Heart of the City
type: MusicGroup
popularity: 6
followers: 1015
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x13cf0fbbd5318aaa1905ccd4ad3d60134076fc8c88962530bbd11dc872e5eb02
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a69c6435-c55f-420a-a1bb-06ffeae47f49.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a69c6435-c55f-420a-a1bb-06ffeae47f49.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a69c6435-c55f-420a-a1bb-06ffeae47f49
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x13cf0fbbd5318aaa1905ccd4ad3d60134076fc8c88962530bbd11dc872e5eb02","name":"Heart of the City","registered_at":"2026-06-20T07:32:06Z","symbol":"NIM1555241","token_address":"0x100274076cf896cdfa6fdc1f0b13dc30632076c2","type":"artist","uuid":"a69c6435-c55f-420a-a1bb-06ffeae47f49"}
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 0x13cf0fbbd5318aaa1905ccd4ad3d60134076fc8c88962530bbd11dc872e5eb02. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a69c6435-c55f-420a-a1bb-06ffeae47f49.json and https://artists.proofprofile.net/proofs/artist/a69c6435-c55f-420a-a1bb-06ffeae47f49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x13cf0fbbd5318aaa1905ccd4ad3d60134076fc8c88962530bbd11dc872e5eb02","name":"Heart of the City","registered_at":"2026-06-20T07:32:06Z","symbol":"NIM1555241","token_address":"0x100274076cf896cdfa6fdc1f0b13dc30632076c2","type":"artist","uuid":"a69c6435-c55f-420a-a1bb-06ffeae47f49"}
album: The River
  type: MusicAlbum
  date published: 2018-08-03
album: The River
  type: MusicAlbum
  date published: 2018-08-03
album: Heart of the City
  type: MusicAlbum
  date published: 2018-08-24
  track: Don't Go
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228693
    explicit: false
    by artist: Heart of the City
    in album: Heart of the City
      type: MusicAlbum
      date published: 2018-08-24
    isrc code: US2761892185
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T23:37:26+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe5c438debbab98e884aafea9e69b67a0b545057aac4ae9187122538ae60b00fa
    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/US2761892185
    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 0xe5c438debbab98e884aafea9e69b67a0b545057aac4ae9187122538ae60b00fa. 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/US2761892185.
      date published: 2026-07-05T01:12:41Z
    audio: Don't Go
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.054
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.568
      additional property: Energy
        type: PropertyValue
        value: 0.628
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.11
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.488
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.525
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.196
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Heal With Time
  type: MusicAlbum
  date published: 2020-08-21
album: Sweet Dreams (Are Made of This)
  type: MusicAlbum
  date published: 2020-09-18
album: Do You Remember?
  type: MusicAlbum
  date published: 2020-11-20
album: Christmas Time Among the Lights
  type: MusicAlbum
  date published: 2020-12-11
album: Just One
  type: MusicAlbum
  date published: 2022-02-04
album: Room Sound Live Session
  type: MusicAlbum
  date published: 2022-06-24
album: The Lights Burn Bright
  type: MusicAlbum
  date published: 2022-11-25
  track: The Lights Burn Bright
    type: MusicRecording
    duration: PT3M56S
    duration ms: 236139
    explicit: false
    by artist: Heart of the City
    in album: The Lights Burn Bright
      type: MusicAlbum
      date published: 2022-11-25
    isrc code: US2762202698
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T04:54:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x255d5ea43050f634096056cd6768ed01f00f5066c390a67d527d119d9433fac1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958501
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958501
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US2762202698
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T05:33:04Z
    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 0x255d5ea43050f634096056cd6768ed01f00f5066c390a67d527d119d9433fac1. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/US2762202698.
      date published: 2026-07-18T05:33:04Z
    audio: The Lights Burn Bright
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.119
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      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
album: All the Other Roads
album: Golden Slumbers
album: Boarded Up

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.396

Energy
type: PropertyValue
value: 0.325

Speechiness
type: PropertyValue
value: 0.033

Acousticness
type: PropertyValue
value: 0.349

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.098

Valence (Positivity)
type: PropertyValue
value: 0.387

Loudness (dB)
type: PropertyValue
value: -9.694

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

All the Other Roads
type: MusicAlbum
date published: 2022-12-09

Golden Slumbers
type: MusicAlbum
date published: 2023-12-01

Boarded Up
type: MusicAlbum
date published: 2024-03-01