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 0x688ca6e921032f0259dd250a5aef0252b7c9a8555c2ac495b5a24e76f8e5e90e. 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/9f435708-8edd-4fbc-a5ac-22558f6a2bf3.json and https://artists.proofprofile.net/proofs/artist/9f435708-8edd-4fbc-a5ac-22558f6a2bf3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vivaldi: La stravaganza, Op. 4: Violin Concerto No. 6 in G Minor, RV 316a: I. Allegro (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
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 0xf8d63f9f69b1a572772868ac1cf9ec513981c037d92191492b798b5cd0a0ea2c. 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/GBAYC2400481.
Vivaldi: La stravaganza, Op. 4: Violin Concerto No. 6 in G Minor, RV 316a: II. Largo (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aaab0267fffa2a00b281cf931c415d1ba6d5e84373960237645ee20628692ef. 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/GBAYC2400482.
Vivaldi: La stravaganza, Op. 4: Violin Concerto No. 6 in G Minor, RV 316a: III. Allegro (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fffa5cc8490a96f18a4714b80cf78e3f182d33accf1d4fce3ceccfcc2133c0. 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/GBAYC2400483.
Albinoni: Oboe Concerto in D Minor, Op. 9 No. 2: I. Allegro e non presto (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2f7d4007c72f891ff2a29820a5e7a5475c82805882fe9f1101369e5175ef33. 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/GBAYC2400484.
Albinoni: Oboe Concerto in D Minor, Op. 9 No. 2: II. Adagio (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3edfbf386f01fc5b3efb6b3967f7b2956562a06554d549960a6b0416ee15a38. 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/GBAYC2400485.
Albinoni: Oboe Concerto in D Minor, Op. 9 No. 2: III. Allegro (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31961de9f4aadbb697ce3afc26c2af9acbaa5114efa60d9c04991be5e3c5775f. 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/GBAYC2400486.
Vivaldi: L'estro armonico, Op. 3: Violin Concerto No. 9 in D Major, RV 230: I. Allegro (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fa794fead998732e6aa63ae31bede441754027ad923369739c5475afe72172. 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/GBAYC2400487.
Vivaldi: L'estro armonico, Op. 3: Violin Concerto No. 9 in D Major, RV 230: II. Larghetto (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97845292bb27cb5ad8bce7966a481e2d61d8c61ce92d7495ad26acf689a88cff. 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/GBAYC2400488.
Vivaldi: L'estro armonico, Op. 3: Violin Concerto No. 9 in D Major, RV 230: III. Allegro (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce34f6a2e14aa4445e137c0b35eecf30978e2ef28a34b58e82a1488206590b4d. 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/GBAYC2400489.
Marcello: Oboe Concerto in D Minor, S. Z799: I. Andante (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5406cf7cd006c2cbc51bd4c46e686ac8e224c9ca57d149b8c2df46ee1b1941a. 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/GBAYC2400490.
Marcello: Oboe Concerto in D Minor, S. Z799: II. Adagio (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b3df567deed18770c55f4092fdbfb7c6d4c2bbabe6a52c2dc60a0e3db1e6300. 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/GBAYC2400491.
Marcello: Oboe Concerto in D Minor, S. Z799: III. Allegro (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790bf92ada485141020a81dbf6e496e7885f84b43d8da84e49b3f4ed935d559c. 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/GBAYC2400492.
Telemann: Oboe Concerto in F Minor, TWV 51:f1: I. Allegro (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e6d8a40f5b52347571a7753d8c82146fbec4d32c862a3fe4eca26bb10f08f96. 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/GBAYC2400493.
Telemann: Oboe Concerto in F Minor, TWV 51:f1: II. Largo e piano (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e57054ae81eadebf38fe7c244adc72a16aa4801d20cfb4dc2d61dd163372a5. 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/GBAYC2400494.
Telemann: Oboe Concerto in F Minor, TWV 51:f1: III. Vivace (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccd47ccd64f799d9dbe56fc8eb0324b08f3c28fb934548442967e55e637d17f. 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/GBAYC2400495.
Handel: Concerto grosso in D Major, HWV 323: I. Overture. Larghetto (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64668f1a6eee454301b4ab6bcbd2899dc7da1d9dc8f45f162be3ddce20393951. 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/GBAYC2400496.
Handel: Concerto grosso in D Major, HWV 323: II. Overture. Allegro (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa633e4a919fbaa9ce405927ff3cd167c1332ec074a522a36c446938146433341. 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/GBAYC2400497.
Handel: Concerto grosso in D Major, HWV 323: III. Presto (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b4ee46729346b1c02a66f1ce0f5ee63fe7e67581e34c53fa6a4e6a4196c17f. 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/GBAYC2400498.
Handel: Concerto grosso in D Major, HWV 323: IV. Largo (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b8dec4eefe95244177dd7dc823ba2f736595254726f276c57d77d6c98fa07a. 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/GBAYC2400499.
Handel: Concerto grosso in D Major, HWV 323: V. Allegro (Transcr. for Piccolo Trumpet and Baroque Orchestra by Simon Wright)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2357e3cabd4164706fbc3782b45bcde11d0c6b81e071e5635837e73e3d4fd3b5. 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/GBAYC2400500.