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 0x098f971010b71d5d604b2d386bc767901b20894318974bd9a9df3169480616e2. 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/3fab9073-1418-429a-9d10-38febe3d2632.json and https://artists.proofprofile.net/proofs/artist/3fab9073-1418-429a-9d10-38febe3d2632.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 0x1afb52fa37c91e530a04f495cf6d7d8e40d001ea070c62eb62745f180dce6e0c. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:34:03Z), 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/MXF470808486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce271bcbdae0aea863703f020065291f1ac44d7a1949ad776b12aee94cc25768. 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/MXF470808489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fa657b7efdb3432333da921801228e6fc4db77631304c34460405a116613047. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/MXF470500638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7b89c8167cd507ebab336a879c5d10fc674841acfc7a44b497baac631e194f. Chain 2 (Bitcoin): anchored in block 957763 (2026-07-12T22:01:25Z), 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/MXF470500633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7144d0c2cb1f62224468cddda6050115c4b10e6c5564e30a08b9a2aac1b90615. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MXF470500632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5eb7aa6979122944007caab1e4cd55141d537abf13abce5c29ca3dbd38e2303. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/MXF470500731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bc955c3fc568512b3c4faa725be2fff25110f3c3aff24a97beebd97adde356. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/MXF470500689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x219275a37b4e037e27cc5aabd699d9cf43146ca12a989d53d5ea1ed37fa5bf50. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/MXF470500640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a6ad59fe5beaf563d0c2e2e2117743b8885aab779cb044e15a2da67b01247d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MXF470500644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f27b97f8d4ff8babcfc89c1581711ebb04bf577a5cf91fdc538efccd527bd9. Chain 2 (Bitcoin): anchored in block 957608 (2026-07-11T21:00:50Z), 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/MXF470500684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb516fb2344278593265ee6135f412ddd47fbc7952a39b53c46442ce41411099f. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:08:08Z), 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/MXF470500687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31bc955c3fc568512b3c4faa725be2fff25110f3c3aff24a97beebd97adde356. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MXF470500689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9937c83aa8b9a8f91039e865656852cee8b949ca97ef7fd6828fef93d075a518. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/MXF470500691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a4e3ddc10172e7d0a9927d93adde48ff1624b11795ab4214b85e8873c99eaa. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/MXF470500692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca3cb0e25934180e5840ae555a94beb05033686b2791d75b406573db4857e045. 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/MXF470500662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4861d10b92988280a00b136ba38046239a6d13522e9f91d2a806efe149f36798. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MXF470500732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a14d4dc80bf6b10726fd4acae44f6c9823c72680a3986f0d40ad8c1d3998b0. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/MXF470500730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a4e3ddc10172e7d0a9927d93adde48ff1624b11795ab4214b85e8873c99eaa. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/MXF470500692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5487de366317c3805a6e57ee093acdcb31edb17eed817be6751ecac459fdcc36. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/MXF470500618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa4e53e7b20440650415e25b8b1c66a3d82697f7b01f53871c80569e397e42ba. 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/MXF470500698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f12823a156cc1dde13917842f91e419ba2959d9cd7e3f8cbcdb4ea3df795f5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/MXF470500683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56328ab2e550b246e8f5ebdfe2bf699ebcb3a35d3314a42d5a3eddceff6e9430. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/MXF470500724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc064ee46e37a2f5f26298464242ec31c1f7f58f2b70ba05c743225ff4ee1db94. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:46:38Z), 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/MXF470500725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b6eb1c7925b5f44fb10f3ffee5b8833b554812d5c1297b5e4988302ac95286. 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/MXF470500641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5f12823a156cc1dde13917842f91e419ba2959d9cd7e3f8cbcdb4ea3df795f5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/MXF470500683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f27b97f8d4ff8babcfc89c1581711ebb04bf577a5cf91fdc538efccd527bd9. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/MXF470500684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c218dd0bd342e79c81f44cd65e9b4075331965671d0f188494caf3cad81d8ce. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:16:55Z), 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/MXF470500671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b6eb1c7925b5f44fb10f3ffee5b8833b554812d5c1297b5e4988302ac95286. 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/MXF470500641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe31dd23b731630075f8f200e36b69242640731913561cdfe755cd251003a3a8f. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/MXF470500685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae93831b1fc303dc1333af154b35858de437012d45f51137ab9f1a192b4ec43e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:57:38Z), 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/MXF470500635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d0ae55500b1ef7477f473d3cfa30ac92dade36d21d361b51e941309fc74ac9. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MXF470500650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4feb1cd240db4411a4ae35efc7d81364ba42d9a0ec68adf3266bd912dfedfb9. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:23:27Z), 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/MXF470500655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f522e22d2a4783c5927c6d19bf5fc6b48d46b610ee146fa4a4ef0d28929bd19. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/MXF470500654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7c84d039206494602e5480265eea954e84bb2b6706cc5d656979b558d0a91a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/MXF470500657.