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 0xfc750092287e8e2c9c526bb9552ef6742b924d558425b80a1c21ce4a714b43e8. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/47b3cd2e-d68e-4350-8f17-4eedddee9d36.json and https://artists.proofprofile.net/proofs/artist/47b3cd2e-d68e-4350-8f17-4eedddee9d36.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.
Charpentier: Missa Assumpta est Maria, H. 11: XVII. Et in Spiritum sanctum
Missa Assumpta est Maria, H. 11: XVII. Et in Spiritum sanctum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x719b28889475cdad61ae73aa73478762aab225c1872b224a8b98f4827e63a8ce. 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/FXR522415017.
Psyche, Act III Scene 1: Song of Vulcan "Ye bold Sons of Earth"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc633f274e19c3ad244ecac77a369dbe0637cc38a4c7dc157ff6658f9f3e6322. 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/FR7JM2141030.
Le bourgeois gentilhomme, LWV 43, Act IV Scene 5: Ti star nobilé é non star fabbola (Le Mufti, les Turcs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15660dd03fd6302c34df0ade7267f516d3b456587b0f8777e25db3385fe17bc2. Chain 2 (Bitcoin): anchored in block 957065 (2026-07-07T16:43:21Z), 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/FR9W12137028.
La Pastorale comique, LWV 33: Ballet des magiciens – Première Entrée – Déesse des appas (Trois Sorcières) – Ô toi qui peux rendre agréables (Une Sorcière) – Seconde Entrée – Ah ! Qu'il est be
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c55a25bfaa4b837fb28572863df22215922ffd6d7e99cefff25c98a23fbf144. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/FR7JM2346040.
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
Médée, H. 491, Prologue: Trio et chœur. "Paraissez, charmante victoire"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf1968d94753b2df9e243247b9f5e494a17dd03336af17b6ff39b6690b2ae25b. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/FR50X2302004.
Médée, H. 491, Act I: Trio et chœur. "Que d'épais bataillons" (I)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0887b065acaa73f56f2d45916fde1434b9abd532fb07066e657ef2f66f1dc226. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FR50X2302032.
Le bourgeois gentilhomme, LWV 43, Act IV Scene 5: Dice mi Turque (Le Mufti, les Turcs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0464a01ec66cf2647c2f78a5f810b090263e6ba9c3007e150a43354036dc209. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR9W12137024.
Le bourgeois gentilhomme, LWV 43, Act IV Scene 5: Mahametta per Giourdina (Le Mufti, les Turcs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e43b6714d4ad14b9a996274e57025319df4f157f5843ef77c34b2acb5e4c050. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FR9W12137025.
Le bourgeois gentilhomme, LWV 43, Act IV Scene 5: Ti non star furba (Le Mufti, les Turcs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce47b9350b13ed217cfd69ac71452db140819a3aac0deeee75c9dd61b91459bd. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/FR9W12137027.
Le bourgeois gentilhomme, LWV 43, Act IV Scene 5: Non tener honta (Le Mufti, les Turcs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb9b9513b02feae4ff67b05ba70e1048a14c853646539ecf9b45151d5f910f2. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/FR9W12137029.
Le bourgeois gentilhomme, LWV 43, Act V Final scene: Le Ballet des Nations. Troisième Entrée – Les Espagnols. Se que me muero de amor (Premier Espagnol plaintif)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cfb05f474a0e12e045eec4ad17a6f89adda9ca535ba32f062dcc96cee6c8936. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/FR9W12137095.