HASC
type: MusicGroup
popularity: 15
followers: 6377
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xef596288a0b9b05bd9640dbb94eeb6d28ec92640a95892b920747dbda812cf1c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953786
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953786
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d852a979-0b53-47f8-899e-9bd7b845b4bd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d852a979-0b53-47f8-899e-9bd7b845b4bd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d852a979-0b53-47f8-899e-9bd7b845b4bd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T12:56:12Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef596288a0b9b05bd9640dbb94eeb6d28ec92640a95892b920747dbda812cf1c. Chain 2 (Bitcoin): anchored in block 953786 (2026-06-15T12:56:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d852a979-0b53-47f8-899e-9bd7b845b4bd.json and https://artists.proofprofile.net/proofs/artist/d852a979-0b53-47f8-899e-9bd7b845b4bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T12:56:12Z
album: Unforgettable Moments, Vol. 3
  type: MusicAlbum
  date published: 2014-06-01
album: Unforgettable Moments Volume 3
  type: MusicAlbum
  date published: 2015-08-05
album: A Time for Music 22
  type: MusicAlbum
  date published: 2021-01-15
album: A Time for Music 24
  type: MusicAlbum
  date published: 2021-01-15
album: A Time for Music 26
  type: MusicAlbum
  date published: 2021-01-20
  track: MBD Medley
    type: MusicRecording
    duration: PT5M32S
    duration ms: 332695
    explicit: false
    by artist: HASC
    in album: A Time for Music 26
      type: MusicAlbum
      date published: 2021-01-20
    isrc code: QZFZ22136703
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T05:01:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa857e126dd471e829172ca826bfaf38dcf099e59c4bfe070ee4570d4c9b95a19
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959100
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959100
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ22136703
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T08:02:08Z
    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 0xa857e126dd471e829172ca826bfaf38dcf099e59c4bfe070ee4570d4c9b95a19. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:02:08Z), 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/QZFZ22136703.
      date published: 2026-07-22T08:02:08Z
    audio: MBD Medley
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 177.942
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.478
      additional property: Energy
        type: PropertyValue
        value: 0.886
      additional property: Speechiness
        type: PropertyValue
        value: 0.162
      additional property: Acousticness
        type: PropertyValue
        value: 0.239
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.986
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.605
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.168
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: A Time for Music 25
  type: MusicAlbum
  date published: 2021-01-20
album: A Time for Music 27
  type: MusicAlbum
  date published: 2021-01-20
  track: Shalom Aleichem
    type: MusicRecording
    duration: PT4M3S
    duration ms: 243252
    explicit: false
    by artist: HASC
    in album: A Time for Music 27
      type: MusicAlbum
      date published: 2021-01-20
    isrc code: QZFZ22134995
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T19:27:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x277f585000083e4231a4e8f6185ec5875cdadda49a04978d86aa9a42eb718688
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959051
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959051
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ22134995
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T19:48:03Z
    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 0x277f585000083e4231a4e8f6185ec5875cdadda49a04978d86aa9a42eb718688. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZFZ22134995.
      date published: 2026-07-21T19:48:03Z
    audio: Shalom Aleichem
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 118.516
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.589
      additional property: Energy
        type: PropertyValue
        value: 0.936
      additional property: Speechiness
        type: PropertyValue
        value: 0.062
      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: A Time for Music 23

Acousticness
type: PropertyValue
value: 0.224

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.767

Valence (Positivity)
type: PropertyValue
value: 0.825

Loudness (dB)
type: PropertyValue
value: -5.161

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Minor

A Time for Music 23
type: MusicAlbum
date published: 2021-01-20