thumb|Joachim Carlos Martini Joachim Carlos Martini (4 May 1931 – 29 November 2015) was a Chilean-born German conductor of music. He founded the choir Junge Kantorei and the Frankfurt Baroque Orches
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd96a62ae777df7041a04c16c9876d5a8a8dda3fc9e6c46312d91aaa100868cae. 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/a0bd5c46-9ef5-47b0-b1f6-673450c039aa.json and https://artists.proofprofile.net/proofs/artist/a0bd5c46-9ef5-47b0-b1f6-673450c039aa.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Handel: Gideon (Compiled and Arr. by J. C. Smith)
Serse (Xerxes), Hwv 40 (arr. for oboe and orchestra): Act I: Ombra mai fu, "largo"
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
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Messiah, Hwv 56: Part I: Pastoral Symphony, "pifa"
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Concerto Grosso in B Minor, Op. 6, No. 12, Hwv 330: Iii. Aria: Larghetto e piano
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Rinaldo, Hwv 7: Act Ii Scene 4: Lascia ch'io pianga
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Concerto Grosso in B-flat Major, Op. 3, No. 2, Hwv 313: Ii. Largo
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Water Music: Suite No. 3 in G Major, Hwv 350: I. Sarabande
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Oboe Concerto No. 3 in G Minor, Hwv 287: Iii. Sarabande: Largo
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Ode for St. Cecilia's Day, Hwv 76: Air: What passion cannot Music raise
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Keyboard Suite No. 2 (Set I) in F Major, Hwv 427: I. Adagio
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Concerto Grosso in A Minor, Op. 6, No. 4, Hwv 322: I. Larghetto affettuoso
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Music for the Royal Fireworks, Hwv 351: Iii. La paix
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Theodora, Hwv 68: Act I Scene 5: Air: Angels, ever bright and fair
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Organ Concerto No. 6 in B-flat Major, Op. 4, No. 6, Hwv 294: Ii. Larghetto
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Recorder Sonata in F Major Op. 1, No. 11, Hwv 369: I. Larghetto
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Concerto Grosso in A Minor, Op. 6, No. 4, Hwv 322: Iii. Largo e piano
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Water Music: Suite No. 2 in D Major, Hwv 349: Iv. Lentement
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Recorder Sonata in F Major Op. 1, No. 11, Hwv 369: Iii. Siciliana
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Concerto Grosso in D Major, Op. 6, No. 5, Hwv 323: Iv. Largo
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Ode for the Birthday of Queen Anne, Hwv 74, "eternal Source of Light Divine": Eternal Source of Light Divine
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Flowering of Love, (The) - Beautiful Arias and Sacred Songs of the Baroque
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Rinaldo, HWV 7, Act II: Lascia ch'io pianga
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6 Cantatas, "The Flowering and Fading of Love": No. 1. Da procella tempestosa, "La rosa": Largo
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L'Allegro, il Penseroso ed il Moderato, HWV 55: Part I: Aria: Sweet bird
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Amor ch'attendi (Love what are you waiting for): Amor, ch'attendi
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Ode for St. Cecilia's Day, HWV 76: Air: What passion cannot Music raise
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Zadok the Priest, HWV 258: I. Zadok the Priest
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A Guided Tour of the Baroque Era, Vol. 8
Tobit, Pt. II Scene 5: The Clouded Scene begins to clear (Chorus) [arr. J.C. Smith for voice, choir and orchestra]
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Handel: Trionfo Del Tempo E Della Verita (Il)
Saul, HWV 53: Symphony: Allegro - Larghetto - Allegro - Andante larghetto
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Saul, HWV 53: Act I Scene 1: How excellent Thy name, O Lord (Chorus)
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Saul, HWV 53: Act I Scene 1: Air: An Infant rais'd by thy Command (Soprano)
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Saul, HWV 53: Act I Scene 1: Trio: Along the Monster Atheist strode (Chorus)
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Saul, HWV 53: Act I Scene 1: The Youth inspir'd by Thee, O Lord (Chorus)
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Saul, HWV 53: Act I Scene 1: How excellent thy name, O Lord (Chorus)
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Saul, HWV 53: Act I Scene 2: Air: O God-like Youth! (Michal)
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Saul, HWV 53: Act I Scene 2: Recitative: Behold, O King… Young Man… The Son of Jesse (Abner, Saul, David)
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Saul, HWV 53: Act I Scene 2: Air: O King, your Favours with Delight (David)
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Saul, HWV 53: Act I Scene 2: Air: What abject Thoughts a Prince can have (Merab)
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Saul, HWV 53: Act I Scene 5: Air: O Lord, whose Mercies numberless (David)
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Give Thanks: Classical Music for Thanksgiving
Concerto Grosso in B Minor, Op. 6, No. 12: Larghetto
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Concerto Grosso in A Minor, Op. 6, No. 4, HWV 322: III. Largo, e piano
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Concerto Grosso in A Minor, Op. 6, No. 4: Larghetto affettuoso
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Requiem: Classical Music for Reflection and Meditation
Handel: Allegro, Il Penseroso Ed Il Moderato (L')