Track Circuit
type: MusicGroup
description: thumb|right|Illustration of track circuit invented by William Robinson in 1872 thumb|Track circuit transformer on the right, new axle counter on the left (Slovenia). A track circuit is an electrical d
popularity: 25
followers: 131
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05ebaa32df158c02870310ffb78358ba7370ff3491bc020ea3d2de06c6689740
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15ee4280-2f7f-4aaa-9571-3051ff7ac2a3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/15ee4280-2f7f-4aaa-9571-3051ff7ac2a3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/15ee4280-2f7f-4aaa-9571-3051ff7ac2a3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x05ebaa32df158c02870310ffb78358ba7370ff3491bc020ea3d2de06c6689740","name":"Track Circuit","registered_at":"2026-06-11T12:34:26Z","symbol":"NIM0029880","token_address":"0xef1e689b510e3a48e731d9dc1f2aacf0b21d862b","type":"artist","uuid":"15ee4280-2f7f-4aaa-9571-3051ff7ac2a3"}
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 0x05ebaa32df158c02870310ffb78358ba7370ff3491bc020ea3d2de06c6689740. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15ee4280-2f7f-4aaa-9571-3051ff7ac2a3.json and https://artists.proofprofile.net/proofs/artist/15ee4280-2f7f-4aaa-9571-3051ff7ac2a3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x05ebaa32df158c02870310ffb78358ba7370ff3491bc020ea3d2de06c6689740","name":"Track Circuit","registered_at":"2026-06-11T12:34:26Z","symbol":"NIM0029880","token_address":"0xef1e689b510e3a48e731d9dc1f2aacf0b21d862b","type":"artist","uuid":"15ee4280-2f7f-4aaa-9571-3051ff7ac2a3"}
album: The Sound Of Trains
  type: MusicAlbum
  date published: 2017-11-10
  track: Train Noise Mono Tone
    type: MusicRecording
    duration: PT4M22S
    duration ms: 262748
    explicit: false
    by artist: Track Circuit
    in album: The Sound Of Trains
      type: MusicAlbum
      date published: 2017-11-10
    isrc code: SE5IB1702046
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T20:20:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc0ba9f5601a0cb616664c2f3fe929120cf9c131c3b4d42221b5d168f2f9e5b4d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958203
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958203
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5IB1702046
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T23:23:33Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ba9f5601a0cb616664c2f3fe929120cf9c131c3b4d42221b5d168f2f9e5b4d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:23:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5IB1702046.
      date published: 2026-07-15T23:23:33Z
    audio: Train Noise Mono Tone
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.774
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.162
      additional property: Energy
        type: PropertyValue
        value: 0.184
      additional property: Speechiness
        type: PropertyValue
        value: 0.061
      additional property: Acousticness
        type: PropertyValue
        value: 0.923
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.973
      additional property: Liveness
        type: PropertyValue
        value: 0.101
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.024
      additional property: Loudness (dB)
        type: PropertyValue
        value: -45.031
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Binaural Train Cabin
    type: MusicRecording
    duration: PT3M12S
    duration ms: 192216
    explicit: false
    by artist: Track Circuit
    in album: The Sound Of Trains
      type: MusicAlbum
      date published: 2017-11-10
    isrc code: SE5IB1702049
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T07:38:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9585e3a6d66e48fc99bde2e5dac55e58b70ba5730e24e9bc0eb9e9671e62bae6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957820
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957820
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5IB1702049
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T07:54:01Z
    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 0x9585e3a6d66e48fc99bde2e5dac55e58b70ba5730e24e9bc0eb9e9671e62bae6. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/SE5IB1702049.
      date published: 2026-07-13T07:54:01Z
    audio: Binaural Train Cabin
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 89.68
      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: 0.193
      additional property: Energy
        type: PropertyValue
        value: 0.011
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.836
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.964
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.039
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Peaceful Train Chugging for Deep Sleep

Loudness (dB)
type: PropertyValue
value: -47.772

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Minor

Peaceful Train Chugging for Deep Sleep
type: MusicAlbum
date published: 2023-07-21