World Piano Bar
type: MusicGroup
popularity: 17
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xf4973d62bc6e60ac7811940eb26c4e20142778b87e0cac88853b94676e107fc8
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSCanonicalRecord
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4973d62bc6e60ac7811940eb26c4e20142778b87e0cac88853b94676e107fc8. Chain 2 (Bitcoin): anchored in block 953709 (2026-06-14T23:31:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7db086ad-e6e1-4b9b-802f-8dca614cf595.json and https://artists.proofprofile.net/proofs/artist/7db086ad-e6e1-4b9b-802f-8dca614cf595.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T23:31:11Z
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album: Comptine D'un Autre Été: L'après-Midi (Amelie)
  type: MusicAlbum
  date published: 2020-12-04
album: Timeless Piano Covers & Instrumentals, Vol. 1
  type: MusicAlbum
  date published: 2021-02-01
  track: As Time Goes By
    type: MusicRecording
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    by artist: World Piano Bar
    in album: Timeless Piano Covers & Instrumentals, Vol. 1
      type: MusicAlbum
      date published: 2021-02-01
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T03:03:40Z
    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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d416c22b22823dfc783f1a1c3148bd26e3ea3a23954b87096b2c3d709402652. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEVJ52000030.
      date published: 2026-07-21T03:03:40Z
    audio: As Time Goes By
      type: AudioObject
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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      additional property: Time Signature
        type: PropertyValue
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      additional property: Danceability
        type: PropertyValue
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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      additional property: Loudness (dB)
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      additional property: Key Name
        type: PropertyValue
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      additional property: Mode Name
        type: PropertyValue
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  track: La Vie En Rose
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165500
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    by artist: World Piano Bar
    in album: Timeless Piano Covers & Instrumentals, Vol. 1
      type: MusicAlbum
      date published: 2021-02-01
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    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSBitcoinBlock
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVJ52000037
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9340e33caefba1c8f5ea71cfcd12b0d3c2972b6e69e81b73836a8803d041307. 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/DEVJ52000037.
      date published: 2026-07-17T12:18:07Z
    audio: La Vie En Rose
      type: AudioObject
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
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      additional property: Valence (Positivity)
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album: Over The Rainbow
album: Hallelujah
album: Easy On Me
album: Timeless Piano Covers & Instrumentals, Vol. 2
album: Rhodes Eighty Eight Mark II, Vol. 1
album: Moog One 16
album: Hohner Clavinet L
album: Wurlitzer 206, Vol. 1
album: Sound Of Silence
album: Tears In Heaven
album: Timeless Piano Covers & Instrumentals, Vol. 3
album: Instrumental Moods, Vol. 1
album: Hallenstein's Mysterious Melody
album: Hallenstein's Sentimental Waltz
album: The Mysterious Hallenstein Piano
album: Timeless Piano Covers & Instrumentals, Vol. 4
album: Instrumental Shots, Vol. 1

Loudness (dB)
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value: -17.294

Key Name
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value: C

Mode Name
type: PropertyValue
value: Major

Over The Rainbow
type: MusicAlbum
date published: 2021-07-12

Hallelujah
type: MusicAlbum
date published: 2021-07-26

Easy On Me
type: MusicAlbum
date published: 2021-10-20

Timeless Piano Covers & Instrumentals, Vol. 2
type: MusicAlbum
date published: 2021-11-05

Timeless Piano Covers & Instrumentals, Vol. 2
type: MusicAlbum
date published: 2021-11-05
track: Sunny
  type: MusicRecording
  duration: PT1M24S
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  by artist: World Piano Bar
  in album: Timeless Piano Covers & Instrumentals, Vol. 2
    type: MusicAlbum
    date published: 2021-11-05
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  additional property: OTSTimestamp
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  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 0xc93685ed968599f28f867f171c0a90eeb3a7c35c51a81fa2a0251244be1077da. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/DEVJ52100008.
    date published: 2026-07-21T06:27:23Z
  audio: Sunny
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
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    additional property: Musical Key
      type: PropertyValue
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    additional property: Mode (Major/Minor)
      type: PropertyValue
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    additional property: Time Signature
      type: PropertyValue
      value: 3
    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
      type: PropertyValue
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    additional property: Instrumentalness
      type: PropertyValue
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    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
      type: PropertyValue
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    additional property: Key Name
      type: PropertyValue
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    additional property: Mode Name
      type: PropertyValue
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track: The Long And Winding Road
  type: MusicRecording
  duration: PT2M37S
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  explicit: false
  by artist: World Piano Bar
  in album: Timeless Piano Covers & Instrumentals, Vol. 2
    type: MusicAlbum
    date published: 2021-11-05
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  additional property: CopyrightStatus
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
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  additional property: OTSTimestamp
    type: PropertyValue
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  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 0xee4e127cb728be6807934b34eddf9cd97f45c20cab8695b5cb3aa413e04fca22. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEVJ52100011.
    date published: 2026-07-06T06:56:49Z
  audio: The Long And Winding Road
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Musical Key
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    additional property: Mode (Major/Minor)
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
      type: PropertyValue
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
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track: Waltz No. 3 In G-Sharp Minor, Op. 39
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  by artist: World Piano Bar
  in album: Timeless Piano Covers & Instrumentals, Vol. 2
    type: MusicAlbum
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  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
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  additional property: CopyrightRegisteredAt
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  additional property: CopyrightChainExplorerURL
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEVJ52100023
  additional property: OTSTimestamp
  additional property: OTSVerifyInstructions
  subject of: OpenTimestamps Proof of Existence
  audio: Waltz No. 3 In G-Sharp Minor, Op. 39

OTSTimestamp
type: PropertyValue
value: 2026-07-06T06:56:49Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4562625e4c2cf5cf2d4570bdb15abec45d89a8f4997ffdc8e64012f33ff9b79b. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEVJ52100023.
date published: 2026-07-06T06:56:49Z

Waltz No. 3 In G-Sharp Minor, Op. 39
type: AudioObject
additional property: Tempo (BPM)
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additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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additional property: Danceability
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additional property: Energy
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additional property: Speechiness
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additional property: Acousticness
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additional property: Instrumentalness
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additional property: Liveness
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additional property: Valence (Positivity)
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additional property: Loudness (dB)
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additional property: Key Name
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additional property: Mode Name
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Rhodes Eighty Eight Mark II, Vol. 1
type: MusicAlbum
date published: 2022-02-04

Moog One 16
type: MusicAlbum
date published: 2022-05-27

Hohner Clavinet L
type: MusicAlbum
date published: 2022-07-01

Wurlitzer 206, Vol. 1
type: MusicAlbum
date published: 2022-07-08

Sound Of Silence
type: MusicAlbum
date published: 2022-11-14

Tears In Heaven
type: MusicAlbum
date published: 2022-11-21

Timeless Piano Covers & Instrumentals, Vol. 3
type: MusicAlbum
date published: 2022-12-16

Instrumental Moods, Vol. 1
type: MusicAlbum
date published: 2023-04-21

Hallenstein's Mysterious Melody
type: MusicAlbum
date published: 2023-04-28

Hallenstein's Sentimental Waltz
type: MusicAlbum
date published: 2023-05-05

The Mysterious Hallenstein Piano
type: MusicAlbum
date published: 2023-05-12

Timeless Piano Covers & Instrumentals, Vol. 4
type: MusicAlbum
date published: 2024-07-12
track: New York, New York
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  by artist: World Piano Bar
  in album: Timeless Piano Covers & Instrumentals, Vol. 4
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  additional property: OTSVerifyInstructions
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    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
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  audio: Here Comes The Sun
track: Blinding Lights

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OTSVerifyInstructions
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OpenTimestamps Proof of Existence
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description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abbf18351399241f2203932948a0120912f9fcff2e1b2e9621a6d7b9af168f8. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/DEVJ52400018.
date published: 2026-07-17T03:11:50Z

Here Comes The Sun
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  date published: 2026-07-04T10:04:33Z
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Instrumental Shots, Vol. 1
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date published: 2025-06-05