m4tthew
type: MusicGroup
popularity: 36
followers: 7050
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x722acc1d97cba474297e457f2748b48b990544f75fbe1108762598639ee50dfc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf827e79-354f-4700-8126-d97daecc00f2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf827e79-354f-4700-8126-d97daecc00f2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf827e79-354f-4700-8126-d97daecc00f2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722acc1d97cba474297e457f2748b48b990544f75fbe1108762598639ee50dfc. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf827e79-354f-4700-8126-d97daecc00f2.json and https://artists.proofprofile.net/proofs/artist/bf827e79-354f-4700-8126-d97daecc00f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Purple Jeans
  type: MusicAlbum
  date published: 2022-06-16
album: Talk Down!
  type: MusicAlbum
  date published: 2022-07-20
  track: Talk Down!
    type: MusicRecording
    duration: PT1M22S
    duration ms: 82573
    explicit: true
    by artist: m4tthew
    in album: Talk Down!
      type: MusicAlbum
      date published: 2022-07-20
    isrc code: QZMEM2275193
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T08:07:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8bb5e7ccb8c5a668f3b5ba6d500cad8d614ae702fe90f831d68c50f2433b3d54
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957676
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957676
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMEM2275193
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T08:20:25Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bb5e7ccb8c5a668f3b5ba6d500cad8d614ae702fe90f831d68c50f2433b3d54. Chain 2 (Bitcoin): anchored in block 957676 (2026-07-12T08:20:25Z), 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/QZMEM2275193.
      date published: 2026-07-12T08:20:25Z
    audio: Talk Down!
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 73.664
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.338
      additional property: Energy
        type: PropertyValue
        value: 0.621
      additional property: Speechiness
        type: PropertyValue
        value: 0.366
      additional property: Acousticness
        type: PropertyValue
        value: 0.014
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.394
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.459
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.599
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: glue
  type: MusicAlbum
  date published: 2023-03-21
  track: glue
    type: MusicRecording
    duration: PT2M2S
    duration ms: 122441
    explicit: false
    by artist: m4tthew
    in album: glue
      type: MusicAlbum
      date published: 2023-03-21
    isrc code: QZHN32375719
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T09:56:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x46c3b0923c4b4e42ac887495bae8a8a68d7906b1489f5b6747b9877e1a7403d4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958395
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958395
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32375719
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T10:10:33Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46c3b0923c4b4e42ac887495bae8a8a68d7906b1489f5b6747b9877e1a7403d4. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZHN32375719.
      date published: 2026-07-17T10:10:33Z
    audio: glue
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.921
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.583
      additional property: Energy
        type: PropertyValue
        value: 0.591
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.046
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.034
      additional property: Liveness
        type: PropertyValue
        value: 0.283
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.238
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: imwhatahoeneed
album: b-side
album: sky
album: slowly
album: lifestyle
album: favorite one
album: money order
album: quarterpound
album: g5plane
album: bubbly
album: all night
album: RUNWAY
album: WAREHOUSE MUSIC
track: say it to me

Loudness (dB)
type: PropertyValue
value: -6.874

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Minor

imwhatahoeneed
type: MusicAlbum
date published: 2023-04-16

imwhatahoeneed
type: MusicAlbum
date published: 2023-04-16

imwhatahoeneed
type: MusicAlbum
date published: 2023-04-16

b-side
type: MusicAlbum
date published: 2023-05-04

sky
type: MusicAlbum
date published: 2023-05-04

slowly
type: MusicAlbum
date published: 2023-08-08

lifestyle
type: MusicAlbum
date published: 2023-12-28

lifestyle
type: MusicAlbum
date published: 2023-12-28

lifestyle
type: MusicAlbum
date published: 2023-12-28

favorite one
type: MusicAlbum
date published: 2024-03-29

favorite one
type: MusicAlbum
date published: 2024-03-29

money order
type: MusicAlbum
date published: 2024-06-28

quarterpound
type: MusicAlbum
date published: 2024-08-16

g5plane
type: MusicAlbum
date published: 2024-11-15

bubbly
type: MusicAlbum
date published: 2025-02-14

all night
type: MusicAlbum
date published: 2025-05-16

RUNWAY
type: MusicAlbum
date published: 2025-08-08

WAREHOUSE MUSIC
type: MusicAlbum
date published: 2025-09-12

say it to me
type: MusicRecording
duration: PT2M26S
duration ms: 146353
explicit: false
by artist: nabh
by artist: m4tthew
in album: PRODIGY
  type: MusicAlbum
  date published: 2025-02-14
isrc code: QZPEW2575755
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-21T00:59:53+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x31a1725b26b1a0a29c81f5a188175330e0bf95a614980b8b969d087e98ca9513
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/QZPEW2575755
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a1725b26b1a0a29c81f5a188175330e0bf95a614980b8b969d087e98ca9513. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/QZPEW2575755.
  date published: 2026-07-02T03:30:09Z
audio: say it to me
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 121.441
  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: 0.693
  additional property: Energy
    type: PropertyValue
    value: 0.402
  additional property: Speechiness
    type: PropertyValue
    value: 0.069
  additional property: Acousticness
    type: PropertyValue
    value: 0.022
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.596
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.071
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.67
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor