Math and Physics Club
type: MusicGroup
genre: indie pop
genre: jangle pop
description: Math and Physics Club are an American indie pop band based in Seattle, Washington, United States. Its members are Charles Bert (vocals, rhythm guitar) and Ethan Jones (bass, keyboards). James Werle pl
popularity: 14
followers: 7206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x68c9d0ae176a0a3a9ff23fa753259469869886067bff256a6380f68357b1cc1f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6db24ef9-7d28-4e60-82af-90620c09efc4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6db24ef9-7d28-4e60-82af-90620c09efc4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6db24ef9-7d28-4e60-82af-90620c09efc4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x68c9d0ae176a0a3a9ff23fa753259469869886067bff256a6380f68357b1cc1f","name":"Math and Physics Club","registered_at":"2026-06-14T15:54:41Z","symbol":"NIM0502236","token_address":"0x8036f8341cbfa561fe8319143c4246a711ae569e","type":"artist","uuid":"6db24ef9-7d28-4e60-82af-90620c09efc4"}
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 0x68c9d0ae176a0a3a9ff23fa753259469869886067bff256a6380f68357b1cc1f. Chain 2 (Bitcoin): anchored in block 953695 (2026-06-14T21:42:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6db24ef9-7d28-4e60-82af-90620c09efc4.json and https://artists.proofprofile.net/proofs/artist/6db24ef9-7d28-4e60-82af-90620c09efc4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:42:01Z
  text: {"copyright_id":"0x68c9d0ae176a0a3a9ff23fa753259469869886067bff256a6380f68357b1cc1f","name":"Math and Physics Club","registered_at":"2026-06-14T15:54:41Z","symbol":"NIM0502236","token_address":"0x8036f8341cbfa561fe8319143c4246a711ae569e","type":"artist","uuid":"6db24ef9-7d28-4e60-82af-90620c09efc4"}
album: Weekends Away EP
  type: MusicAlbum
  date published: 2005-02-28
album: Movie Ending Romance EP
  type: MusicAlbum
  date published: 2005-07-18
album: Math and Physics Club
  type: MusicAlbum
  date published: 2006-10-16
  track: Darling, Please Come Home
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192760
    explicit: false
    by artist: Math and Physics Club
    in album: Math and Physics Club
      type: MusicAlbum
      date published: 2006-10-16
    genre: indie pop
    genre: jangle pop
    isrc code: USGDD0684201
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T21:21:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x94136020a089160bde6f3bfd1b001921277b3c96d4cdecb89e938e409a5287a1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958069
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958069
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGDD0684201
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T21:37:55Z
    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 0x94136020a089160bde6f3bfd1b001921277b3c96d4cdecb89e938e409a5287a1. Chain 2 (Bitcoin): anchored in block 958069 (2026-07-14T21:37:55Z), 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/USGDD0684201.
      date published: 2026-07-14T21:37:55Z
    audio: Darling, Please Come Home
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.799
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.598
      additional property: Energy
        type: PropertyValue
        value: 0.759
      additional property: Speechiness
        type: PropertyValue
        value: 0.024
      additional property: Acousticness
        type: PropertyValue
        value: 0.319
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.126
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.802
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.248
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: I Know What I Want
    type: MusicRecording
    duration: PT2M21S
    duration ms: 141120
    explicit: false
    by artist: Math and Physics Club
    in album: Math and Physics Club
      type: MusicAlbum
      date published: 2006-10-16
    genre: indie pop
    genre: jangle pop
    isrc code: USGDD0684202
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T23:38:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x606ac370cd08a93a1c55d7852ca6ec40b495922b34f03ad3b6a9933e5ac43261
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958216
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958216
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGDD0684202
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T00:00:34Z
    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 0x606ac370cd08a93a1c55d7852ca6ec40b495922b34f03ad3b6a9933e5ac43261. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USGDD0684202.
      date published: 2026-07-16T00:00:34Z
    audio: I Know What I Want
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.198
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.576
      additional property: Energy
        type: PropertyValue
        value: 0.681
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
  track: April Showers
  track: Cold As Minnesota
album: Baby I'm Yours EP
album: Jimmy Had A Polaroid - 7" Single
album: I Shouldn't Look As Good As I Do
album: Long Drag 7"
album: Our Hearts Beat out Loud
album: In This Together
album: All the Mains are Down
album: All the Mains Are Down
album: Lived Here Before
album: Indian Ocean

Acousticness
type: PropertyValue
value: 0.105

Instrumentalness
type: PropertyValue
value: 0.01

Liveness
type: PropertyValue
value: 0.105

Valence (Positivity)
type: PropertyValue
value: 0.844

Loudness (dB)
type: PropertyValue
value: -8.127

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Major

April Showers
type: MusicRecording
duration: PT2M32S
duration ms: 152386
explicit: false
by artist: Math and Physics Club
in album: Math and Physics Club
  type: MusicAlbum
  date published: 2006-10-16
genre: indie pop
genre: jangle pop
isrc code: USGDD0684203
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T18:46:33+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x69888a6697d383084f7d6c5dc9c0d370d4a5c8f6d0f1e3c90a20c1ee973f1cb3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958771
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958771
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGDD0684203
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-19T21:49:24Z
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 0x69888a6697d383084f7d6c5dc9c0d370d4a5c8f6d0f1e3c90a20c1ee973f1cb3. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:49:24Z), 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/USGDD0684203.
  date published: 2026-07-19T21:49:24Z
audio: April Showers
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 177.525
  additional property: Musical Key
    type: PropertyValue
    value: 0
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.522
  additional property: Energy
    type: PropertyValue
    value: 0.766
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.064
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.46
  additional property: Liveness
    type: PropertyValue
    value: 0.199
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.748
  additional property: Loudness (dB)
    type: PropertyValue
    value: -7.183
  additional property: Key Name
    type: PropertyValue
    value: C
  additional property: Mode Name
    type: PropertyValue
    value: Major

Cold As Minnesota
type: MusicRecording
duration: PT3M8S
duration ms: 188626
explicit: false
by artist: Math and Physics Club
in album: Math and Physics Club
  type: MusicAlbum
  date published: 2006-10-16
genre: indie pop
genre: jangle pop
isrc code: USGDD0684208
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T16:07:19+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4e8d99637e4e86522f565ccd98cbcdd12038f3365bd827882313cf6fae67709
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956728
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGDD0684208
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:43:49Z
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 0xc4e8d99637e4e86522f565ccd98cbcdd12038f3365bd827882313cf6fae67709. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USGDD0684208.
  date published: 2026-07-05T01:43:49Z
audio: Cold As Minnesota
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 193.568
  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: 0.487
  additional property: Energy
    type: PropertyValue
    value: 0.645
  additional property: Speechiness
    type: PropertyValue
    value: 0.049
  additional property: Acousticness
    type: PropertyValue
    value: 0.071
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.001
  additional property: Liveness
    type: PropertyValue
    value: 0.115
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.805
  additional property: Loudness (dB)
    type: PropertyValue
    value: -8.362
  additional property: Key Name
    type: PropertyValue
    value: D
  additional property: Mode Name
    type: PropertyValue
    value: Major

Baby I'm Yours EP
type: MusicAlbum
date published: 2007-10-09

Jimmy Had A Polaroid - 7" Single
type: MusicAlbum
date published: 2010-06-01

I Shouldn't Look As Good As I Do
type: MusicAlbum
date published: 2010-06-08
track: Jimmy Had A Polaroid
  type: MusicRecording
  duration: PT2M27S
  duration ms: 147066
  explicit: false
  by artist: Math and Physics Club
  in album: I Shouldn't Look As Good As I Do
    type: MusicAlbum
    date published: 2010-06-08
  genre: indie pop
  genre: jangle pop
  isrc code: USGDD1085501
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T18:10:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc5874aa1d62017423b2aaf0f940b748c082f6d48d9debc50e0b76d73ef941aee
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958448
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958448
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGDD1085501
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T19:49:21Z
  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 0xc5874aa1d62017423b2aaf0f940b748c082f6d48d9debc50e0b76d73ef941aee. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USGDD1085501.
    date published: 2026-07-17T19:49:21Z
  audio: Jimmy Had A Polaroid
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 90.993
    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: 0.524
    additional property: Energy
      type: PropertyValue
      value: 0.838
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.026
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.062
    additional property: Liveness
      type: PropertyValue
      value: 0.147
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.764
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.055
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Will You Still Love Me?
  type: MusicRecording
  duration: PT2M0S
  duration ms: 120693
  explicit: false
  by artist: Math and Physics Club
  in album: I Shouldn't Look As Good As I Do
    type: MusicAlbum
    date published: 2010-06-08
  genre: indie pop
  genre: jangle pop
  isrc code: USGDD1085506
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T09:17:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x09d006d0103397b6f7406032a9a84d76cb4225b1ebdd6f6e06407f41aa37625a
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956790
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956790
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USGDD1085506
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-05T12:31:54Z
  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 0x09d006d0103397b6f7406032a9a84d76cb4225b1ebdd6f6e06407f41aa37625a. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/USGDD1085506.
    date published: 2026-07-05T12:31:54Z
  audio: Will You Still Love Me?
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.063
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.656
    additional property: Energy
      type: PropertyValue
      value: 0.945
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.101
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.135
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.952
    additional property: Loudness (dB)
      type: PropertyValue
      value: -4.822
    additional property: Key Name
      type: PropertyValue
      value: Ab
    additional property: Mode Name
      type: PropertyValue
      value: Major

Long Drag 7"
type: MusicAlbum
date published: 2013-07-30

Our Hearts Beat out Loud
type: MusicAlbum
date published: 2013-11-19

In This Together
type: MusicAlbum
date published: 2016-06-24

In This Together
type: MusicAlbum
date published: 2016-06-24

All the Mains are Down
type: MusicAlbum
date published: 2017-11-03

All the Mains Are Down
type: MusicAlbum
date published: 2017-11-03

Lived Here Before
type: MusicAlbum
date published: 2018-01-26

Lived Here Before
type: MusicAlbum
date published: 2018-01-26

Indian Ocean
type: MusicAlbum
date published: 2019-12-13