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 0x11bdffa9943ec0db896003d2d603c9d2a3435a5e004dc33f028478f8e0842bfe. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3258194b-290d-48c2-ace2-4a6daa62eee0.json and https://artists.proofprofile.net/proofs/artist/3258194b-290d-48c2-ace2-4a6daa62eee0.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 0xf34790ff0fcaf85f28176025d0d8c9a5f5720e19a8f98d4ead285f5983d37bfe. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USUM71008844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae8500af3967db0d5df4b02a1192fc3c586ae52aab70a6b213c17d612c872938. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USUM71008846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03aa4d96e73b32274d595fe919ea657cea47e672dc088bfb96d37dcac89978bf. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USUM71008841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1026f4e9aa1fecc7307b37936fe64112ebbb9121c982936f8d8a55191dc8e02e. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USUM71008839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40916610aa3d7c15118d934dd9f62c9ccc8cddfdf51a748b07e4d4052d32520. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/GBBLY1905196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb257c71b40888af6476ca30885213d6b454b52475aa60cc471128fa45dae3ae. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/GBBLY1905197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53a0abe97ec47cfb61f9a4279ea87a44a47e419022695107ec5f13b3f2769de. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:04:36Z), 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/GBBLY1905198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea959388f04306d846d5b185390b328ee547966e722c834733d99932b47c2793. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/GBBLY1905199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c71a886c0f4c2838f16317c03db9c96a3d18bd89ff3c4543b9cdda3cc8cc52. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBBLY1905200.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53c67fd174fea851397a0dc1cf6b89926f5bad2b4429ff4ec9c7d81b6897dbe. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/GBBLY1905201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd1775ceaca868e994553a9501f05a4debdf0c2402eadddecdbbf738ff377ac. Chain 2 (Bitcoin): anchored in block 958242 (2026-07-16T07:52:50Z), 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/GBBLY1905202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfcea2370c180a896957cca5ebaf9f306c7c28f1b45fe2e17fea9ee6c5e97834. 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/GBBLY1905204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f51a42f4695d5354100ba448fb01adc91f8791d417ae636f3dca5decd47ac4c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBBLY1905205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb438f7f2258571adfeb0d81d185e14efe4dd5d2e46671d0acd7107c1eeb357. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/GBBLY1905206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa62a0a82df9610d458aaf0aed77947ff09ea2af4feca271d6cd88e3d27330f6e. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBBLY1905207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ef4799a3ed08d88d14ddba4fbb0860be08fb466e6eabc1435465e040aed6c6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBBLY1905209.