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 0xbac746ad20525bb98bd737c248c08f1738a7fb856f9e9220d81232b6c090b4fd. 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/0c24ace9-2f30-47e3-a1d8-485e950514f7.json and https://artists.proofprofile.net/proofs/artist/0c24ace9-2f30-47e3-a1d8-485e950514f7.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 0x9e54a143a9d72261940c0cdde5a87c5461057b97ea5b08b9d588063ec06227fc. 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/PL44J2006768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa4b40e9d30059bb60574f67e8c8774cf5c3ea66ff6794177ae7b5ae4cd250d. 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/PL44J2006769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a984c5836f6f8c372449629a93f1ccde1d77b26601b866970354a15d05fd83f. 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/PL44J2006773.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9900ebed2d8a5b2050e45919668e7d1908041a066a49c3b0032dffb7d8c0db7f. 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/PLF242209919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb70ca9f76c45087c682c01956ee1b257b22c48f0cae54749d78cc86117de0c70. 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/PLF242209886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd650b93083b0d71a898b4b4244546caa1ffd3b22bc314fbc9177fb44c1ae4cb9. 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/PL88L2100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd34c6cd1e5c1d085efd8616945294a07e34e48e9fad617b39174f1f077208a1. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/PLF242209926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1af93e7a82886d1e828b15e63e7ba5268639018a228c279ff164d50945b5b5. 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/PL88L2300247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92e2e9a8871f02cf57bc30fad834c28ad083f96b5d077a45c8da5f52d8e2bd2. Chain 2 (Bitcoin): anchored in block 957064 (2026-07-07T16:43:08Z), 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/PLF242209277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdde207ad0d37725d20995151f1492e884526ad08b0d21fbc9caadf3649715ee2. 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/PLF242211614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bdc06cd0dff73137e30c1a66d79b9b33986e61ef3cf133a4b8fe0855c78df5. 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/PLF242412212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a60a8b574f22a626f7df2edfdb940e61f2058deb7248647e9df6b049d8ccbc. 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/PLF242412213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d54095af418ec470aadb04993ad6091ae73884f450accc818340112a5f389f0. 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/PLF242412214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0119828db94ce4680a927bfc3e14fd4ea675d63de055413ebb5177ed4d67b39. 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/PLF242412215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6373d138ff1b1edf890d9069e1673a1e06cac4a08d34a426902710d8ce182a3. 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/PLF242412216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41906b5d8e843a6db2437078ecec6c73bfa65052c3f2aa4bf0b284c7b9bac331. 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/PLF242412107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564edb05fbea7e6656b5a8a99501e1ecf86486815e7ff35972b06034bb37f9cb. 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/PLF242412217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7646389ad502bca2c8ffd1c00e74176c29c8c30d3a61c140b91d2ab0e7addf20. 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/PLF242412221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0577613f96b815880fdde84e4d5d700bd88add154935bf46e37eab156aa641e. 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/PLF242107587.