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 0x716064781eea202196effb842f4a8cb280a173c1844f47a4addce0f38aae1dba. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9896585-4647-4b50-b40a-7d65fe7f4f0b.json and https://artists.proofprofile.net/proofs/artist/a9896585-4647-4b50-b40a-7d65fe7f4f0b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x2d087c96ad941205607b576691d372567be176d04dd00d43bcc11cbe8c514881. 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/FXR522412401.
Armide, LWV 71, Act III Scene 1: Ah ! Si la liberté (Armide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0cf5fb6b225b473c26f8af26f344189bfea7299a3d66f48e8b4147a951dbcca. 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/FXR522412437.
Armide, LWV 71, Prologue: Tout doit céder dans l'Univers (La Gloire, La Sagesse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411848c19921f8890c74483860eb098bcb21a4ff37b93cd5edb7a4947d3f6afa. 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/FXR522412402.
Armide, LWV 71, Act III Scene 2: Que ne peut point votre art ? (Phénice, Armide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37fbd00584725ce475f9a4a1eed883da520100bf4ad9bfcc54b76817d4ae3fce. 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/FXR522412438.
Armide, LWV 71, Act III Scene 4: Je réponds à tes vœux (La Haine, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b840a27b01c3c0376e021f59203d955f721155fb3f71f95338c9f9d36093fcf. 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/FXR522412440.
Armide, LWV 71, Prologue: Suivons notre Héros (La Gloire, La Sagesse)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38f79b6183e148513c03e4dac7ad1a1dde8aa2d08c934df6124ac7dd1b536d2f. 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/FXR522412407.
Armide, LWV 71, Act III Scene 4: Sors, sors, du sein d'Armide (La Haine, Armide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6158e09fa41a8a913b0e9ef8a39240cfda2852460445be020c8c4a52151d15d. 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/FXR522412444.
Armide, LWV 71, Act I Scene 1: Dans un jour de triomphe (Phénice, Sidonie, Armide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f690c3f38e0da90b72f34198108d93f19847eaf10a18ea9cfad05fc6fc2a7b1. 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/FXR522412413.
Armide, LWV 71, Act I Scene 2: Armide, que le sang qui m'unit avec vous (Hidraot, Armide)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d91cfb5332db28c9e7aac89eb581164c3f774b8fffa19b5e9c046a3f49c1c59. 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/FXR522412414.
Armide, LWV 71, Act I Scene 3: Suivons Armide et chantons sa Victoire (Phénice, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69856a830ea7ab1b94e6e1a93f9ba9eb879a19780f640041d5e6142defbd6af. 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/FXR522412418.
Armide, LWV 71, Act I Scene 3: Sarabande (II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ea47690bfad8cb7992df0833e5cbf3fb647c1305afe47ad20a19332ac7e192. 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/FXR522412419.
Armide, LWV 71, Act I Scene 3: Que la douceur d'un triomphe (Sidonie, Phénice, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd4ab5af2830578519a63462368f6c1bf8a5484e30ad9c5eadf2db8cd4fff42. 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/FXR522412420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b8f4e052e4b01af9299424dcbbba3a719dae5a0b386c945645c00ce9d256e3. 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/FXR522412424.
Armide, LWV 71, Act II Scene 4: Au temps heureux où l'on sait plaire (une Naïade, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821346167a2d4c2efdfcc6a4d99d597c26b870c420752a9f0933f1e47bad4591. 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/FXR522412428.
Armide, LWV 71, Act II Scene 4: Ah ! Quelle erreur ! (une Naïade, Chœur)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a7c9934a068389d97e26f35bfae7582649fb13401609cb504b0b64b5437f2f. 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/FXR522412429.
Armide, LWV 71, Act II Scene 4: On s'étonnerait moins (Bergère)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22049e3d436bbf88d3c2d8cdd0fe7f866c65e7731bd1d9cb4fbcac93fc70ba0. 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/FXR522412432.
Armide, LWV 71, Act II Scene 4: Second Air (II)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70776514e08f2e975edc28ea44074f3b2069f65c3ef204df99689dfc32c7d3f1. 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/FXR522412433.
Armide, LWV 71, Act II Scene 4: Laissons au tendre amour (Bergère)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f67af8ea2b27017a04a4550526083754b66bf1bb2190b0d1937aef6b472f7d. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FXR522412434.
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
Dies irae, LWV 64/1: IV. Inter oves locus praesta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6613204be91f71f795c0d1f00a5dde4af802d9c4be8d3b1a8807bfbc0ce6f057. 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/FR9W12033448.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b767d09bba1ffb74236070713069e9cdf3aeb7185b561643c7c584817520341. 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/FR9W12033454.
Couperin: Messe propre pour les couvents
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86324840d21821b7022fa134d25edb98b79f8b94b6aefbd55a6e83fb155b6db. 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/FXR522310201.
David & Jonathas, H. 490, Act II: Ouverture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e8dd3ce43f0304e3cf141a47b8ea29c3ff3c17f12efe0bda3ced795345a240b. 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/FXR522310219.
David & Jonathas, H. 490, Act II Scene 1: Quel inutile soin (Joabel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b9fb2c8a88fb74030e45eec5e993545c429fb7475e87e96e13f437261cdb85. 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/FXR522310220.
David & Jonathas, H. 490, Act II Scene 2: Dépit jaloux, haine cruelle (Joabel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ae790340ecac69807674239825c31398a0f422a231efc82070b58366e7e7b4. 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/FXR522310222.