1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa964bd6892726f2c29342c85fb590e7ded6d7f542007b62a2a69eea00b2a64e2. 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/2c29f9aa-2f58-4cd7-8003-92dbcf63b118.json and https://artists.proofprofile.net/proofs/artist/2c29f9aa-2f58-4cd7-8003-92dbcf63b118.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 → block OTSBitcoinBlock must exist at that height 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 0xc9d5dcb6b2d7a6e903f7259760d3993b70c3f70f080d3edf0ab95542bba32eab. 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/TCACA1433002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3462f114de7099810d7e0821513ce8eaa7d5725764200a80cd7335261f1b7d5. 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/TCACA1433011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b9acab3c0d682091e448c8e036037da7d957f226ac047f96d351e4b286c002. 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/TCACA1433027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46031ce72f489ed9d262a415c5ab67df20b011e49f6ea422f6cb1a0e1ec19a6b. 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/TCACA1433102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea3dd082199582e7f6893ad4512edb589b5b531edcd89ccf7a29b184306e762. 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/TCACA1433187.
Dark Eyes (Bonus) [Russian Ochi Chyrnye] [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8ea54248829b02adf1c17ea2f4fb60e3047976435968ee6790e84920d3413e. 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/TCACA1440526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379ec5266fd07995727dc0220d5af3ec9233345f48140f333821a5d4a134cf17. 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/TCACA1440629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c2d8525e10e22726a089c6bd7f4e3a4760c0fd0ab83e93a84952e366eab3eb. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCABK1275452.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ec5b25c53376cea326e67f9cac02bcceb137aae47977e48b5b751c21accab28. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABK1275454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5b7eaff16fa86ca4e358bd845ba8b4ccde883b40efaefebb6f609689b8a1d0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCABK1275456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e1f67d2c0d050aef9ca9ded7316e84d2621d9e758b10ece64f94b6e357cb988. 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/TCABK1275458.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0967f9ecdfb8d27c57abba4f8320eaee257d4ae241a5999824b29984c380e47. 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/TCABK1275460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e94183e8d02e34396b84411ad08fbebdc31e006b10d2d01d0a6c9282c9f73e. 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/TCABK1275463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x255b1bdeba81e2cb6fcc370f210a5625b9099fd22bfa4ab81885a4eee327a747. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TCABK1275466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdaae6983d28e835b5111f78e5b889f911f4100076791bac1e438571b1725ff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABK1275467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7573fa5bc92882621c25400e6b9705e3bf2a4714fcec1db645be75b600db5201. 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/TCABC1111489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb894c5e0a06370df650e8909bbf46a34dc4172095280ccd11951a2c7a2bf9e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABC1111493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55eadee4b23849ac943cf1a9d5eb619f733d3f4540cd2b9e5a4e0eb6a78693b7. 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/TCABC1111495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f6524f8da19e2e0e7407b8646e6a9ddf235a840480f67d09afed2b66f6782d. 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/TCABC1111496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d43957d2be1079eedd100fb1cb2482389b6b47b6c63c85f68ea171c60c8f24. 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/TCABC1111497.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd90c4dabf30c752147388bce7d47e8bf1d3a3127a8f7fa8b5b028cc44978178c. 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/TCABC1111498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a1c4475f8dd2ffab6375141d4085d1a4c168865fb56e84ebd22f8fda43e9d3. Chain 2 (Bitcoin): anchored in block 957304 (2026-07-09T12:19:34Z), 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/TCABC1111499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb10d6d4a89b4f0b07fe952bf999d93e99d80a31e5470e522245071a6fca1b9. 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/TCABC1109199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c03a59febd16166140a36ac220bf94b713b61d164d8ffa41c6cc2c772a663f9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABC1109204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326b4280b37ffea48de25bc317ae36067789624f3054130f1e6e97613e2f652f. 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/TCABC1109223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8415c18521807b9be15de08fc62ff849f246f9a21680f82df86404a9f3b9aa54. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/TCABC1109248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd76c404033702986abf47e522926436c1c17158d0cf5bca3dc63f9686d0a322. 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/TCABC1109285.
Dance of the Sugar Plum Fairy (From "the Nutcracker")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x094a23ea1d86299825cab2bb4b27547e35c5111b16b4ba43360f4111873de42f. 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/TCACS1663439.
Tetris Theme - Korobeiniki (Russian Folk) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdb122f22fbee518a7d46a7a09f6201aaa5dbd18bbb9f861326454c42d5b388. 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/TCABP1361606.