Orchestra Sinfonica di Aachen
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track: Serenade for Strings in C Major, Op. 48: I. Allegro
track: Serenade for Strings in C Major, Op. 48: II. Valse
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  by artist: Pyotr Ilyich Tchaikovsky
  by artist: Giuseppe Lanzetta
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  in album: Violin: Classical Music
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    date published: 2017-03-03
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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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34ea764f7f41b64a111bd737a0182474bbbcaa5f22736a31738b4f578304a1bc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ITD541500188.
    date published: 2026-07-08T03:20:19Z
  audio: Serenade for Strings in C Major, Op. 48: II. Valse
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track: Serenade for Strings in C Major, Op. 48: II. alse. Moderato. Tempo di Valse
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  by artist: Pyotr Ilyich Tchaikovsky
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  in album: Classical Music for Studying
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    date published: 2017-03-31
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  additional property: OTSTimestamp
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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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    date published: 2026-07-08T08:56:20Z
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Serenade for Strings in C Major, Op. 48: I. Allegro
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by artist: Pyotr Ilyich Tchaikovsky
by artist: Giuseppe Lanzetta
by artist: Orchestra Sinfonica di Aachen
in album: Violin: Classical Music
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  date published: 2017-03-03
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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
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Serenade for Strings in C Major, Op. 48: I. Allegro
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Loudness (dB)
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