The Halcyon Syndicate
type: MusicGroup
popularity: 14
followers: 97
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x05a25720551ad161a5682817d0d43171ec58b8638479921d17ab5cf146939bf9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa3d751f-b1a9-4556-8746-4ec85b7b6582.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fa3d751f-b1a9-4556-8746-4ec85b7b6582.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fa3d751f-b1a9-4556-8746-4ec85b7b6582
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x05a25720551ad161a5682817d0d43171ec58b8638479921d17ab5cf146939bf9","name":"The Halcyon Syndicate","registered_at":"2026-06-15T06:46:45Z","symbol":"NIM0715118","token_address":"0xf390c805a1a570989e807b05aa6a34f3a63d3d5c","type":"artist","uuid":"fa3d751f-b1a9-4556-8746-4ec85b7b6582"}
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 0x05a25720551ad161a5682817d0d43171ec58b8638479921d17ab5cf146939bf9. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa3d751f-b1a9-4556-8746-4ec85b7b6582.json and https://artists.proofprofile.net/proofs/artist/fa3d751f-b1a9-4556-8746-4ec85b7b6582.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x05a25720551ad161a5682817d0d43171ec58b8638479921d17ab5cf146939bf9","name":"The Halcyon Syndicate","registered_at":"2026-06-15T06:46:45Z","symbol":"NIM0715118","token_address":"0xf390c805a1a570989e807b05aa6a34f3a63d3d5c","type":"artist","uuid":"fa3d751f-b1a9-4556-8746-4ec85b7b6582"}
album: Coffee House Cool Playlist
  type: MusicAlbum
  date published: 2020-05-05
album: Coffee House Acoustic Playlist
  type: MusicAlbum
  date published: 2020-05-05
  track: Riptide
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204355
    explicit: false
    by artist: The Halcyon Syndicate
    in album: Coffee House Acoustic Playlist
      type: MusicAlbum
      date published: 2020-05-05
    isrc code: AUDD31601434
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T20:20:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8c4e8c6e7d4002f3ca1cab270a402e89052abe3b6d5e5f9afc3592b0c4871e75
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959061
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959061
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUDD31601434
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T23:23:08Z
    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 0x8c4e8c6e7d4002f3ca1cab270a402e89052abe3b6d5e5f9afc3592b0c4871e75. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T23:23:08Z), 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/AUDD31601434.
      date published: 2026-07-21T23:23:08Z
    audio: Riptide
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 100.911
      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: 0.413
      additional property: Energy
        type: PropertyValue
        value: 0.641
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.169
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.476
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.931
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Late Night Electro Sounds
  type: MusicAlbum
  date published: 2020-05-05
  track: Instant Crush
    type: MusicRecording
    duration: PT5M37S
    duration ms: 337760
    explicit: false
    by artist: The Halcyon Syndicate
    in album: Late Night Electro Sounds
      type: MusicAlbum
      date published: 2020-05-05
    isrc code: AUDD31601596
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T23:07:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6951fa131bb89a388fcbdb0422e4047c721416917cb40bf261edd9c176796c60
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958341
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958341
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/AUDD31601596
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T02:17:04Z
    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 0x6951fa131bb89a388fcbdb0422e4047c721416917cb40bf261edd9c176796c60. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:17:04Z), 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/AUDD31601596.
      date published: 2026-07-17T02:17:04Z
    audio: Instant Crush
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 219.877
      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: 0.591
      additional property: Energy
        type: PropertyValue
        value: 0.575
      additional property: Speechiness
        type: PropertyValue
        value: 0.051
      additional property: Acousticness
        type: PropertyValue
        value: 0.085
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.098
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: 80s New Wave Music Playlist
album: Folk and Indie Pop Romance - Love Songs
album: Let Me Adore You - Love Songs Playlist
album: Indie Pop and Acoustic Vibes
album: Soft Pop Vibes 2021
album: Chilled Pop Hits 2021

Valence (Positivity)
type: PropertyValue
value: 0.451

Loudness (dB)
type: PropertyValue
value: -8.528

Key Name
type: PropertyValue
value: Bb

Mode Name
type: PropertyValue
value: Minor

80s New Wave Music Playlist
type: MusicAlbum
date published: 2020-05-05

Late Night Electro Sounds
type: MusicAlbum
date published: 2020-06-06

80s New Wave Music Playlist
type: MusicAlbum
date published: 2020-06-06

Folk and Indie Pop Romance - Love Songs
type: MusicAlbum
date published: 2020-08-08

Let Me Adore You - Love Songs Playlist
type: MusicAlbum
date published: 2020-08-08

Indie Pop and Acoustic Vibes
type: MusicAlbum
date published: 2020-08-08

Folk and Indie Pop Romance - Love Songs
type: MusicAlbum
date published: 2020-08-08

Let Me Adore You - Love Songs Playlist
type: MusicAlbum
date published: 2020-08-08

Soft Pop Vibes 2021
type: MusicAlbum
date published: 2021-11-11

Chilled Pop Hits 2021
type: MusicAlbum
date published: 2021-11-11