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 0xd9ca497134faaf8c0a5fe760e657b4d009d92485434d02b65b35f6f8fbd26998. 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/0cbc2141-c28a-42c1-81a3-8b6c83cb35a2.json and https://artists.proofprofile.net/proofs/artist/0cbc2141-c28a-42c1-81a3-8b6c83cb35a2.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 0xc14a98bcdab7a83a9ede43795a01e634124cc3606d9c31a5eb526b0402f3804f. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QMAAK1967013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa3d632f5117719c0cba5f0a4b54c5e7c8b83c4ec0f9a1e053be50f3c221eac. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QMAAK1967019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17ee3632a70cd26f0b078bdf75a8c7db995a6b070e29a181205f1b8371a55e5. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QMAAK1967022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1985fa304ea4ce8d07b7bc7ab6ac7068083eee69d005a608a5462f46932b8d8c. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/USCGJ2290950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7187b7028455320bca98dfc5f0bddcbb7e5bb0022fa6d23b6ae30a078745437. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USCGJ2290951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa294ae0244f5b9b5c82e94b5b240c5afe6f279c0dfdd4cc8ea3e04ccfea5f9ce. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/USCGJ2290952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e54c21b6cde91b035eeb01bc2f9573cb3ea91a5b0a1290627635817306daeb. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/USKRS2475128.
Kentucky Night - Live At Mississippi Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6876ca891f2ef91e20934dc19c1f1288b8ce8a15b681eb3eca351df63cfdb19c. 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/USVJJ2526201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe5c058c0987d28d79155b76c292f551e378b06f196a449b749590ff83267974. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:53:59Z), 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/USVJJ2526202.
Married To The Ground - Live At Mississippi Studios
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42fa5cd00a9ca9a1468259a9e1018f321e8c917a3c8f22e5f0d037070659cd0. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USVJJ2526203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd62a1d2e05393a3dcefb3ac3ea79bb65b74da23f0659c31b561569aa04ca5245. 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/USKRS2379501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46e8d6b0991d66b918cdb8c7822301d54f3e1e7b593adc48f98b75845634f9fe. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USKRS2301601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f0a414cad692c0576b7a6d054e7c08f4a237ffc82437e2c74b5efe0c41d2a3. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USKRS2481701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8ba3ab988a7ab5f2e10d1b2fac38f4078860d4eb7358d64d87117fbcb461e9. 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/USKRS2481601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70def13645d3df6050fa699d67d4e1ed96fe05e06ac58ef665d088395a0e991c. 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/USKRS2380701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5508f28c39ae019ed8fde7ebdad848fa3e816724ac9b553cc4f9cb55d3b64e. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T04:43:51Z), 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/USKRS2481801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe18ff0c8cf46bf43306954bb12421df6b7f3032dfcdd1a8a9580e173991c9440. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USKRS2482801.
TV - Medusa's Throw Back Chicago House Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86354924ffe182957653e9a64228fa7ad83dcb0b0036006f4d7c078dc47a06f1. 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/USKRS2484701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x632cf62e62fc8c05b73c690a36d39afb8788871b1bbe0ab3b314a5a6a7b1e0f0. 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/USKRS2484702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb7223994fe575e9785ca3d5991a33788eee8e17e4657211999eb8daae128ba. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:34:42Z), 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/USVJJ2526501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb7223994fe575e9785ca3d5991a33788eee8e17e4657211999eb8daae128ba. Chain 2 (Bitcoin): anchored in block 957776 (2026-07-13T00:05:10Z), 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/USVJJ2526501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b3a3657cf8ab466f3934a3944e05504ef243703f578e6c3eeff539882afaf1. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/USVJJ2526507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302759494576f927d2509e3b29d22bbea97612a9bfe6ebba53fb734204ac3aa9. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USVJJ2526503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4934f38f6a17f4e80f82f3b1ae60c126c378bac1d1a56a028432d717cff59402. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USVJJ2526504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b3a3657cf8ab466f3934a3944e05504ef243703f578e6c3eeff539882afaf1. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:08:58Z), 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/USVJJ2526507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb7223994fe575e9785ca3d5991a33788eee8e17e4657211999eb8daae128ba. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USVJJ2526501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302759494576f927d2509e3b29d22bbea97612a9bfe6ebba53fb734204ac3aa9. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:06:25Z), 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/USVJJ2526503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4934f38f6a17f4e80f82f3b1ae60c126c378bac1d1a56a028432d717cff59402. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:38:06Z), 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/USVJJ2526504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec8664be8495b8be9eaa5257c022bc49a142f98dfc1857546074b2730b4b45a. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:47:00Z), 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/USVJJ2526505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025cfbf9dcf15cc5aed48f644f4afbd30f71399959ac13935010e941a71adf8d. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:38:25Z), 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/USVJJ2526506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3b3a3657cf8ab466f3934a3944e05504ef243703f578e6c3eeff539882afaf1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/USVJJ2526507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ed0150e1e1e0d407f00a776fc583541d53842173dd7b111921e191c6961ae5. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USVJJ2526509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74ab84461e1f5a05af92832c9314518ba9ff131a82bbb9c2969bfc9c71e7171a. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:28:49Z), 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/USVJJ2526510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5cdf477f8d39cdb7fd40d0c6654919abb7c66edbcbb70680224c3cab8bc3d5. 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/USVJJ2526511.