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 0x468752bb31b1d90e04e18b08f6ed1f908abb6f3c81dd7acdd55e17d4dd7cf7d9. 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/aee9055a-6ae6-406c-b868-71305c1eed7f.json and https://artists.proofprofile.net/proofs/artist/aee9055a-6ae6-406c-b868-71305c1eed7f.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 0x899568f169a8d80f29b57e974ed2bedafd413c2044d55e6d1864de16aa665491. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/BRRPG0300354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47a518d4b937cb0fb03f87981cdd360a35a6478c5db5e728ffbc3c060a9907f1. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/BRRPG0300356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11487b8f746d6ecaf437b1e49a9a9383cb5a367b9bc64b4fcbf2e180ead0369e. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:27:55Z), 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/BRRPG0300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33413a59c8865f13e227a94d35629e1f672da2fc35ded36dbb504a59cb25aa2e. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRPG0300359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a485e435f2338527a6a445e3e62eff465cbae8a0c6dd5c987c5e488ba22aee7. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BRRPG0300363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5ad9567d861f5e5938c9a13078cee61b050fbb5acc789c3e8e8b3151903897f. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BRRPG0300735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c0d0f58f06b2b82ccfeed39216d6c2f74e03cbe720cfaa9f746a8b81121173a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:49:56Z), 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/BRRPG0300738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec743fda8f068e5669b44e287ff74f931d1365852ed09c1b54c48d9f1a215bb. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRPG0300740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cedf2b60020b9cf79b31952b365c7309f68c73a8f7331d96348a326ec423cd. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BRRPG0800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc45acdb7eab725d6b23fdf251ab46ec9cba1616e09774f7d35412f0b6c7ee5c3. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRRPG0800017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0dcf7c3e367b08f8cf5c993641f6b56d40a33a50e96581992f4aa20aa4373c6. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRRPG0800018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc623d20fde694c52ffe8404d66a751ba4709416a70555f27c16416dc605151fa. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:10:51Z), 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/BRRPG0800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc12a25e4425c145ae9b328aab1fdfd8578362051680b90c3dde4102ca9401dd. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/BRRPG0800020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x830e710b00e5da6b57e08e0805dcd78a9e378713566ad9b4d488141bc874f1dd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BRRPG0800026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a40558d499462cc44a46858bde415d21f2746ddec96a5b6a33f3fe39174c53. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRPJ72303734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71be845b1a4a10c27c8fd5ea1fe51d2fcfabcaa04f2ac88d3234653b216b659f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:26:52Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRRPG1200160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb82397e3c30ea68b1a602ff1f9b91bdd0dcac388df2676a10f903d439f28ed. 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/BRRPG1200161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd8996de69333675e75716ecd3abaa72f24bcb8d0f19e864ee3a68965559f38. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/BRRPG1200069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x113ac6db88f79cb9a0513990374642cc7ecdfd482eb9ff8f5c23e7184b09353b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/BRPJ71901924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46d89911a9ebfb4e334ce6b3127e381678c083a6aa74976f0b269dbe1457da6b. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:10:49Z), 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/BRPJ71901928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f980466ef843be0f0d1ae661c70dd3ac654bbe3ea7f7406519dd38726f7215. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/BRPJ72103675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9636fd5738759234289ad228a5262303654832d9289e79a9225e141243fc3098. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BRPJ72103671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef530a2aea30e2f61e1a9cb5450c7ea9b011c2afc1f6879336f329c949826247. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/BRRPG1300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b7a61d7cb9c98fcc29871c31adabb9dbae607d1e5af43bafd30f698d5067c8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BRH9A1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff54a00db00009524442efc6552af777c8911b4f9219d203a4aa8dbcf9ffea29. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T03:25:40Z), 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/BRRPG1000089.