HSTG
type: MusicGroup
popularity: 4
followers: 321
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb3e0224c85d239879f5402746ceddddfaaf259d95b2c17b8025632d602515e9e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fcd24196-043c-4b03-ba66-a75ec6a646d1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fcd24196-043c-4b03-ba66-a75ec6a646d1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fcd24196-043c-4b03-ba66-a75ec6a646d1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e0224c85d239879f5402746ceddddfaaf259d95b2c17b8025632d602515e9e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fcd24196-043c-4b03-ba66-a75ec6a646d1.json and https://artists.proofprofile.net/proofs/artist/fcd24196-043c-4b03-ba66-a75ec6a646d1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Sandcastles
  type: MusicAlbum
  date published: 2017-04-29
  track: Sandcastles
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202393
    explicit: false
    by artist: HSTG
    in album: Sandcastles
      type: MusicAlbum
      date published: 2017-04-29
    isrc code: GBHCD2101560
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T16:50:35+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb0b883c9faffd4032eb9e7f20d39b97dc10260f89b17c98fb5828e5c62af2cb9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958585
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958585
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHCD2101560
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T17:05:16Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b883c9faffd4032eb9e7f20d39b97dc10260f89b17c98fb5828e5c62af2cb9. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/GBHCD2101560.
      date published: 2026-07-18T17:05:16Z
    audio: Sandcastles
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.571
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.422
      additional property: Energy
        type: PropertyValue
        value: 0.72
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.048
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.377
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.16
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.811
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Sandcastles
  type: MusicAlbum
  date published: 2017-04-29
album: Sandcastles
  type: MusicAlbum
  date published: 2017-04-29
album: Sandcastles
  type: MusicAlbum
  date published: 2017-04-29
  track: Sandcastles
    type: MusicRecording
    duration: PT3M22S
    duration ms: 202393
    explicit: false
    by artist: HSTG
    in album: Sandcastles
      type: MusicAlbum
      date published: 2017-04-29
    isrc code: GBHCD2101560
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb0b883c9faffd4032eb9e7f20d39b97dc10260f89b17c98fb5828e5c62af2cb9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBHCD2101560
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b883c9faffd4032eb9e7f20d39b97dc10260f89b17c98fb5828e5c62af2cb9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBHCD2101560.
      date published: 2026-07-20T21:15:01Z
    audio: Sandcastles
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.571
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.422
      additional property: Energy
        type: PropertyValue
        value: 0.72
      additional property: Speechiness
        type: PropertyValue
        value: 0.064
      additional property: Acousticness
        type: PropertyValue
        value: 0.048
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.377
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: You and I
album: The Only One

Valence (Positivity)
type: PropertyValue
value: 0.163

Loudness (dB)
type: PropertyValue
value: -5.811

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Minor

You and I
type: MusicAlbum
date published: 2017-10-20

You and I
type: MusicAlbum
date published: 2017-10-20

The Only One
type: MusicAlbum
date published: 2018-09-21

The Only One
type: MusicAlbum
date published: 2018-09-21

The Only One
type: MusicAlbum
date published: 2018-09-21