CPH
type: MusicGroup
description: CPH, CpH, Cph, or cph may refer to: California State Polytechnic University, Humboldt, public university in Arcata, California Castle Peak Hospital, the oldest and largest psychiatric hospital in Tu
popularity: 27
followers: 933
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x786bfe90567656852f190b8fca74682fd59c1340265d7bb20e8f09397710d974
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/1ac1601a-37d2-41d5-8389-89d248e387fa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1ac1601a-37d2-41d5-8389-89d248e387fa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1ac1601a-37d2-41d5-8389-89d248e387fa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0x786bfe90567656852f190b8fca74682fd59c1340265d7bb20e8f09397710d974. 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/1ac1601a-37d2-41d5-8389-89d248e387fa.json and https://artists.proofprofile.net/proofs/artist/1ac1601a-37d2-41d5-8389-89d248e387fa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
album: Sun And Moon - Originally Performed by Anees (Karaoke Instrumental Version)
  type: MusicAlbum
  date published: 2022-06-02
album: Until I Found You - Originally Performed by Stephen Sanchez (Karaoke Instrumental Version)
  type: MusicAlbum
  date published: 2022-06-03
album: Piano Karaoke Instrumentals Volume 1
  type: MusicAlbum
  date published: 2022-06-28
album: Kathang Isip (Piano Instrumental)
  type: MusicAlbum
  date published: 2022-07-19
album: Muli - Originally Performed by Ace Banzuelo (Karaoke Version)
  type: MusicAlbum
  date published: 2022-07-19
album: Easy On Me (Karaoke Version)
  type: MusicAlbum
  date published: 2022-07-27
album: Piano Karaoke Instrumental Volume 2
  type: MusicAlbum
  date published: 2022-08-31
album: Angel Baby - Popularized by Troye Sivan (Karaoke Version)
  type: MusicAlbum
  date published: 2022-09-09
album: Glimpse Of Us - Popularized by Joji (Karaoke Version)
  type: MusicAlbum
  date published: 2022-09-09
album: Mahika - Popularized by Adie & Janine Berdin (Karaoke Version)
  type: MusicAlbum
  date published: 2022-09-20
album: Drivers License (Karaoke Version)
  type: MusicAlbum
  date published: 2022-10-04
album: Beer - Slow Piano (Karaoke Version)
  type: MusicAlbum
  date published: 2022-10-04
album: Piano Karaoke Instrumentals Volume 3
  type: MusicAlbum
  date published: 2022-10-07
  track: Changes In My Life - Popularized by Mark Sherman - Piano Karaoke Version
    type: MusicRecording
    duration: PT5M9S
    duration ms: 309818
    explicit: false
    by artist: CPH
    in album: Piano Karaoke Instrumentals Volume 3
      type: MusicAlbum
      date published: 2022-10-07
    isrc code: QZPJ32205257
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T00:41:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa9abab4aa2a4e4242768938df76e5a366f3b682a8d20df84d4adac21c5eb7a5b
    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/QZPJ32205257
    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 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 0xa9abab4aa2a4e4242768938df76e5a366f3b682a8d20df84d4adac21c5eb7a5b. 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/QZPJ32205257.
      date published: 2026-07-05T01:12:41Z
    audio: Changes In My Life - Popularized by Mark Sherman - Piano Karaoke Version
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.89
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.596
      additional property: Energy
        type: PropertyValue
        value: 0.122
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.979
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.951
      additional property: Liveness
        type: PropertyValue
        value: 0.104
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.233
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.983
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tayo Ang Liwanag (Instrumentals)
  type: MusicAlbum
  date published: 2022-10-13
album: Pangako (From Doll House) [Piano Instrumental]
  type: MusicAlbum
  date published: 2022-10-21
album: Dito Ka Lang - Popularized by Moira Dela Torre From "Flower of Evil" (Karaoke Version)
  type: MusicAlbum
  date published: 2022-10-21
album: Somewhere Only We Know (Karaoke Version)
  type: MusicAlbum
  date published: 2022-11-15
album: Anti-Hero (Karaoke Version)
  type: MusicAlbum
  date published: 2022-11-15
album: Piano Karaoke Instrumentals, Vol. 4
  type: MusicAlbum
  date published: 2023-01-06
album: Wedding Songs Piano Instrumentals, Vol. 1
  type: MusicAlbum
  date published: 2023-01-27
album: California King Bed (Karaoke Version)
  type: MusicAlbum
  date published: 2023-02-09
album: Come On In Out Of The Rain (Karaoke Version)
  type: MusicAlbum
  date published: 2023-02-09
album: Movie Theme Songs Karaoke (Volume 1)
  type: MusicAlbum
  date published: 2023-02-10
album: Pasilyo (Karaoke Version)
  type: MusicAlbum
  date published: 2023-02-17
album: Piano Karaoke Instrumentals (Volume 5)
  type: MusicAlbum
  date published: 2023-03-23
album: Uhaw (Tayong Lahat) [Karaoke Version]
  type: MusicAlbum
  date published: 2023-04-14
album: Ben & Ben Karaoke Versions (Volume 1)
  type: MusicAlbum
  date published: 2023-04-14
album: Colors Of The Wind (Piano Instrumental)
album: Here With Me (Piano Instrumental)
album: Cupid (Karaoke Version)
album: Make It With You (Karaoke Version)
album: Cornelia Street (Piano Acoustic)
album: Piano Karaoke (Volume 6)
album: Piano Karaoke (Volume 7)
album: Old Songs - Piano Acoustics (Volume 1)
album: What Was I Made For (Piano Acoustic)
album: Angels Like You (Karaoke Version)
album: Please Please Please (Lofi Instrumental)
album: I've Never Been To Me (Piano Version)

Colors Of The Wind (Piano Instrumental)
type: MusicAlbum
date published: 2023-04-14

Here With Me (Piano Instrumental)
type: MusicAlbum
date published: 2023-04-21

Cupid (Karaoke Version)
type: MusicAlbum
date published: 2023-04-24

Make It With You (Karaoke Version)
type: MusicAlbum
date published: 2023-05-24

Cornelia Street (Piano Acoustic)
type: MusicAlbum
date published: 2023-05-24

Piano Karaoke (Volume 6)
type: MusicAlbum
date published: 2023-05-25

Piano Karaoke (Volume 7)
type: MusicAlbum
date published: 2023-06-22

Old Songs - Piano Acoustics (Volume 1)
type: MusicAlbum
date published: 2023-07-07
track: All Out Of Love - Piano Acoustic
  type: MusicRecording
  duration: PT3M59S
  duration ms: 239764
  explicit: false
  by artist: CPH
  in album: Old Songs - Piano Acoustics (Volume 1)
    type: MusicAlbum
    date published: 2023-07-07
  isrc code: QZPJ32279142
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-12T21:17:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xbb7ce548d3fe9547b8f52db8ccc766d6255b390c409f6235c98071b024e0b615
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957754
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957754
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32279142
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-12T21:26:22Z
  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 0xbb7ce548d3fe9547b8f52db8ccc766d6255b390c409f6235c98071b024e0b615. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZPJ32279142.
    date published: 2026-07-12T21:26:22Z
  audio: All Out Of Love - Piano Acoustic
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 205.343
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.326
    additional property: Energy
      type: PropertyValue
      value: 0.181
    additional property: Speechiness
      type: PropertyValue
      value: 0.046
    additional property: Acousticness
      type: PropertyValue
      value: 0.964
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.916
    additional property: Liveness
      type: PropertyValue
      value: 0.12
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.087
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.043
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Here I Am - Piano Acoustic
  type: MusicRecording
  duration: PT3M57S
  duration ms: 237770
  explicit: false
  by artist: CPH
  in album: Old Songs - Piano Acoustics (Volume 1)
    type: MusicAlbum
    date published: 2023-07-07
  isrc code: QZPJ32279147
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T12:11:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x6ce6eeb62d172e80bd2411253dec1d00f99e9470d9c3e0566e6bd458c81462dd
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958410
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958410
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32279147
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-17T12:18:07Z
  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 0x6ce6eeb62d172e80bd2411253dec1d00f99e9470d9c3e0566e6bd458c81462dd. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZPJ32279147.
    date published: 2026-07-17T12:18:07Z
  audio: Here I Am - Piano Acoustic
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.913
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.513
    additional property: Energy
      type: PropertyValue
      value: 0.098
    additional property: Speechiness
      type: PropertyValue
      value: 0.038
    additional property: Acousticness
      type: PropertyValue
      value: 0.979
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.93
    additional property: Liveness
      type: PropertyValue
      value: 0.116
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.103
    additional property: Loudness (dB)
      type: PropertyValue
      value: -18.008
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Making Love Out Of Nothing - Piano Acoustic
  type: MusicRecording
  duration: PT5M9S
  duration ms: 309673
  explicit: false
  by artist: CPH
  in album: Old Songs - Piano Acoustics (Volume 1)
    type: MusicAlbum
    date published: 2023-07-07
  isrc code: QZPJ32279149
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-17T22:18:56+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4fad171828bc2ec5a6b93491477344efc2dbb9cd276a3c302f638765a4baa974
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958461
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958461
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32279149
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Making Love Out Of Nothing - Piano Acoustic
track: Two Less Lonely People - Piano Acoustic

OTSTimestamp
type: PropertyValue
value: 2026-07-17T23:18:11Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fad171828bc2ec5a6b93491477344efc2dbb9cd276a3c302f638765a4baa974. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/QZPJ32279149.
date published: 2026-07-17T23:18:11Z

Making Love Out Of Nothing - Piano Acoustic
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 129.973
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: 0.489
additional property: Energy
  type: PropertyValue
  value: 0.209
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.975
additional property: Instrumentalness
  type: PropertyValue
  value: 0.934
additional property: Liveness
  type: PropertyValue
  value: 0.136
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.147
additional property: Loudness (dB)
  type: PropertyValue
  value: -16.701
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Two Less Lonely People - Piano Acoustic
type: MusicRecording
duration: PT4M39S
duration ms: 279224
explicit: false
by artist: CPH
in album: Old Songs - Piano Acoustics (Volume 1)
  type: MusicAlbum
  date published: 2023-07-07
isrc code: QZPJ32279152
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-19T23:55:06+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46f9e139e4a5e564cd57db3441115067e1395d591124b2bda21fc2f402dbfe6d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 958796
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/958796
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPJ32279152
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-20T00:01:46Z
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 0x46f9e139e4a5e564cd57db3441115067e1395d591124b2bda21fc2f402dbfe6d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZPJ32279152.
  date published: 2026-07-20T00:01:46Z
audio: Two Less Lonely People - Piano Acoustic
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.752
  additional property: Musical Key
    type: PropertyValue
    value: 4
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.483
  additional property: Energy
    type: PropertyValue
    value: 0.128
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.987
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.921
  additional property: Liveness
    type: PropertyValue
    value: 0.109
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.119
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What Was I Made For (Piano Acoustic)
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date published: 2023-08-08
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    date published: 2026-07-03T08:56:35Z
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Angels Like You (Karaoke Version)
type: MusicAlbum
date published: 2023-09-13

Please Please Please (Lofi Instrumental)
type: MusicAlbum
date published: 2024-08-23

I've Never Been To Me (Piano Version)
type: MusicAlbum
date published: 2025-10-17