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 0xcdfaf5ce3d15ae2851898ce23e5223fb392d36220693ab40611ad73c27820f94. 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/2a9cbfd0-6dff-4862-9191-8b8f113e0900.json and https://artists.proofprofile.net/proofs/artist/2a9cbfd0-6dff-4862-9191-8b8f113e0900.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 0x36d4c06940ba90a1fe7c3ba43eb6528a3e29efa699fa7675cd8dd71c24f7662c. 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/BEKE52300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc77b4442a5d991a9377ba417198073a0bc8402458f3aacc086087f51a95bc8. 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/BEKE52100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bac0ebd7040b9db373f62bbcb988dc7bcef001a698b22c040ad2e8e7689353. 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/BEKE52100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7954c284f0533ec65dde66ba6c4c5df04cd62f6735bf7a965c3d6c844f4ba6b5. 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/BEKE52300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c545a811dae0208fb999ba2e09fbd219c1a0e18326f32d9f81020518edcde6. 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/BEKE52300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf485a70e1154254416086e4e90761717a56fa1a88afdf126f53bf7acd5628882. 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/BEKE52300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3780f714f3ffd228ee2fe90edbd1bc6c310e16b46b1dbc926b8bea38f476962c. 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/BEKE52300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa780d25df3c1b72fc95a73f7a8efbd6a6495220c17b0bc0d24534603acae0b1d. 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/BEKE52300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x664c8477b49e1210a4401a97c7b550e027ba6585cc242c019286899d913713e7. 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/BEKE52300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf54e5072b836731577c66497f15b1e2ee6ae905a8efe23c80dbca98c1412f27b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BEKE52300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a0e926a5ccad0879bb68bcaf827da8d6956acbbabc83b5e4006d8d58631d838. 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/BEKE52300025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bd5891ecf0642c303b86d300653f4aaf66a1905125ff032e5ef5ff8edc16fd. 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/BEKE52300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x194ba78b6ff9e3bee6d117c2bc591374084dd53006b7c8f4cc6e9f7c544b5237. 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/BEKE52400103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe65bf0897b71ea63f8be3d70f1938d8f0dea128ba858941425ac4f850913c04f. 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/BEKE52300061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63bd5891ecf0642c303b86d300653f4aaf66a1905125ff032e5ef5ff8edc16fd. 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/BEKE52300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36d4c06940ba90a1fe7c3ba43eb6528a3e29efa699fa7675cd8dd71c24f7662c. 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/BEKE52300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7954c284f0533ec65dde66ba6c4c5df04cd62f6735bf7a965c3d6c844f4ba6b5. 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/BEKE52300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c545a811dae0208fb999ba2e09fbd219c1a0e18326f32d9f81020518edcde6. 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/BEKE52300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bac0ebd7040b9db373f62bbcb988dc7bcef001a698b22c040ad2e8e7689353. 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/BEKE52100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fc77b4442a5d991a9377ba417198073a0bc8402458f3aacc086087f51a95bc8. 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/BEKE52100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bac0ebd7040b9db373f62bbcb988dc7bcef001a698b22c040ad2e8e7689353. 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/BEKE52100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8bac0ebd7040b9db373f62bbcb988dc7bcef001a698b22c040ad2e8e7689353. 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/BEKE52100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc25df8648a20903f0b46ccadc1315a5f3a8d6844591d78d6cf8fc8df400b0fc. 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/QZNWU2024473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6655081943531085c73d8e200a3177deb49b07e30c983bdddcf1973fcad601b1. 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/QZNWU2024474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6299c892280296f67f1fada8c6e9699aef0c007ea500000373c607e9dd8174ac. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZNWU2024476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2812e423e9a03267eff3d79b0e83f8d346c2e3189a39690dcfdd678d00406493. 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/QZNWU2024480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2a26b9c4ec79a49556750685ec7ce3f2bcca045590250adbf58ab468a69afe. 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/QZK6H2026304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffb9f78b60f273145a0f6ce2faba6e204462f96c9094112e52c1912a43fa637. 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/QZNWU2024483.