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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea248357d6b63e38669dd392a7d15f2cfd4ed7425a5213f80f7d7e7b6f89db11. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/288a73d6-17f9-4797-ace0-6655013c0cf5.json and https://artists.proofprofile.net/proofs/artist/288a73d6-17f9-4797-ace0-6655013c0cf5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tchaikovsky: Symphony No. 3 in D Major, Op. 29 (Digitally Remastered)
Saint-Saëns: The Carnival of Animals (Digitally Remastered)
Paganini: Concerto for Violin and Orchestra No. 1 in D Major, Op. 6 (Digitally Remastered)
The Carnival of Animals: III. Wild Asses
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a12a02087f1803f8522f5917569c1a03f5b3f899243f60803d618dc5dcb5566. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSJ10901526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b41f64230942eeb60ffd487869f4e873cf6828036df0475ddca637fbbd98dcb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSJ10901533.
The Carnival of Animals: XI. The Pianists
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728602ea4deb2c4fd64449f40f4cab05c5625f27c8faa4533dee10dafe50b7d2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USSJ10901534.
Saint-Saëns: The Carnival of Animals: XIII. The Swan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81012d529a2bdd792b987fe4a548a40c682aee1ad1d25832b66126a22c4f24f2. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSJ10901536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f52435b2d7218edbed7c77dfd5ce3f10b03739636ce09e8321724e01d10eb8. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USSJ10901537.
The Carnival of Animals: I. Introduction and Royal March of the Lion
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2d6f4e7e2a8a82ef89190b24919026efb38fa80c1a8bad7c5bb2b445099aa8. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/USSJ10901524.
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
The Carnival of Animals: II. Hens and Roosters
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x299eaa11e4307c18e2ab819c60c73be899dcb648155a822c0ce7057011e0588c. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/USSJ10901525.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ddc7d6f09422603f3fc17e19444ee705aaf1bff6633c8b56e4da2e5fe43d6c5. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/USSJ10901527.
The Carnival of Animals: V. The Elephant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67c03bafac17f0affe11a32823cb53589fbfbc37a9f97849632fdfb60d5d4e65. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/USSJ10901528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fcb55516b0b9c98fb7510f7b1c8db80a794b2531bf5cdeedf6cf6b126b87a8. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/USSJ10901530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06a1310f542dcec7a736a6c5770ab7390d5b8cddf3fe5a8088e681cf796852ea. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/USSJ10901535.
Dittersdorf: Sinfonias On Ovid's Metamorphoses, Nos. 1 - 3
Symphony No. 1 in C Major, "Die 4 Weltalter" (the 4 Ages of the World): I. Larghetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe09feb756bc15c439c67158429b3c3e87e6eff9f94bd7c1aece028b2fcdd2ac9. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/HKI199370501.
Symphony No. 1 in C Major, "Die 4 Weltalter" (the 4 Ages of the World): III. Minuetto con garbo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af2c2b36dcaf33410fd72df638415b7a0cfae27aa145fd28f4fb4eb85a307f2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HKI199370503.
Symphony No. 2 in D Major, "Der Sturz Phaetons" (the Fall of Phaeton): II. Andante
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd164edeeaf2b7cb24dc6a040af00480754135119f48caabf87a7d2fc2b4b82c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/HKI199370506.
Symphony No. 3 in G Major, "Verwandlung Actaeons in einen Hirsch" (the Transformation of Actaeon into a Stag): III. Tempo di Minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62f82d80a9ca8442338a6a147b852e79ac2f30c121ac0e46422575b23934e83. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HKI199370511.
Symphony No. 3 in G Major, "Verwandlung Actaeons in einen Hirsch" (the Transformation of Actaeon into a Stag): IV. Finale: Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255aab0cdba1401afd1b803a0b1b65fad1daaee4a4036a6b90ae97cf6350c4c0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HKI199370512.
Symphony No. 1 in C Major, "Die 4 Weltalter" (the 4 Ages of the World): II. Allegro e vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x442f0d21bf6223e68048c2be733eb5e7af859a1441d4ce2ae6aa058bdaad4417. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HKI199370502.
Symphony No. 1 in C Major, "Die 4 Weltalter" (the 4 Ages of the World): IV. Finale: Prestissimo - Allegretto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x867fee8df85fe387a8f55b2dbd90f6403b1e88b885275e66ea1101ee8ba8a12d. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/HKI199370504.
Symphony No. 2 in D Major, "Der Sturz Phaetons" (the Fall of Phaeton): I. Adagio non molto - Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7259c1dcba07b26e3518dafd5a47e3c45089822d2994256715d6ca1f98b0f6df. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/HKI199370505.
Symphony No. 2 in D Major, "Der Sturz Phaetons" (the Fall of Phaeton): III. Tempo di Minuetto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddea84a39aa917cdfbcc610c1a2a7c14767b88a6fa7e2aa55db412aa30c53ed0. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/HKI199370507.
Symphony No. 2 in D Major, "Der Sturz Phaetons" (the Fall of Phaeton): IV. Finale: Vivace, ma non troppo presto - Andantino
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a8c5a7360f097d9970cc51d9171b24cd28b7218c78b095d5fb1bad9c9c2123. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/HKI199370508.
Symphony No. 3 in G Major, "Verwandlung Actaeons in einen Hirsch" (the Transformation of Actaeon into a Stag): I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b63678fb55a7dfe83d37be7bb4524c9f06110b1bc72123c07f36c3300bb83f1. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKI199370509.
Symphony No. 3 in G Major, "Verwandlung Actaeons in einen Hirsch" (the Transformation of Actaeon into a Stag): II. Adagio (piu tosto Andantino)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde78284d79a410cd1ea6f64d67c30be9b28d378e386c18e08652f4f7973d8974. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/HKI199370510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f2018f702a62add4141a97be1756b707963c9aabff4a60b26ccb3aa608d03d. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITS041713752.
Weill: Little Threepenny Music (Digitally Remastered)
Classical Selection - Rimsky-Korsakov & Mussorgski: Scheherazade, Op. 35 & Pictures at an Exhibition
Verdi: Il Trovatore (The Troubador) [Digitally Remastered]
Verdi: Aida (German Version) [Digitally Remastered]
The Classical Collection - Beethoven - Obras maestras melódicas
Schumann: Concerto for Piano and Orchestra in A Minor, Op. 54 (Digitally Remastered)
Telemann: Suites for Orchestra - Suite for Strings & Basso Continuo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443bbc7ea4a3b21a2cfd90fb9ac7e9a31cc409704c38d6852adb3e66371e5c5c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSJ10500310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a727c3d3027742ce5e3be15f99a2b4960af999c810246c7e2b6f666dd099ce8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USSJ10500318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0e8c67a15c77bf6af2698b8b32d78560b6f452e71d28298ff7b58ebab38ba3. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSJ10200702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94e87e24505dd17c1e795820936e6d494a3f80425a891d6678e40f7ea1dc0e1d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USSJ10200704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57034d436fa8f0561e72e465a8f9b7098379c7313d4a5b97de512b42c50c92dd. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/USSJ10200705.
Auber: Fra Diavolo, The Black Domino, The Dumb Girl of Portici & The Sirene Overtures
Grand Overture in E-Flat Major, Op. 18, No. 1, W. C26: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb84497c6b72a4535bdaa0120e18e061e2793229b58b14a282fbab66f5c89e18. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/HKI199204603.
Beethoven: Piano Concertos No. 4 Op. 58 & No. 5 Op. 73 "Emperor"
Piano Concerto No. 5, E-Flat Major , Op. 73, "Emperor": II. Adagio un poco mosso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3d547c3931558606d5fcb49379610e0b1df20bf734b660fa964bcb8a95ff533. 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/USV291432236.
A Guided Tour of the Classical Era, Vol. 2
100 Most Relaxing Classical Music In The Universe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b1d632f8b04d96bce4c2108a0adc6f3372417483a1286c8579c5d42c43927bf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USSJ10813859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1a09877249f42012bbd7cfb35400dba0b0ee1e41ae65710b19e92101781df0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USSJ10813856.
Le Carnaval Des Animaux (Carnival Of The Animals), Zoological Fantasy - Aquarium
Top 200 Classics – the Very Best of Classical Music
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