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 0x81ddb5d7bcf37ceea1b2f67d18028bf59240095977a637815171e96750986c36. 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/f752be68-5161-4dcd-a521-9fb1751fb9cc.json and https://artists.proofprofile.net/proofs/artist/f752be68-5161-4dcd-a521-9fb1751fb9cc.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 0xa41ac4a5da8da40c79ec3ec8b17ee95fd63b28f96fdd0dcf822ac54e777af6c9. 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/MYA112300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73cc7070e05d78256fc560451cd179c18ea73f73ae48354e61e7a98f5f7ac07. 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/MYA112300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c6e10ff811a11360734ad38fdf77895befb61598fc1bd4350a2ac65398c2c0. 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/MYA112300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d6fb48360c89ed1545897715020635cf152d983adeed9918d0f17e515cd1cd0. 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/MYBK11900137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ccea426f0694b4954e87b33fdc43c83f0a2418ccf4ea9aaad9a01f19ee10362. 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/MYBK11900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a5ca0ee1b269f3c8d6ebbf304bdfe0c183d2ea76a08866a3e71c81eb622145c. 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/MYBK11900147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d8ed4dd3326885778b3001bcf59b20746a725f49dab67ed6fe5413c0512f06. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/MYBK11900140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bca215344c9bff1dc52eb050eeffa83429d6c9cd2a234360a3bacae8a5e5cfc. 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/MYBK11900141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12d8413cb55c70214ca7f36081d0fbe318a32cb733b12167ea126832c00444b. 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/MYBK11900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fedd615fc8b5fa9402e7a9105edc685bdc1e290bc7567879f8a08c3961ee9c. 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/MYBK11900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a57d03f26bbbad2f1e3d7ccb900bedb0c53cda79222b4e93c1ab4baaf9bc26d. 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/MYBK11300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffd3bb913594c215a346bc51a9c08777d018e225a7a6962be5b7027d6c908d7a. 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/MYBK11900142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cfc4bb36fb4541391008db1983ee8467f3daafafcbbf16b7b294f40e8d6dfd. 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/MYBK11900135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506735de2196d9e1db0c5a2e5d90d18648dde14e3b85473261b33bbdda111398. 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/MYBK11900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff07cc3fd75555f96230aa53af53863cc2bed91a1456f7d5dae3acf4374c3dcd. 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/MYBK11300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2066db33fbe4ecc1767ad12d581bb59bc978d345d3f66ed09179cb3c1bbfbed. 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/MYBK11900143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41ac4a5da8da40c79ec3ec8b17ee95fd63b28f96fdd0dcf822ac54e777af6c9. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYA112300073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68c6e10ff811a11360734ad38fdf77895befb61598fc1bd4350a2ac65398c2c0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/MYA112300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d66c5a2fd3224816cfcbd2e84bc0f769b6782ebb002d122dc5c599f48e50876. 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/MYA112200387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ad671b35c7a56a08b0e8c13ea1e742f637dcce7687f98a74fb94395e698648. 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/MYA112200348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22e071e961a80798862bac422c053b881a65aae24d54cf701cf94c66a370dc79. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T16:37:46Z), 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/MYA112200261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c3761ffc080d828e168e19f43b846b7f9e44d83a6aeee84b36fdbf26cb1fc88. 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/FR10S2275330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fc135a7532e12eaf4123d153f23df664bd0ae5a6d760a004326b18f5a48e7c. 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/QZMHK2070911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35a6fc52e8842235241732c91b01ac70ab87be7534e9553e681e82aa1925aee0. 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/MYBK12000171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48684d24483942f2c69d7d3ac5832eae980d17df4493d37208ddb8d62124729d. 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/MYBK12000167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48684d24483942f2c69d7d3ac5832eae980d17df4493d37208ddb8d62124729d. 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/MYBK12000167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43edf4742084f8bcd60c03a3099452dcef2c3d1033ff1a357177b51f7723f5aa. 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/MYBK12000161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506735de2196d9e1db0c5a2e5d90d18648dde14e3b85473261b33bbdda111398. 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/MYBK11900136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cfc4bb36fb4541391008db1983ee8467f3daafafcbbf16b7b294f40e8d6dfd. 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/MYBK11900135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fedd615fc8b5fa9402e7a9105edc685bdc1e290bc7567879f8a08c3961ee9c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/MYBK11900132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf12d8413cb55c70214ca7f36081d0fbe318a32cb733b12167ea126832c00444b. 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/MYBK11900131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a57d03f26bbbad2f1e3d7ccb900bedb0c53cda79222b4e93c1ab4baaf9bc26d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYBK11300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2fcfd12f6445149ff3288235ab3b13b6289752ccf6923c3e34359d6e61ddde. 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/MYBK11300115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01d00bb6f558ce7a063e06ee912b3e62706a1438b359cd084aa9a4a3944b6935. 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/MYBK11300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff07cc3fd75555f96230aa53af53863cc2bed91a1456f7d5dae3acf4374c3dcd. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/MYBK11300111.