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 0x3e90344dd736c9dfe5a87d427554352771e81b1e23924b0c68bcca22898f6930. 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/b472c523-8d67-44ae-9dfd-8f7a6a306abb.json and https://artists.proofprofile.net/proofs/artist/b472c523-8d67-44ae-9dfd-8f7a6a306abb.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 0xed09edd45d4e5cd64feb524d5147d5f08702097ac8fb82d5a4ccc7a76bf450e3. 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/JMA270801182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x478d340a73d6e670a4b8b0505acbfa42eac7dd63c4334dfe7f562343e43e9ab3. 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/JMA270801183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218672c68d8d0d44c05d5585b953cbc0bff5c317e21557d17770086a677003f8. 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/JMA270801187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc057d668caf18c9439b91238ec0091359ec6f0867f2d14f4f9fa7a205fc8ec1. 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/JMA270801188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494e232c001126b4ffa6f2fe192812037ce3d36575403128d393345b84a35df0. 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/JMA270801190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd15b5e5d9fb59b6be17db0039bc33205458929a4bb151bfc8fa8106e78c059e9. 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/JMA270801191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbdeeada12265a0d0cf85e592880a9ba0ba6571be867784704e13557c81565fd. 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/JMA270801194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8100e953b8c25ae369400760290eb3c87c6bb33debe137d32442456e9119b8. 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/JMA270801196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622fe10724be0709619c8a1725c28172b69638399d1a283ffded497b8ed54bcd. 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/JMA270801199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0b3b8a78c71087efa7cc7de42a25e31bdc8d00cd443275d6a4775cad11b379. 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/JMA270801200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673723164992db81fdbe752099c9c54a9aa22fcd6cb8343a00b6c62683109680. 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/JMA270801201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe34bd917f27afc7ee252c5cfd54e8cdc333074692fcb94e0deff24595e2b2863. 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/JMA270801205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda4911dc2ed2bd1c8d21826fd0fa64c7e2c420a997284f769bec17fbc61699c. 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/QZPYN2384571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a6b426daff8605eea2a4b77b9903d9f88e1f56af9a14c4976c77e1de7e0660. 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/QZPYN2384572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe0138a49e6028b301c52804bc30d3a5a5a95f034bec45e52451e6a6a8f6c95f. 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/QZPYN2384573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608a976d38dd82c9eb8fcc48e8af14816e93d74a799360c2de29acca034f3504. 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/QZPYN2384575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd20fc74153cfbec86b79169a5b77c80b187c3d5b24fa738db2b2c51af71f21fd. 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/QZPYN2384577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a4e720ac2ad2d5013b0bc59dfe59502d87ebde045db4f1f7b72706706e6c92. 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/QZPYN2384578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7af5b41f20ae6718baefce0b833e985e070ab7206a7de01d0a522bf63762053. 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/QZPYN2384580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cff6ff69585c1eaaf12c1d1390e21d4533f68bafd6feba44cac31b06cd845af. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QZPYN2384581.