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 0xe18cf3ad75b0b1daec9a0817d1fd067d3656d35729b0c00b9ff607f23d633616. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74fd607d-94dd-4bce-b4f3-c0e8717ad16b.json and https://artists.proofprofile.net/proofs/artist/74fd607d-94dd-4bce-b4f3-c0e8717ad16b.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 0x35a00011567a5f13bc2a74edac825ae042199d5c461dc4bdc8606d8c287ed652. 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/LVL151800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3347f705f86a6c22712a9cffccfca3bc3b4f0fb8dbf5473678f135e5cf2b0b. 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/LVL151800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b10b55a3ba7a419fa734a34b159ebfbc5466797c7de387e0c1ee9c1d10bdfd7. 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/LVL151800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5888cd0d435fc610936741dc10704c83d7796bd79c8674b4f2174e3481a75898. 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/LVL152106165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5888cd0d435fc610936741dc10704c83d7796bd79c8674b4f2174e3481a75898. 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/LVL152106165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb85031242e95b4359166264720aca49ecba992c21bafe1230f74011c9fcde2a. 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/LVL152106191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e716f29b720c77e73e4c52b59c4ca6ed1e41117d612f7ad5a7bb5238430aa8. 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/LVL152106190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295d882067ec8ba7df460214672a7a790e72312f47f58435124894ae2c441afd. 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/LVL152106196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62fdc544ecb75ace6bc359b839888cfd52f9c431474130f0c77fc2d9203e074c. 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/LVL151602110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e99d2043b788b7017d6fa9b7e049b7d14370b538ce58794cf3258feb95059f. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/LVL151602119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab930d87abc957f44a5f3ab7064b1343f23313304f5af67d1a54d0f19ee33b8c. 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/LVL151602125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2ed61d73ad53d848f0fc3a6db9cb31d0579cf6e4c2a40fa6e3de1f4ff70f80. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/LVL151602100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78eeb71744a376616dd416ced3170f9ff64e2a0921ddf08a151e2e873cbf2b13. 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/LVL151602111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f93d9d465776e25ca99252009906b23e620a72c4939d538bb6e370a48d7ae63. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/LVL151602102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800d80f308821946e1881cfc6428beeda43dd707b59420c7c62740d7d8e1d4e3. 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/LVL151602097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ba29889454f45666b5da4772fa7986d82102c526532d4a41a3b6c11423388a. 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/LVL151602123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e26330d2317438e22680ecece41bf7626e8a0a8594dd04bb0bb933bf8eb5ea. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/LVL151602116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f376716e0e97fd700a7b52756f9b1e8b50fcb4c5eff0762d92ea918abd48b0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/LVL151602099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x497668fa226bbc5e16f95cd38fc67bbe3a1148099f4960c7b45879030170a548. 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/LVL151602104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c92162a3dc7de5aed94f771280f22b449ba321987a7d53ef4e2443e8be3b7f. 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/LVL151602098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb5958aa4ae053395085c736da1bd804651491f19609215813685cb22adcdef. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/LVL151602112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23de553f609e7a336cd447bad3aa2f020eacff53fc23d65b676595d179a607bf. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:24:51Z), 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/LVL151602107.
Prelūdija sveces gaismai / Candle Light Prelude
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b6e8593578a88c5e5d7b7f4e4d09eb86f764c555adc4435a7d9f07b44a22448. 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/LVL151600393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25fe39e70ce4282a39e36b657c8af94b0e901e99fdce56ffd19947995fb1f1f2. 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/LVL151903291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9278f1b183048dc4c8ee761dfc668b9b901eea9360a828a6f353894a01fac5. 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/LVL151901381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313b5310b6a694361b1e4dcbdbd3dc1f81cc38cd157bf156b925e187cb23a133. 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/LVL152404233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f7cbfe9d741148c98bbfacc7903931db2110f1d691ce130e4f45921b561cf0. 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/LVL152500620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd799b06334a07d7c6b16b6ed2374422f07d94f87b1453b96ebf28bb677c6e8d. 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/LVL152500617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e69b67ad9ef8cd46f5af47c07ad2b956e6f7d572baa2d8513d05036eb09827. 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/LVL152500619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc062bba04e4149100714bd524d6684bde0cf7caf475de45bf6a18d9cfa712fc6. 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/QZK6J2049022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dc090ccf5e2f1bed52883fc65a026574228205e0ecd43f6a3f4ffa095b55a25. 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/QZK6J2049023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d9a4969ea33ad2e07a11aa9f8f082103bc639b275f0247fc100913363269104. 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/QZK6J2049025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9f42a66ec6abccf13918d4202d1a7fbc8bc84a72338a5179c4cfea135f4d3b. 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/QZK6J2049030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f96ec46d77feb3fb93cfaed6001f836727664351f79eed393b95ac9a16a64b1. 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/LVL151804581.