue
    value: E
  additional property: Mode Name
    type: PropertyValue
    value: Minor
isrc code: USPRZ0810013
additional property: CopyrightID
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: 960209
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T05:15:54+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USPRZ0810013
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960209
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960209
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T05:15:54+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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch

Ghost Flows - Chris Bullen Remix
type: MusicRecording
duration: PT4M46S
duration ms: 286811
explicit: false
by artist: Chris Bullen
by artist: Lefty
by artist: Reecey Boi
by artist: Xamplify
in album: Melbourne Bounce
  type: MusicAlbum
  date published: 2014-02-03
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4271fdfdc76fa21030e394311764e9bead8c93c147143186fdc0ead977bcf929. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/US8DZ1301304.
  date published: 2026-07-30T09:37:10Z
audio: Ghost Flows - Chris Bullen Remix
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 137.066
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.797
  additional property: Energy
    type: PropertyValue
    value: 0.738
  additional property: Speechiness
    type: PropertyValue
    value: 0.451
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.29
  additional property: Liveness
    type: PropertyValue
    value: 0.065
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.546
  additional property: Loudness (dB)
    type: PropertyValue
    value: -9.662
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major
isrc code: US8DZ1301304
additional property: CopyrightID
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: 960236
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-30T09:37:10+00:00
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US8DZ1301304
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960236
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960236
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-30T09:37:10+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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch