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 0xb3c641d076c21aa5c6b78496e0192a6ac33f31a3e6727b44e0a7fb5d8d77b16b. 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/7616972e-8824-4333-b2ec-d6009e8cada3.json and https://artists.proofprofile.net/proofs/artist/7616972e-8824-4333-b2ec-d6009e8cada3.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 0x75707fafe9ae066cee79ededa7701299d2cfc8774b23fcc8ff1a323340dd9924. 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/JPWP02401444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78d08a0d521509d6284d1bcbafb173766a4aa05f06f4c9b6cb667f64057529cf. 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/JPWP02401265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fce5ac00f3ab8ecfb6c67ae925efb7402ca358a0b21c55bdc38b223c92e2fa. 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/JPWP02401128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c62ed59a272f15639fb4dc58180a6c48123abc9ae6c6a582dfb40aede0bf06. 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/JPWP02401052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58b17d3ec44292cc36d672729703d9a579ec44bf480d64e86d42e5d6471786f. 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/JPWP02400894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b8c9209918a90fb4f8da46f2d995644ca0e405bc4fe8f9c48cb9975daf4291. 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/JPWP02400650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x872936cbe429e591256eb8c9743479b26b17df726229a4137aad4d9254064244. 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/JPWP02400374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2309fc51111add79c4802356109c3af7184a50b638ba353526adfec7ebaff8. 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/JPS802353873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72ba8fc08cd69a21ee1de5ed0e0c752b4198f5be7bb7f9230b3c74157e81544. 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/JPS802353614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f7229752e1236e9e9175bc9eeacdc603286eec99fdb1e0fffd1fcb40fedb10. 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/JPS802352882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7eade768ea3707434715ba4ba418647f5852268a3216f23b695367b3e9b80f8. Chain 2 (Bitcoin): anchored in block 957039 (2026-07-07T12:58:18Z), 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/JPS802350926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac2e3a43d894b528a179de5fe9f18639e38b922d444721e9146c13326a5acdb. 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/JPS802351416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec53f87eea0facfc5f07672903876fd729ca10be5574732be22ddaeac1dd207. 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/JPS801965055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e51a4bcc12037588fd3860743f46c1ce3004d0994a0bfaf7dc46871646eb35. 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/JPS801964663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068bc33ac50217546ac574f9b6a9bf53939d247232aa042edf93021156d15318. 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/JPS802350542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb69d1f36dd1fa471e118a98868d9e11eba086daa8d0b047d16b8229be74d37. 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/JPS802352309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2613d97a5961d7313e64eeabc9d692cfd94d904c43ea484b83b8a262f96d5cf3. 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/JPS802351751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeac2e3a43d894b528a179de5fe9f18639e38b922d444721e9146c13326a5acdb. 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/JPS802351416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7eade768ea3707434715ba4ba418647f5852268a3216f23b695367b3e9b80f8. 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/JPS802350926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068bc33ac50217546ac574f9b6a9bf53939d247232aa042edf93021156d15318. 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/JPS802350542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x059fb9374fa2991e96828af7ef089ea8dc1793f63d6f02ab3a3256b05917ff59. 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/JPS802350168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec53f87eea0facfc5f07672903876fd729ca10be5574732be22ddaeac1dd207. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/JPS801965055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e51a4bcc12037588fd3860743f46c1ce3004d0994a0bfaf7dc46871646eb35. 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/JPS801964663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bfc5ad19e77425698a6e46a4e9fb00a01ce73fb61b2c2e87be1480e4f3cb75e. 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/JP92N2311507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x222aeab906adf89a2a99b5334398b27ad114191f8c20c91a836fb78c0d48151c. 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/TCJPS2247091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2bacc0300cfb58285d3e2e25d8df3ea02c9529c79f283624d99b68b8fe80412. 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/TCJPR2246392.