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 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 0x88b7bc6c3e79caf19b0128c5ce249ac9f6b415fad49b2f96f66542621bc88f7d. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). 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, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x978bdbd68ce898a6ce16d6c8f203db6f3f3093b61f5e150fe72a45b4c57667e0. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005601 — a six-check JSON result.
Fidelio, Op. 72, Act II: Gott! Welch Dunkel hier!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e9af2928b59001d6ba6f796d2d7c8a3123913d1d84869c09a70509449bbaad. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005623 — a six-check JSON result.
Fidelio, Op. 72, Act I: Jetzt, Schätzchen, jetzt sind wir allein
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76310a3e21883d55162f7ac0880938df98f31baead7eea2d903c2f80fde8b34f. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005602 — a six-check JSON result.
Fidelio, Op. 72, Act II: Nur hurtig fort, nur frisch gegraben
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48f2e5f41b57bbe4b01c9cf1f86c85491e7da96d57bc33056a578111b0c1605. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005625 — a six-check JSON result.
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005604 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adb7310753defb153de024f4fcce6f8d88c91e6dce7d5805e52a1b31c01f72b. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005626 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7e6ebdf66e0767f98ac8cb4b7e5bdcd2571fbebb11a099c9fd6a1ac06a85760. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005605 — a six-check JSON result.
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005627 — a six-check JSON result.
Fidelio, Op. 72, Act I: Mir ist so wunderbar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46ccb277f4845c8fc76bfc5e115d5573efaef3aa18c2b653a212563597bb32f2. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005606 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005629 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005608 — a six-check JSON result.
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005631 — a six-check JSON result.
Fidelio, Op. 72, Act I: Gut, Söhnchen, gut
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9688c26d78acb64953353b051dab60ffc7b1a2b49bf4a4652eaa071065f210e4. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005610 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51e535d38d18d5bba709cbc63b2e32fa1ba9944e2f78f0056bd7cb12ac930b99. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005632 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4e7b26bff6f3584c313c6f9a26cc5c0f568ed2a8fc03dfaeb0bfa873e403f2a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005611 — a six-check JSON result.
Fidelio, Op. 72, Act II: O namenlose Freude!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b315c779485ea186b3ce3e760cc02f357c30cec9a8a763cc16d055b059fbc5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005633 — a six-check JSON result.
Fidelio, Op. 72, Act I: Wo sind die Depeschen?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6e08488b029aeb2eb8bf578e5c2f91963c8f3f238d7ab7e565938206c33cfdc. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005612 — a six-check JSON result.
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005613 — a six-check JSON result.
Fidelio, Op. 72, Act II: Heil sei dem Tag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969ebc9a67041db533b3471583929318a28be146ef0acea213d129dcdc380b75. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005635 — a six-check JSON result.
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005636 — a six-check JSON result.
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005615 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005637 — a six-check JSON result.
Fidelio, Op. 72, Act I: Abscheulicher! Wo eilst du hin?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b55adbe80da7aeb040afb5c849bf5e9677bcb1908d7a90a538b12d4829b046. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005616 — a six-check JSON result.
Fidelio, Op. 72, Act II: O Gott! O Gott!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc15bf33f02f5a120208a4e48f20c06f6c34f059a4d065040b90fb13eef6f36a. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005638 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005639 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4858d543f609b83062e4e7f58382b779233d0122afdea14d8bcc60e4f7b75bb6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005618 — a six-check JSON result.
Fidelio, Op. 72, Act I: Nun sprecht, wie ging's?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688d0b86bf7f5fa707a63c68ac97df54163abc43e88db78f24dbd613b295a558. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005619 — a six-check JSON result.
Fidelio, Op. 72, Act I: Ach, Vater, Vater eilt!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ca3047b101f34342129f4827a6561b00de481261c64b70cfd9b8b2c41443580. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005620 — a six-check JSON result.
Fidelio, Op. 72, Act I: Verweg'ner Alter!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8daff918641c13121862be318e549c4d2aee08cb47e645218d065a15969601f4. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005621 — a six-check JSON result.
Fidelio, Op. 72, Act I: Leb' wohl, du warmes Sonnenlicht
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100d6e34201dbff10206b2af70589fb36ea41ccb0d6b80e9462c796e037bcdd8. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422005622 — a six-check JSON result.
Le siège de Corinthe: Que vais-je devenir ?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200641fea84b3d6fc331c102e310d587dc7b61c389f48feb7a128713fb75762b. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103401 — a six-check JSON result.
Le siège de Corinthe: Du séjour de la lumière
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ad2073c5f3f4d5e455e0b89c7bf166abfa53b082df601142ffb6eed52d15b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103402 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103403 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103404 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103405 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98cfedc633984adb06f245d476f826f2fe7dc8a751fe615ad225327416657b6f. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103406 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103407 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103408 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc9d1dfa68b418bc025bd9a36314e840bd7130a243603df8129522accdf294f8. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103409 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103410 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103411 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103412 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103413 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103414 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103415 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8cb87a2d43447a2ff7e89e91a1561aafd8fdeee69ae08040b28677b766a91d8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103501 — a six-check JSON result.
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103502 — a six-check JSON result.
La Traviata, Act II: Avrem lieta di maschere la notte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc032281b2af6b56676d9c60c578a9a8c35d9fd3ea2502c94b0a08c8a115354db. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103511 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103503 — a six-check JSON result.
La Traviata, Act II: Noi siamo zingarelle
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ce7743cd799773689fd8d0d5e7780a516b7bbd998ba47f947fd2cbbe543a4f. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103512 — a six-check JSON result.
La Traviata, Act I: Che è ciò — Un dì felice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64d1d80e27c7941d822e3b0f9131601969f2eedf6c04159a9b4c71c7757ce86. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103504 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103513 — a six-check JSON result.
La Traviata, Act I: Si ridestra in ciel l'aurora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb3d4e613d1656fa77887b211aecef3acdbd229c1a8575257b7e6b144580cc6. Chain 2 (Bitcoin): anchored in block 960225 (2026-07-30T08:04:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103505 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6a7b5fcd48625e29df14d91ed7843f3f740122e0f7d2f8ecce3db3af882962. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103514 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103506 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f9129e247c11929f0876e9508c42fa7d83c8d18a9f688e360f501a5cc686e0e. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103515 — a six-check JSON result.
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103507 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103516 — a six-check JSON result.
La Traviata, Act II: Alfredo? — Pura siccome un angelo — Dite alla giovine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c07a6e3fee4054c584cc656899a4bb2aef27512db011bf5739f0b4d2a8799e2. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103508 — a six-check JSON result.
La Traviata, Act II: Oh, infamia orribile
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x253ec01b40ba216f4f967142a69e32b291cb30198c9360d1c417248590db6d19. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103517 — a six-check JSON result.
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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103509 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6929df558bb7282cd48d2ee7efb3027f9fd6d1b5d4ddfa1ca0756eacba48ac. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103518 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dd50823a43affb3e4720f1803456bb8bdcff69adf99c706f8b3a55ef0444861. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103519 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x191f7e8bbeae297cb6955fe0ea9655ef64366514f91e336e457930d0e7dddfef. Chain 2 (Bitcoin): anchored in block 960429 (2026-07-31T16:07:24Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103520 — a six-check JSON result.
La Traviata, Act III: Teneste la promessa — Attendo, attendo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabb11efa245094899a6d02152a41a7e20e186c8b3cc08ad53263f447a37018f. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103521 — a six-check JSON result.
La Traviata, Act III: Addio, del passato
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25f9cc340ea5b7576cbc9ecf70315c45bfb94f2c8b60902fa672b3c07e085838. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103522 — a six-check JSON result.
La Traviata, Act III: Baccanale: Largo al quadrupede sir della festa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f828793a18fa70b800a6309bde55970661d4d9612f0a56ae98515878a2e845. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103523 — a six-check JSON result.
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 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103524 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b9fbfcaeac06164f503d5ec8d48f4604d0687a25e1fe62c89ab513a58bc4f6. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLE422103525 — a six-check JSON result.