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 0x182d908cd050715f78948ebceed21e01862258aec6e280ddc15efb19a4732557. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f30062eb-ecad-49b4-a2f1-73a5a22b4d3b.json and https://artists.proofprofile.net/proofs/artist/f30062eb-ecad-49b4-a2f1-73a5a22b4d3b.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 0x27fb8af4a133082ac3daa97ddf243ce8bf55cb95ffe72605f09e940b0652e908. 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/JPH202200055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9295b0ba8f5bddf0de53672df5b436b327ee7c80d95c8a96d669a27d6ee638f. 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/JPH202200064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3247a4b853e559042a29e2c318995f0dc34a0b94dd008418244b427d714192. 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/JPH202000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf1d7ef61feff2da3ea19d0e83c252f267e257b7ec39e9d7900fc0f84bf670fa. 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/JPH202000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca6ecfefd84648f9c1d5be1e0a62abc56ea10ab367076db4f0f9239e9c67e37. 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/JPH202000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd4b1d7ef4b60ebad3fde5be82a2868cb44c7c16ab5fee4f09a4ac75d588d277. 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/JPH202000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732ede90ec60c28f4e040f3ffd1ef48965143e125e0d9bf3b002e13d13f9224b. 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/JPH202000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e9cbbeedae2fca47f4a94be1b3c1bb49eaa684c7e463b55b1a1f1b928e63d21. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:44:12Z), 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/JPH201900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfe8f4af14a03061c69055570467991c72f2c918b3c44cff682e079478ab6db4. 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/JPH201900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd654d7b95c2062aad2c65de72a5670276cb62b2075f84239a32cb29ea8ac188a. 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/JPH201900025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8ba137c26c3843d7d38658e3570b3e1de26d6a454c5a96159c646537553fee. 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/JPH201900026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d47722dbcb9ff24bf0a33bc9733a4ee8205f1d94767d5f76ee229d22585bda2. 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/JPH201900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae54bc7dda4501d6fba9a02ead748f7258f8e902b21a0bc99948c1c92d9b0967. 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/JPH201900029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe13253647c5043c2bb542e5dbb4fb84d95d10383b6f24620da315ef8710169. 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/JPH201900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d15a6015fbd7013bae6586d2a28126c3c68eccfcc0c15a4ca7cb90a4180aea. 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/JPH201900033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49481c60c2b346582928d7935302ca3d30f97bf9963db619b2ccaf2cb7d524cb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/JPH201900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b09594c39d42b20ca51a58828e2e27bf03de8bf44a33aec23e8736a4be0aada. 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/JPF810812602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4254e81aa6d9793aaa9dfa548c44b773aa392be7d748d19cb876a58a8a1343c9. 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/JPF810812603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x250a5e709ebad216fecc35ecdcb695cac20e6b678cc6502886c4deee129367e8. 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/JPF810812605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b1b8058dde83e6210c642ed2e7474518a6a8c93b0b134892f819d782f51506. 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/JPF810812606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea97ac45357dbffcf300b7f80269e1f025d28859409018986f22a36c42d46a1b. 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/JPF810812607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f2af55df6ada860ee36c634e155293cb30ed7fbd4f4314edc9c48335d8ad46. 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/JPF810812609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458bcd4df354f44469ef00f6b287336a2483897f68902b86bef59e667f6a6192. 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/JPF810812610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc9777953ddd57b99789d75c4b21a0b3ccbf53e448d8fe21250cb888d6eada8b. 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/JPF810812612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4aa3b837ed626bb4a7ce91da8921d762464e4877f1b885b9e9120797fd1cf98. 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/JPJ901004880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7719be01f9343bf7d041858b1a31d48421a74cf4336becc892741ec108a0f45. 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/JPJ901004900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2cd60d98e025b3ebc8bdb91560fea1376bf95bfdfc29a13d8d6227d15144f0. 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/JPJ901004910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fceb0bc4518c8b34a6d088551e7873cf88b64b62167f74348c8131ea934a2b5. 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/JPJ901004980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dabd7512c983765fe187e566125828aa9595831b439938b1962f76b16d75bb0. 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/JPJ901004990.