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 0xcd9f5691c85ffa393943e4e97046e2afc9246feaf3dcd17a6868c89a258600ca. 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/396e6760-f3b0-4c07-81c5-52241703fe9d.json and https://artists.proofprofile.net/proofs/artist/396e6760-f3b0-4c07-81c5-52241703fe9d.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 0x2fdc85132a64be2046cfddf1d78187a330782cc8eaceb287e38ceaac349d872e. 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/TCACU1609623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3702b59c247c3f05ee5d4261cf9139c60bf644564690ec5f427dd762112e9e. 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/TCAIC2491668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f3829e9c183fd35a5cd90d8ea83547e1bc140cdb1adc53b920e4a67ec83b80c. 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/TCAIC2491551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90730e5fb60ce2d22654b344da7f03f2cd48c698c910d224686b3b32f718ef34. 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/TCAIC2491602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc66328e3e323175593a921ae885fbd5da01940340de299c3482d2f08ba3bd33f. 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/TCAIC2491593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98e67e3fcee8ebf9a6f0aabe0548d165b493bffa901d235de04e85539cf4f03e. 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/TCAIC2491641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a23164ca8a7a4020c89cfec937c30dbdbe872485217a5535d8b8918eb642820. 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/TCAIC2491559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf080789b5d8aba39a49b729d264e0e626c1b966de739809e78cfb560e581470. 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/TCAIC2491568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138d6641dd28d098b60f56ffef090435c3ae61f6d0ae8e128fcb9b00f748a276. 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/TCAIC2491579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed62ff5729f0d63b390df9d77e7b843946cb4f1f4b5efdc6c2826d435b781777. 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/TCAIC2491625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabaab01289a6ae19461700e9add087858aaad287276c4e83e9150392b51dcb81. 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/TCAIC2491465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe21a83d2a3f4eda65fac2b9ef155b4bcaa6bb7d755847e831493505d6d51dc4f. 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/TCAIC2491614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2905d4cb1c0795b9db473f6c63c00254f3873827a81e5eaa49d4a23a66b94c90. 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/TCAIC2491494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf696694d4254c2040506d986a8454972ad2289ba5eedfcdd7e4d4554cc255063. 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/TCAIC2491628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9b2814fee06e557ad2845df86ed4b7691c42939cef666f5bc8357a7bbd6544a. 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/TCAID2491517.
If All I Say Is Jesus (Green Worship Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422e1718cc4a55ec235ab3d7278de6e654d1b78a31a581efe9c341a846c63424. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZGXC2500354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899dd50ed5686f57522bb735bf7fe8d888b20efd07d64519b5d20d30527bf0eb. 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/QM6N22372717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce884239b78293e3ec33706e2a537957f4c3d94e619cebaafefd84f5fc450234. 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/TCAEW2015436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899dd50ed5686f57522bb735bf7fe8d888b20efd07d64519b5d20d30527bf0eb. 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/QM6N22372717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888b8f9858d510280956f35f1f92ea0aac473a84bced31576f17a5e224028c08. 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/TCAHY2479142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56cc18d6b0d7e0f837c4ef18ef02c95ee01947e94e83ab29c6ecc9d3d2008899. 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/TCAHY2479592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b46a82a50f618b6b4fc1cceb122346c0c3d0915b6097e7c9846f1343abbf34e. 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/TCAIB2469878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45e8a3d7888cf6ac3ba75de49d1abe976b6aa5fd2f31c8a9ea2d2252d582e521. 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/QZK6M2121655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c5884558ab5ebf8ff0e1d511bbc62b8778a13567ca6206e7f36c490730e52f. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/TCAFC2052271.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e4c24fdebc2410f3a14ccaa01a279737824f71d19beb764354dea2f3a215803. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/TCAHY2458071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17fe4a1c4b85ad589d4d76c1f17e8299934ace92b9c75b84b03d296050d2145. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USLZJ2232953.