The Indianapolis Baroque Orchestra is a Baroque orchestra dedicated to performing music of the 17th and 18th centuries using period instruments and historically informed performance practices to enric
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 0xe1fac4df97646e2cdd350befd068a52f22dc14fe017f35ff1746a9a957c7b0b8. 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/a6eda629-2b09-4332-9f7a-7bda8a1e9d9a.json and https://artists.proofprofile.net/proofs/artist/a6eda629-2b09-4332-9f7a-7bda8a1e9d9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ariane et Bacchus Suite (Excerpts): Ouverture
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 0x176fbc0a0b816bc9d5665cf0a5a5d07571d1d88166b7e34909936321bd3f1137. 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/HKI191727914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b225befd85d20afbb4e7cd31841fcd84132c7152b1111c3f945a1a3a78e192. 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/HKI191919301.
Concerto for 2 Flutes & Bassoon in G Major, TWV 53:G1: I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33ed84c392539d7cbe7890dcdbca4e7d9bfd3955e93ecb1528bc993e209a8132. 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/HKI191919302.
Concerto for 2 Flutes & Bassoon in G Major, TWV 53:G1: III. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc757bd60c2b4023dd038902ad40fc77ac1cbd14355bf6967ecd24b6e0ef303fa. 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/HKI191919304.
Concerto for 2 Flutes & Bassoon in G Major, TWV 53:G1: IV. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c6631fa79090a91e88096fc5ec3d8a9a672862e5caa1962762306e40f78e610. 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/HKI191919305.
Sonata in E Minor, TWV 50:4: IV. Tendrement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c3e30ab5392120cb4eca793bb22eaf65cc743b122017b6885a223ae197c98d5. 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/HKI191919309.
Concerto for 2 Flutes, Violin & Cello in D Major, TWV 54:D1: I. Vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa202d109415a5ef702efd1c29a7fbff5ea6ee56e08538e3ec983b18e8fbec658. 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/HKI191919311.
Concerto for 2 Flutes, Violin & Cello in D Major, TWV 54:D1: II. Siciliana
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e0ef8e9e548d74c7d1b04dfb3d747a030602edef1b1776b8d90e70716ae0e3c. 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/HKI191919312.
Concerto for 2 Flutes, Violin & Cello in D Major, TWV 54:D1: IV. Gavotte. Presto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x507eeee69d330f3923bc41098c468c5e266b4047668d5a0773146114fe40d6b2. 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/HKI191919314.
Sinfonia melodica in C Major, TWV 50:2: II. Sarabande
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa2ae183bbef1091549026d7c924ab3162078b62131bf335e91b5f0421efcd23. 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/HKI191919316.
Concerto for 2 Flutes & Bassoon in G Major, TWV 53:G1: II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c970d73bf5fc24f38b2582f298d207c685b6fab0564265ed30c05ac6f77f30e. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T19:02:23Z), 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/HKI191919303.
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
Sonata in E Minor, TWV 50:4: I. Gravement
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ebe566dbf61542ac487f461f2a54de36da5aa164ce43c7ccdc83ec105ea810d. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/HKI191919306.
Sonata in E Minor, TWV 50:4: II. Alla breve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e27dff8daaa198caaeb46f84784fc7937ef88722a4c8cfb6a80ec8612ad64f4. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/HKI191919307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf3d6dc93301d833808968203cb22300f195bccfeec8dcad4d609a788f7e3082. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/HKI191919308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09727e037ff46ab82bd1bd49363c3e224c359583c012b773ec5a4722dad439b2. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/HKI191919310.
Concerto for 2 Flutes, Violin & Cello in D Major, TWV 54:D1: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f17b67e3cf384096478a47c4102bba3373f7177ac70195aeb4daffbfb41bce. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/HKI191919313.
Sinfonia melodica in C Major, TWV 50:2: I. Vivace assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e26df4aa63bac811e17c4246597033e315f984c2e5fc481f37d4d9f79fa6110. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/HKI191919315.