The Chevra
type: MusicGroup
popularity: 20
followers: 12899
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x571d8f8ac4177105d8a3175c32541c937fea6c58daf1e97d51f714eff654d5b6
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/9effeac1-b619-496d-9d84-d98e1e27b650.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9effeac1-b619-496d-9d84-d98e1e27b650.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9effeac1-b619-496d-9d84-d98e1e27b650
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x571d8f8ac4177105d8a3175c32541c937fea6c58daf1e97d51f714eff654d5b6","name":"The Chevra","registered_at":"2026-06-14T21:17:10Z","symbol":"NIM0579105","token_address":"0xcd74dc84639ba38c4778a5cdb407b09f02e750f3","type":"artist","uuid":"9effeac1-b619-496d-9d84-d98e1e27b650"}
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 0x571d8f8ac4177105d8a3175c32541c937fea6c58daf1e97d51f714eff654d5b6. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9effeac1-b619-496d-9d84-d98e1e27b650.json and https://artists.proofprofile.net/proofs/artist/9effeac1-b619-496d-9d84-d98e1e27b650.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:44:49Z
  text: {"copyright_id":"0x571d8f8ac4177105d8a3175c32541c937fea6c58daf1e97d51f714eff654d5b6","name":"The Chevra","registered_at":"2026-06-14T21:17:10Z","symbol":"NIM0579105","token_address":"0xcd74dc84639ba38c4778a5cdb407b09f02e750f3","type":"artist","uuid":"9effeac1-b619-496d-9d84-d98e1e27b650"}
album: The Chevra
  type: MusicAlbum
  date published: 2001-11-03
album: The Chevra
  type: MusicAlbum
  date published: 2001-11-04
  track: Sh'ma Koleinu
    type: MusicRecording
    duration: PT7M9S
    duration ms: 429560
    explicit: false
    by artist: The Chevra
    in album: The Chevra
      type: MusicAlbum
      date published: 2001-11-04
    isrc code: USHM21372439
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T17:55:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf6fbbd7845c5a92a0c72ff74656d6be8aaf98acf50fee079ddfcc79f98f9cdc3
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958765
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958765
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21372439
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:58:15Z
    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 0xf6fbbd7845c5a92a0c72ff74656d6be8aaf98acf50fee079ddfcc79f98f9cdc3. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:58:15Z), 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/USHM21372439.
      date published: 2026-07-19T20:58:15Z
    audio: Sh'ma Koleinu
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.771
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.498
      additional property: Energy
        type: PropertyValue
        value: 0.581
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.027
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.068
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.383
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.917
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
  track: Uvaruch
    type: MusicRecording
    duration: PT3M33S
    duration ms: 213826
    explicit: false
    by artist: The Chevra
    in album: The Chevra
      type: MusicAlbum
      date published: 2001-11-04
    isrc code: USHM21372440
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T17:05:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x51a5d50078b382570d15db8d3f8ec4d1cbfb8c1bd72156d0008000389bd92b8f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958918
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958918
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21372440
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T20:04:14Z
    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 0x51a5d50078b382570d15db8d3f8ec4d1cbfb8c1bd72156d0008000389bd92b8f. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:04:14Z), 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/USHM21372440.
      date published: 2026-07-20T20:04:14Z
    audio: Uvaruch
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.89
      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: 0.437
      additional property: Energy
        type: PropertyValue
        value: 0.709
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.018
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.167
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.308
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Eli Gerstner & the Chevra: Sing Acappella
album: The Chevra 2
album: The Chevra 3
album: Chai

Loudness (dB)
type: PropertyValue
value: -8.332

Key Name
type: PropertyValue
value: B

Mode Name
type: PropertyValue
value: Minor

Eli Gerstner & the Chevra: Sing Acappella
type: MusicAlbum
date published: 2002-02-01
track: Ana Hashem
  type: MusicRecording
  duration: PT5M13S
  duration ms: 313160
  explicit: false
  by artist: The Chevra
  in album: Eli Gerstner & the Chevra: Sing Acappella
    type: MusicAlbum
    date published: 2002-02-01
  isrc code: USCGH1383829
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T11:54:28+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4ff4cb596e09c9ae03d71fd4a352e4f99d39ecf1ad1d15748e26b855196cc6f5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959009
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959009
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGH1383829
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T13:14:47Z
  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 0x4ff4cb596e09c9ae03d71fd4a352e4f99d39ecf1ad1d15748e26b855196cc6f5. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T13:14:47Z), 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/USCGH1383829.
    date published: 2026-07-21T13:14:47Z
  audio: Ana Hashem
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 106.033
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
      value: 0.433
    additional property: Energy
      type: PropertyValue
      value: 0.342
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.852
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.075
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.313
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.625
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor

The Chevra 2
type: MusicAlbum
date published: 2004-03-01

The Chevra 2
type: MusicAlbum
date published: 2004-03-01
track: Lecha
  type: MusicRecording
  duration: PT5M28S
  duration ms: 328880
  explicit: false
  by artist: The Chevra
  in album: The Chevra 2
    type: MusicAlbum
    date published: 2004-03-01
  isrc code: USHM21376121
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-15T10:23:11+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5066257961e52774eac92a9cf695d97f3baafb7093f3f2e449fe84e5da90210c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958146
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958146
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21376121
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-15T10:33:22Z
  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 0x5066257961e52774eac92a9cf695d97f3baafb7093f3f2e449fe84e5da90210c. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/USHM21376121.
    date published: 2026-07-15T10:33:22Z
  audio: Lecha
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 119.989
    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: 0.66
    additional property: Energy
      type: PropertyValue
      value: 0.882
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.025
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.358
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.874
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.392
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Es Ponecha
  type: MusicRecording
  duration: PT6M18S
  duration ms: 378266
  explicit: false
  by artist: The Chevra
  in album: The Chevra 2
    type: MusicAlbum
    date published: 2004-03-01
  isrc code: USHM21376126
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T10:23:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0422aa63a7597ba241b1a38b106d5e572a0dce971fd7f2fde254775c55a1e8d3
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958543
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958543
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21376126
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T11:58:44Z
  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 0x0422aa63a7597ba241b1a38b106d5e572a0dce971fd7f2fde254775c55a1e8d3. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/USHM21376126.
    date published: 2026-07-18T11:58:44Z
  audio: Es Ponecha
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 94.917
    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: 0.532
    additional property: Energy
      type: PropertyValue
      value: 0.728
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.272
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.049
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.483
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.48
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Somachti
  type: MusicRecording
  duration: PT4M58S
  duration ms: 298920
  explicit: false
  by artist: The Chevra
  in album: The Chevra 2
    type: MusicAlbum
    date published: 2004-03-01
  isrc code: USHM21376127
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-05T21:59:26+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x90d21d1a8245e96834a6fd88b71e671e836d64c31e55c6aacee35c0858f307f1
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956857
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956857
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21376127
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Somachti

OTSTimestamp
type: PropertyValue
value: 2026-07-06T01:26:17Z

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 0x90d21d1a8245e96834a6fd88b71e671e836d64c31e55c6aacee35c0858f307f1. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM21376127.
date published: 2026-07-06T01:26:17Z

Somachti
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 125.027
additional property: Musical Key
  type: PropertyValue
  value: 0
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 0
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.659
additional property: Energy
  type: PropertyValue
  value: 0.815
additional property: Speechiness
  type: PropertyValue
  value: 0.029
additional property: Acousticness
  type: PropertyValue
  value: 0.167
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.098
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.476
additional property: Loudness (dB)
  type: PropertyValue
  value: -5.236
additional property: Key Name
  type: PropertyValue
  value: C
additional property: Mode Name
  type: PropertyValue
  value: Minor

The Chevra 3
type: MusicAlbum
date published: 2010-04-15
track: Chizku
  type: MusicRecording
  duration: PT4M30S
  duration ms: 270586
  explicit: false
  by artist: The Chevra
  in album: The Chevra 3
    type: MusicAlbum
    date published: 2010-04-15
  isrc code: USHM21000101
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T00:20:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2abcc1d13a310023ac9b20c2e7941f9ea48ff61bc9746a20e273f34c88ffd045
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958342
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958342
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21000101
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T03:21:53Z
  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 0x2abcc1d13a310023ac9b20c2e7941f9ea48ff61bc9746a20e273f34c88ffd045. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:21:53Z), 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/USHM21000101.
    date published: 2026-07-17T03:21:53Z
  audio: Chizku
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 120.05
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.631
    additional property: Energy
      type: PropertyValue
      value: 0.732
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.127
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.066
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.652
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.709
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: L'maan Achai
  type: MusicRecording
  duration: PT6M38S
  duration ms: 398080
  explicit: false
  by artist: The Chevra
  in album: The Chevra 3
    type: MusicAlbum
    date published: 2010-04-15
  isrc code: USHM21000103
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T11:33:21+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa6ceadda84f98b95d04c235d713aebb3e0c5cb5372ff780a37208a9f9a5e3a37
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958544
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958544
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21000103
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T12:14:37Z
  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 0xa6ceadda84f98b95d04c235d713aebb3e0c5cb5372ff780a37208a9f9a5e3a37. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USHM21000103.
    date published: 2026-07-18T12:14:37Z
  audio: L'maan Achai
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.031
    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: 0.439
    additional property: Energy
      type: PropertyValue
      value: 0.448
    additional property: Speechiness
      type: PropertyValue
      value: 0.03
    additional property: Acousticness
      type: PropertyValue
      value: 0.151
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.236
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.335
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.346
    additional property: Key Name
      type: PropertyValue
      value: Eb
    additional property: Mode Name
      type: PropertyValue
      value: Major

Chai
type: MusicAlbum
date published: 2013-05-30
track: I'm a Jew
  type: MusicRecording
  duration: PT3M52S
  duration ms: 232706
  explicit: false
  by artist: The Chevra
  in album: Chai
    type: MusicAlbum
    date published: 2013-05-30
  isrc code: USHM21332305
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T09:45:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x2d48830fb156f68add9eace5a916919ec85b745892f1295a906f89e152290183
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958992
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958992
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21332305
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T12:48:26Z
  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 0x2d48830fb156f68add9eace5a916919ec85b745892f1295a906f89e152290183. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:48:26Z), 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/USHM21332305.
    date published: 2026-07-21T12:48:26Z
  audio: I'm a Jew
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 121.968
    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: 0.682
    additional property: Energy
      type: PropertyValue
      value: 0.881
    additional property: Speechiness
      type: PropertyValue
      value: 0.061
    additional property: Acousticness
      type: PropertyValue
      value: 0.003
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.099
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.89
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.167
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Ad Olam
  type: MusicRecording
  duration: PT4M37S
  duration ms: 277302
  explicit: false
  by artist: The Chevra
  in album: Chai
    type: MusicAlbum
    date published: 2013-05-30
  isrc code: USHM21332311
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T15:15:59+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x8e5940f2f728012c5b5c32d28b2bba14c86725da38f489863a3d37791481e6ae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 959026
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/959026
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21332311
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T15:38:13Z
  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 0x8e5940f2f728012c5b5c32d28b2bba14c86725da38f489863a3d37791481e6ae. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T15:38:13Z), 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/USHM21332311.
    date published: 2026-07-21T15:38:13Z
  audio: Ad Olam
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 135.014
    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: 0.592
    additional property: Energy
      type: PropertyValue
      value: 0.89
    additional property: Speechiness
      type: PropertyValue
      value: 0.028
    additional property: Acousticness
      type: PropertyValue
      value: 0.004
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.095
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.599
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.182
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Chai
type: MusicAlbum
date published: 2013-05-30