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 0x378d245336271b5b8c970255225fb6194d6e6f932bc5a4381d086a119d506c0c. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d997444-8b92-4345-ba6c-6565560c21e8.json and https://artists.proofprofile.net/proofs/artist/3d997444-8b92-4345-ba6c-6565560c21e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Set the Controls for the Heart of the Sun
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 0x68f7e09afc73bb2fa5598894e8ccefe02f3ad141c66c7c2a3900cc0a32a3510e. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/USMBR1007797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ae155179c1b79dd801b2362e7473f180c4cf5e9bf2a02aa947a920f44a8ae67. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:20:20Z), 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/USMBR1007799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98725cb6fb3f1e4fc8737fd1881cf76f5f45c11b1198a5e8e89cd11ca2da9fe8. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/USMBR1007790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4737b806488676092544a8cb68f1bda77358e2372d2d3b275bb6e35cb90a474. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMBR1007793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67409470ffcd4c1c927eb3f3a331750b57f902ade3653b141ac9da3770213300. 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/USMBR1007794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d3a6b69879f8fe65b1324b9869370e2c57dbbfd1bf3c21d29557f886ab1d0b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USMBR1007795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63064424f1e4191548692ec64bd012c417c835043883319982f9c8173c81a1d9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USMBR2114664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f236857278b2ee38e3d0154e8486bfcca839850d39fa499aa1e65d8c31a7267. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/USMBR2114667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93d571a581f463d9a2800717610adc892188b224c459ce627d8e8ef68dd50af. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USMBR2114668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8e99db27cc9aecd87e730d81afbe34b69a8cac796cbf9bb36de8d3ffe14047d. 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/USMBR2114670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08b649968c34588f08664e4270ebad0faa9bb22f0e1db33ecddee0f81f0fd5e. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USMBR2114671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda12590fdfb0827543a9885d19884c310303e693eb5745a12a2dbed2daaac3ed. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:35:45Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMBR2114672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac071b376c5b86c86ac1a1e30a3e9d8b1aaa90e19bdf52eeb760138f7c22c5d5. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:37:40Z), 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/USMBR2114673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb84fa54a217d3b14c1521b69f406b1090f6d8157f6487382ace0f96f228e1e52. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMBR2114674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5244e66f8c29c9b81929794e16733b89dbe1ca83bb8cc2b5ab4e20caf2485b95. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMBR2215549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f2ba268b031e80cec93713c722556248caee5c1eca05473c19b7b171ae1f1d4. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USMBR2215550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637dfab15e41e6020fb9324340f40da9cd0f79a78939e62093694b531939ddf1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:04:48Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMBR2215553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cbccbb2f6a12dd4803d88c53f1dc1c6c7e5d57af0fe07be31598fcd609e90b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USMBR2215554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa925fc88ee8e1e31aa70040eea9bd6d9a8e697ad13009e5e6a2192320ebea3. 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/USMBR2215555.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5824d11e6029a23210933d054f193e00018ddb94f289cd280b300553589b080a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USMBR1208645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ddc06e184d6605622e3c842d0007b24500034f0125519cb48de4fbf781ebe5a. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:14:20Z), 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/USMBR1208647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x947ab29a93de4b08a0054ca4248baecf340e293a4f4a96e654e0e965de56f1ce. 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/USMBR1208649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x611da19fe5770c34c5eb9acdf77695cadb11959d0ab733c79a8856d54f6681aa. 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/USMBR1208650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ed13488d07d109351cef8b75a86931fbe299586a47346312dc71f85b4b1777. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USMBR1208651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdb955954941e4fff96d5cded8ef5cbae8989d3eed8e11e8963fae5df537ad19. 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/INH512028204.