Leather Lung
type: MusicGroup
genre: doom metal
genre: sludge metal
genre: stoner rock
popularity: 18
followers: 5368
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6fcf45fa64088fbb3b96255d7af7119a9f82af766b77b0d6c10f29162447835d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9ad7a350-d240-4551-919e-8993686291cc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9ad7a350-d240-4551-919e-8993686291cc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9ad7a350-d240-4551-919e-8993686291cc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6fcf45fa64088fbb3b96255d7af7119a9f82af766b77b0d6c10f29162447835d","name":"Leather Lung","registered_at":"2026-06-14T20:49:27Z","symbol":"NIM0572497","token_address":"0x18ca81eadbf473796192a7bd0b5af1d86633b175","type":"artist","uuid":"9ad7a350-d240-4551-919e-8993686291cc"}
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 0x6fcf45fa64088fbb3b96255d7af7119a9f82af766b77b0d6c10f29162447835d. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ad7a350-d240-4551-919e-8993686291cc.json and https://artists.proofprofile.net/proofs/artist/9ad7a350-d240-4551-919e-8993686291cc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x6fcf45fa64088fbb3b96255d7af7119a9f82af766b77b0d6c10f29162447835d","name":"Leather Lung","registered_at":"2026-06-14T20:49:27Z","symbol":"NIM0572497","token_address":"0x18ca81eadbf473796192a7bd0b5af1d86633b175","type":"artist","uuid":"9ad7a350-d240-4551-919e-8993686291cc"}
album: Reap What You Sow
  type: MusicAlbum
  date published: 2014-10-10
album: Lost in Temptation
  type: MusicAlbum
  date published: 2016-11-22
  track: The Spice Melange (Interlude)
    type: MusicRecording
    duration: PT1M24S
    duration ms: 84149
    explicit: false
    by artist: Leather Lung
    in album: Lost in Temptation
      type: MusicAlbum
      date published: 2016-11-22
    genre: doom metal
    genre: sludge metal
    genre: stoner rock
    isrc code: TCACU1632595
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T04:08:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x25be7c5ebf0907004bb6384625ec4736e636837067d3ed9d654756e1a846d526
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958491
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958491
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACU1632595
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:29:42Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25be7c5ebf0907004bb6384625ec4736e636837067d3ed9d654756e1a846d526. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/TCACU1632595.
      date published: 2026-07-18T04:29:42Z
    audio: The Spice Melange (Interlude)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.853
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.334
      additional property: Energy
        type: PropertyValue
        value: 0.652
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.009
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.803
      additional property: Liveness
        type: PropertyValue
        value: 0.155
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.301
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.131
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Gin & Chronic
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176260
    explicit: true
    by artist: Leather Lung
    in album: Lost in Temptation
      type: MusicAlbum
      date published: 2016-11-22
    genre: doom metal
    genre: sludge metal
    genre: stoner rock
    isrc code: TCACU1632597
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T08:36:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x64e7d2fa036f23ebc0ede6ffcecec86e70f138c3babe29325d9fd6a3a0026c3a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958271
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958271
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCACU1632597
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T09:16:54Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64e7d2fa036f23ebc0ede6ffcecec86e70f138c3babe29325d9fd6a3a0026c3a. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/TCACU1632597.
      date published: 2026-07-16T09:16:54Z
    audio: Gin & Chronic
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.006
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.274
      additional property: Energy
        type: PropertyValue
        value: 0.94
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Lonesome, On'ry and Evil
album: Ain't Feelin' No Pain
album: Israel's Son
album: Dive Bar Devil
album: Spit in the Casket
album: Empty Bottle Boogie
album: Guilty Pleasure
album: Graveside Grin

Instrumentalness
type: PropertyValue
value: 0.123

Liveness
type: PropertyValue
value: 0.085

Valence (Positivity)
type: PropertyValue
value: 0.321

Loudness (dB)
type: PropertyValue
value: -4.366

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Lonesome, On'ry and Evil
type: MusicAlbum
date published: 2019-06-28
track: Barbed Wire
  type: MusicRecording
  duration: PT4M40S
  duration ms: 280800
  explicit: true
  by artist: Leather Lung
  in album: Lonesome, On'ry and Evil
    type: MusicAlbum
    date published: 2019-06-28
  genre: doom metal
  genre: sludge metal
  genre: stoner rock
  isrc code: QM6N21956721
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T03:33:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xdfefafd5cd22f684dee5151f10af74e7c8a7891fe6f1f08c6eedaf8530914697
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958959
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958959
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21956721
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T03:51:22Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfefafd5cd22f684dee5151f10af74e7c8a7891fe6f1f08c6eedaf8530914697. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QM6N21956721.
    date published: 2026-07-21T03:51:22Z
  audio: Barbed Wire
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 84.675
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.27
    additional property: Energy
      type: PropertyValue
      value: 0.937
    additional property: Speechiness
      type: PropertyValue
      value: 0.065
    additional property: Acousticness
      type: PropertyValue
      value: 0.002
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.924
    additional property: Liveness
      type: PropertyValue
      value: 0.113
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.416
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.038
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Dirty Mangy Dog
  type: MusicRecording
  duration: PT4M8S
  duration ms: 248337
  explicit: true
  by artist: Leather Lung
  in album: Lonesome, On'ry and Evil
    type: MusicAlbum
    date published: 2019-06-28
  genre: doom metal
  genre: sludge metal
  genre: stoner rock
  isrc code: QM6N21956722
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T02:37:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x20c203596e92f65f18c4681f8d7029bddd11952693f7272438d4b0312c0c87d2
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958357
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958357
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21956722
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T03:33:42Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c203596e92f65f18c4681f8d7029bddd11952693f7272438d4b0312c0c87d2. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QM6N21956722.
    date published: 2026-07-17T03:33:42Z
  audio: Dirty Mangy Dog
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 84.997
    additional property: Musical Key
      type: PropertyValue
      value: 6
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.364
    additional property: Energy
      type: PropertyValue
      value: 0.877
    additional property: Speechiness
      type: PropertyValue
      value: 0.043
    additional property: Acousticness
      type: PropertyValue
      value: 0.009
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.96
    additional property: Liveness
      type: PropertyValue
      value: 0.115
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.495
    additional property: Loudness (dB)
      type: PropertyValue
      value: -6.534
    additional property: Key Name
      type: PropertyValue
      value: F#
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Ain't Feelin' No Pain
  type: MusicRecording
  duration: PT4M25S
  duration ms: 265948
  explicit: true
  by artist: Leather Lung
  in album: Lonesome, On'ry and Evil
    type: MusicAlbum
    date published: 2019-06-28
  genre: doom metal
  genre: sludge metal
  genre: stoner rock
  isrc code: QM6N21956724
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-19T11:21:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x29596dfe26f689f3cccdf806e581ea093a76b6ef9244d980f09fbaa7c3753887
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Ain't Feelin' No Pain
track: Miscreant

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 958726

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/958726

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21956724

OTSTimestamp
type: PropertyValue
value: 2026-07-19T11:47:20Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29596dfe26f689f3cccdf806e581ea093a76b6ef9244d980f09fbaa7c3753887. Chain 2 (Bitcoin): anchored in block 958726 (2026-07-19T11:47:20Z), 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/QM6N21956724.
date published: 2026-07-19T11:47:20Z

Ain't Feelin' No Pain
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 122.946
additional property: Musical Key
  type: PropertyValue
  value: 4
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 3
additional property: Danceability
  type: PropertyValue
  value: 0.309
additional property: Energy
  type: PropertyValue
  value: 0.886
additional property: Speechiness
  type: PropertyValue
  value: 0.059
additional property: Acousticness
  type: PropertyValue
  value: 0.004
additional property: Instrumentalness
  type: PropertyValue
  value: 0.912
additional property: Liveness
  type: PropertyValue
  value: 0.078
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.572
additional property: Loudness (dB)
  type: PropertyValue
  value: -6.223
additional property: Key Name
  type: PropertyValue
  value: E
additional property: Mode Name
  type: PropertyValue
  value: Major

Miscreant
type: MusicRecording
duration: PT4M5S
duration ms: 245388
explicit: false
by artist: Leather Lung
in album: Lonesome, On'ry and Evil
  type: MusicAlbum
  date published: 2019-06-28
genre: doom metal
genre: sludge metal
genre: stoner rock
isrc code: QM6N21956725
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-05T16:59:21+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd65a6e627876bd2992fff19bd2d2da4c104f42b1a3912806686e8e06f5249e69
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956826
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956826
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21956725
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T19:27:56Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd65a6e627876bd2992fff19bd2d2da4c104f42b1a3912806686e8e06f5249e69. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QM6N21956725.
  date published: 2026-07-05T19:27:56Z
audio: Miscreant
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 103.466
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 3
  additional property: Danceability
    type: PropertyValue
    value: 0.315
  additional property: Energy
    type: PropertyValue
    value: 0.82
  additional property: Speechiness
    type: PropertyValue
    value: 0.044
  additional property: Acousticness
    type: PropertyValue
    value: 0.014
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.891
  additional property: Liveness
    type: PropertyValue
    value: 0.091
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.25
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.46
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Minor

Lonesome, On'ry and Evil
type: MusicAlbum
date published: 2019-06-28

Ain't Feelin' No Pain
type: MusicAlbum
date published: 2019-07-26

Lonesome, On'ry and Evil
type: MusicAlbum
date published: 2019-08-23

Israel's Son
type: MusicAlbum
date published: 2020-04-20

Israel's Son
type: MusicAlbum
date published: 2020-04-20

Dive Bar Devil
type: MusicAlbum
date published: 2022-05-05
track: Pissing Gasoline
  type: MusicRecording
  duration: PT3M4S
  duration ms: 184345
  explicit: true
  by artist: Leather Lung
  in album: Dive Bar Devil
    type: MusicAlbum
    date published: 2022-05-05
  genre: doom metal
  genre: sludge metal
  genre: stoner rock
  isrc code: DES562210453
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-20T22:05:23+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb02283d4d3795083dd309ec794f01835f3606668c8592fea2ebba33f5479e7c7
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958942
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958942
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES562210453
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T00:24:07Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb02283d4d3795083dd309ec794f01835f3606668c8592fea2ebba33f5479e7c7. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/DES562210453.
    date published: 2026-07-21T00:24:07Z
  audio: Pissing Gasoline
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 82.813
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.317
    additional property: Energy
      type: PropertyValue
      value: 0.953
    additional property: Speechiness
      type: PropertyValue
      value: 0.105
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.161
    additional property: Liveness
      type: PropertyValue
      value: 0.137
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.188
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.435
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major

Spit in the Casket
type: MusicAlbum
date published: 2023-12-19

Empty Bottle Boogie
type: MusicAlbum
date published: 2024-01-18

Guilty Pleasure
type: MusicAlbum
date published: 2024-02-14

Graveside Grin
type: MusicAlbum
date published: 2024-03-15
track: Spit in the Casket
  type: MusicRecording
  duration: PT4M45S
  duration ms: 285813
  explicit: false
  by artist: Leather Lung
  in album: Graveside Grin
    type: MusicAlbum
    date published: 2024-03-15
  genre: doom metal
  genre: sludge metal
  genre: stoner rock
  isrc code: DES562411522
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
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    value: 2026-07-15T14:49:22+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x65e478e7d4eb4b9aed956e8bc745fe6c485762f67381a42a36b527bba1c4a6fb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958169
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES562411522
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T17:52:20Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e478e7d4eb4b9aed956e8bc745fe6c485762f67381a42a36b527bba1c4a6fb. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:52:20Z), 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/DES562411522.
    date published: 2026-07-15T17:52:20Z
  audio: Spit in the Casket
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.154
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.284
    additional property: Energy
      type: PropertyValue
      value: 0.951
    additional property: Speechiness
      type: PropertyValue
      value: 0.086
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.197
    additional property: Liveness
      type: PropertyValue
      value: 0.302
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.132
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.4
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Big Bad Bodega Cat
  type: MusicRecording
  duration: PT3M49S
  duration ms: 229853
  explicit: false
  by artist: Leather Lung
  in album: Graveside Grin
    type: MusicAlbum
    date published: 2024-03-15
  genre: doom metal
  genre: sludge metal
  genre: stoner rock
  isrc code: DES562411523
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-04T18:17:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xcaf07b1529634555a4c65bbbb1078b9570f84ec58b3ae23593692a4087ce9ea6
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956725
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956725
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES562411523
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T01:12:41Z
  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
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf07b1529634555a4c65bbbb1078b9570f84ec58b3ae23593692a4087ce9ea6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DES562411523.
    date published: 2026-07-05T01:12:41Z
  audio: Big Bad Bodega Cat
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 85.55
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.385
    additional property: Energy
      type: PropertyValue
      value: 0.957
    additional property: Speechiness
      type: PropertyValue
      value: 0.061
    additional property: Acousticness
      type: PropertyValue
      value: 0
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.164
    additional property: Liveness
      type: PropertyValue
      value: 0.065
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.447
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.403
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Freewheelin' Maniac
  type: MusicRecording
  duration: PT3M19S
  duration ms: 199120
  explicit: false
  by artist: Leather Lung
  in album: Graveside Grin
    type: MusicAlbum
    date published: 2024-03-15
  genre: doom metal
  genre: sludge metal
  genre: stoner rock
  isrc code: DES562411524
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T16:11:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x22b5f6dc5ad4dcaad520d1f9047e10239555cdc90bbdaf77c478c13decf2a493
  additional property: OTSHash
  additional property: OTSBitcoinBlock
  additional property: OTSBitcoinBlockVerifyURL
  additional property: OTSVerificationAPI
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Freewheelin' Maniac
track: Empty Bottle Boogie

OTSHash
type: PropertyValue

OTSBitcoinBlock
type: PropertyValue
value: 956826

OTSBitcoinBlockVerifyURL
type: PropertyValue
value: https://blockstream.info/api/block-height/956826

OTSVerificationAPI
type: PropertyValue
value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES562411524

OTSTimestamp
type: PropertyValue
value: 2026-07-05T19:27:56Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b5f6dc5ad4dcaad520d1f9047e10239555cdc90bbdaf77c478c13decf2a493. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DES562411524.
date published: 2026-07-05T19:27:56Z

Freewheelin' Maniac
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 75.015
additional property: Musical Key
  type: PropertyValue
  value: 6
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.345
additional property: Energy
  type: PropertyValue
  value: 0.93
additional property: Speechiness
  type: PropertyValue
  value: 0.056
additional property: Acousticness
  type: PropertyValue
  value: 0
additional property: Instrumentalness
  type: PropertyValue
  value: 0.018
additional property: Liveness
  type: PropertyValue
  value: 0.268
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.562
additional property: Loudness (dB)
  type: PropertyValue
  value: -5.331
additional property: Key Name
  type: PropertyValue
  value: F#
additional property: Mode Name
  type: PropertyValue
  value: Minor

Empty Bottle Boogie
type: MusicRecording
duration: PT3M21S
duration ms: 201226
explicit: false
by artist: Leather Lung
in album: Graveside Grin
  type: MusicAlbum
  date published: 2024-03-15
genre: doom metal
genre: sludge metal
genre: stoner rock
isrc code: DES562411525
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T05:02:37+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x30353120af09b9634ff3827170094452c97750909993594f1ce88e4a36d10eb6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956639
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956639
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DES562411525
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-04T11:19:20Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30353120af09b9634ff3827170094452c97750909993594f1ce88e4a36d10eb6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DES562411525.
  date published: 2026-07-04T11:19:20Z
audio: Empty Bottle Boogie
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 147.572
  additional property: Musical Key
    type: PropertyValue
    value: 6
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.3
  additional property: Energy
    type: PropertyValue
    value: 0.94
  additional property: Speechiness
    type: PropertyValue
    value: 0.085
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.075
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.269
  additional property: Loudness (dB)
    type: PropertyValue
    value: -5.345
  additional property: Key Name
    type: PropertyValue
    value: F#
  additional property: Mode Name
    type: PropertyValue
    value: Minor