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 0x4dca3be0ca9fd1a6df7cf4b276e47d9a686ee739ec8f4710524f76090e710f14. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6943f9bc-e9e6-489f-94f1-9e888f6f8ab8.json and https://artists.proofprofile.net/proofs/artist/6943f9bc-e9e6-489f-94f1-9e888f6f8ab8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Les fables de La Fontaine (Live at L'Estran)
Colin de Blamont: Les Fêtes grecques et romaines
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 0x7e529adb9e24a00f59cb366d8eba1bf0d9610ac2f1bc355b6f466f0c5674047f. 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/FXR522309801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a32cc6721037985b7f3a7ad5043a5a7ac7f379c9ab3bbfb939f6b8f759092b. 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/FXR522309819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc37df58e9d93dd43797cc611db9c205c5e9bc86585a0455457cbcf280802cba1. 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/FXR522309821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x835cc31609901d612980ce9088d62c5bdca6df460b10d079e116d385e6d4b90f. 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/FXR522309824.
de Blamont: Les Fêtes grecques et romaines, Prologue: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6311fcbabdf5bbf52d4eef248438d0dd5b75d26d43efc776e4b3933ec9063289. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FXR522515301.
Platée, RCT 53, Prologue Scene 1: Ariette Charmant Bacchus (Thespis)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79fd30f372d7c04ee2827828db4d469a66da8d9aeab17be7b75449e860fd7add. 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/FXR522515311.
Platée, RCT 53, Prologue Scene 2: Récit. Dans ces lieux, Jupiter lui-même (Momus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7501fdd806898c7875b81459e0c1089d788c7f11b0ff0ef106468d878298a92a. 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/FXR522515317.
Platée, RCT 53, Prologue Scene 3: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab48fc4913d6cbd5c0ea33e4a2f127856b0d70bb7e7f98e6821ae7e970a35197. 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/FXR522515328.
Platée, RCT 53, Act I Scene 1: Air. Dieux, qui tenez l'univers (Cithéron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e1d727a8b97623fb799f1003c5bb0b78831b347b840fa7155f8129544ebcdb. 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/FXR522515330.
Platée, RCT 53, Act I Scene 3: Ariette badine Que ce séjour est agréable ! (Platée)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3e57466ec6e4b52d44d27be10a1d13b31fccdf5261fcc75cc4ce18ca7f9da0f. 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/FXR522515334.
Platée, RCT 53, Act I Scene 3: Récit. Sur quoi fondez-vous l'espérance (Clarine, Platée)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb19b5c9f711fe9caca07ce503b79a6b8c14435d4f803869f7100c439ebc8e902. 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/FXR522515335.
Platée, RCT 53, Act I Scene 3: Chœur. Que nos voix applaudissent (Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc99900e074a2dfe1931e25ad77a7087a5ac34f2a7540f351217f4bb7dcef79d7. 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/FXR522515338.
Platée, RCT 53, Act I Scene 4: Air. Je m'attendris (Platée)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbadbc98fd6fcb2d506800149f7345fc8d43d4221a721b0107a056bc0f02a6e3b. 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/FXR522515342.
Rameau: Platée, RCT 53, Prologue: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6311fcbabdf5bbf52d4eef248438d0dd5b75d26d43efc776e4b3933ec9063289. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FXR522515301.