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 0x88b7bc6c3e79caf19b0128c5ce249ac9f6b415fad49b2f96f66542621bc88f7d. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04381976-3376-4a67-8a66-7ff570cbf2b3.json and https://artists.proofprofile.net/proofs/artist/04381976-3376-4a67-8a66-7ff570cbf2b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fidelio, Op. 72, Act II: Gott! Welch Dunkel hier!
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 0x18e9af2928b59001d6ba6f796d2d7c8a3123913d1d84869c09a70509449bbaad. 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/NLE422005623.
Fidelio, Op. 72, Act I: Aria, O wär' ich schon mit dir vereint
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22554d3ec50395479d1adf398c8aa3fae6aa45e1e14d933a92dbe1a250bfca66. 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/NLE422005604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e6ebdf66e0767f98ac8cb4b7e5bdcd2571fbebb11a099c9fd6a1ac06a85760. 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/NLE422005605.
Fidelio, Op. 72, Act II: Euch werde Lohn in besser'n Welten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0b9cfd383776d9edc02ff40ab9ccc8454f1ebe1d9c58c70591caea4cdf7d11. 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/NLE422005627.
Fidelio, Op. 72, Act II: Quartet, Er sterbe!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0603a51884b95cadcf79a2f9f0870a0dcd17f43646e8a090cf9ebc132e98c02f. 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/NLE422005629.
Fidelio, Op. 72, Act I: Hat man nicht auch Gold beineben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cac035e9d957515b377a1c1c50d070f0ac74b96e2265adbd85ecb70e1256de4. 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/NLE422005608.
Fidelio, Op. 72, Act II: Es schlägt der Rache Stunde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983d2dcf947edfb603f4f6769fdb76621a297fbf06e30b11663d4ca540e9fb20. 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/NLE422005631.
Fidelio, Op. 72, Act II: O namenlose Freude!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b315c779485ea186b3ce3e760cc02f357c30cec9a8a763cc16d055b059fbc5. 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/NLE422005633.
Fidelio, Op. 72, Act I: Ha! Ha! Ha! Welch ein Augenblick
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf82456684d7852084b82e3190f4aa50a433ffa81021cb6efafb6dca8c55adb. 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/NLE422005613.
Fidelio, Op. 72, Act II: Heil sei dem Tag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969ebc9a67041db533b3471583929318a28be146ef0acea213d129dcdc380b75. 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/NLE422005635.
Fidelio, Op. 72, Act II: Des besten Königs Wink und Wille
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604c9f28e432a340dd4585550ad5d471482fcfa3bf76c1ba45f7252288a5858e. 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/NLE422005636.
Fidelio, Op. 72, Act I: Jetzt, Alter, jetzt hat es Eile!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56c0a37c4481e1c4cc6416766f190bea339754bc3c27feec4a91d666bddc23d3. 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/NLE422005615.
Fidelio, Op. 72, Act II: Wohlan, so helfet!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a46ac0cf27d12dcac9b7985a2f9f83efdd2e6cd0b66ce069cdf9a0c3155438. 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/NLE422005637.
Fidelio, Op. 72, Act II: Wer ein holdes Weib errungen
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe06e2610a478003e02f5b04d443d1b803bca41d20280bdf5f5f01fbbfa8e0480. 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/NLE422005639.
Fidelio, Op. 72, Act I: Verweg'ner Alter!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daff918641c13121862be318e549c4d2aee08cb47e645218d065a15969601f4. 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/NLE422005621.
Le siège de Corinthe: Que vais-je devenir ?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200641fea84b3d6fc331c102e310d587dc7b61c389f48feb7a128713fb75762b. 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/NLE422103401.
Le siège de Corinthe: Du séjour de la lumière
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ad2073c5f3f4d5e455e0b89c7bf166abfa53b082df601142ffb6eed52d15b9. 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/NLE422103402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cfedc633984adb06f245d476f826f2fe7dc8a751fe615ad225327416657b6f. 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/NLE422103406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9d1dfa68b418bc025bd9a36314e840bd7130a243603df8129522accdf294f8. 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/NLE422103409.
Lucie de Lammermoor: Que n'avons-nous des ailes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c94fa2c3bf2c57ce051077eb8098b3b5f8fa69736a79db8aa839b89bcb0c45. 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/NLE422103412.
La Fille du Régiment: Salut à la France !
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5c742704ddbcf1b5cde7e1bbd756d32a556a1fd3620c4da8bc6b5981fc0ba9. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/NLE422103415.
Le siège de Corinthe: L'heure fatale approche
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02efa94fcd571676bb7bd141bd2a97c42b083e49615216032af9eda3e1b49969. 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/NLE422103403.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f239510cfb68b070efb9ca71af1ff6174ab8aaadeca934d7f2f2d81db171b4. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/NLE422103404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1eff16eefbd1da839076f3ac7cc21c884b5dbc0edda9b6cd133550b6f6f2884e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLE422103405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89cbdc4672cf662c65e5b667101750fa494e85dd1edc4ab777b55c2059b9ad0. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/NLE422103407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f556145a46d913d1c84a8598932f5aab7ec4a78830a5bed64264f3a973aea9. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/NLE422103408.
Les martyrs: Qu'ici ta main glacée bénisse ton enfant
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b4dc6a1aa79896b5cba7a54b67c0437773f76de9027836342d5b9c1f06ef26f. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/NLE422103410.
Lucie de Lammermoor: Gilbert. Ô fontaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f7a6334af6e2a1de484ae3bbf3d4f89e761b4d50365066d758a8e39a4e29e9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/NLE422103411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x784379d43d83bd7e391e7bd46e9ae9b7dc016df8bbf757f310d5ff6d1344e8f3. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/NLE422103413.
La Fille du Régiment: C'en est donc fait
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb1077bb8f58299364dc703338e42b7f6fc390ab097a219222f89375425b1d4a. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/NLE422103414.
La Traviata, Act I: Dellínvito trascorsa è già l'ora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6660368df277973e6cb78a5b94e954542346b6fbf71f05eb64525f05edb3b8d8. 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/NLE422103502.
La Traviata, Act I: Libiamo ne' lieti calici
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b22c02313dbd51ac24e5cbe0b09b37ce044dfedf57cd4546a8ec0ade8b82851. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/NLE422103503.
La Traviata, Act II: Di Madride noi siam mattadori
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ee61132f3c670e1774ff709c69855324671b228407e06038933ef76c6c250a5. 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/NLE422103513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e934473bb8abb0fa4beffc1afb43c73c4e60a1b10b6f7d6693eecc47d0b54a2. 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/NLE422103506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9129e247c11929f0876e9508c42fa7d83c8d18a9f688e360f501a5cc686e0e. 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/NLE422103515.
La Traviata, Act II: Lunge da lei — De' miei bollenti spiriti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4f932ed0d900edad31f6d3c1766322a195a35b0a228694cbf81f3de59efbd83. 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/NLE422103507.
La Traviata, Act II: Invitato a qui seguirmi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95055b10ef4c53ffd3f0e60fba892dfaf9b3663343387b648b047d01e198abc2. 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/NLE422103516.
La Traviata, Act II: Dammi tu forza — Amami, Alfredo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e4d8c4e37e0871cc716bf07f0f6f8eaef0b2e85a691651d2c83e5b2a0cb012. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/NLE422103509.
La Traviata, Act III: Scena e Duetto Violetta ed Alfredo: Signora… — Parigi, o cara, noi lasceremo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc7e7ff3bed5b6036f9c81f8e2840d592733a92c8f65f19b4f5770407e3fdd3e. 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/NLE422103524.