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 0x764ebac4f34cb3e50ce60dbd2c8b49d7a82dda0cc3ec2f42f470fb05b966b3dd. 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/a98213e7-a4ce-4d76-af8c-44defe41f89c.json and https://artists.proofprofile.net/proofs/artist/a98213e7-a4ce-4d76-af8c-44defe41f89c.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 0xea584e16bfa6942cc82a956c5266f98395fdc10a61f04a5fa20741e8bbe06635. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEZN82528257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a65af9d0863d1aee8f822f0f67220421c0ec5bdeae4e9bda2887c0f18a85920. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZN82528350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda4b3980c77c8a493a0da36228f85b9b17fb88b42980edd7c96839f0f235617. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/DEZN82528246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05c0ff270fe44150cf81280a228fb9f3433d625455fb683c15c46700232d1a97. 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/DEZN82528348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c486de87d95001dc69c0a85c0295241fe6e7f5978f23e73d3e3ea797828cdec. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/DEZN82528213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e73c6e0bfe1cf3d28319e03310d93268691c896998a074faba99d64376a66f2. 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/DEZN82528136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025a6ce72515eef9c5bd292724d45b467d9ef53a2bb5ea6bd1813ad8f2f57390. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:23:15Z), 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/DEZN82528123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a92cbc194c01d7bc543c347221e5b909c8107252cc808a3065ab5adff2e33b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEZN82528202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa608daae777335ec783b5c32d4d358d2c83aa1146a9b3fccaa0bfde9278c513c. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:24:43Z), 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/DEZN82528229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x054f1cf673e291809cc7f1fc59d2c23fdd499603f5220c3d2540ebab5d0ca3bc. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZN82528221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9742406610eb80b578bac922d05cae82f714cb9f41115cf03e9870099acbc28. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZN82528317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88648cc72637e5511e3426984464731a9b9559dcd17198f5b47fa1ac9b8775e1. 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/DEZN82528237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9d1c5c049cc770ffa0981196bec3fda869ec314502fdcca23ceaa7855402a6. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:34:45Z), 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/DEZN82528199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36eb1928d09b33f567fc553fa5b79f277ae6d95ad1a1c717269a5f1be5e33272. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEZN82528222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c658bb51086b50d8ee14d00c3cb1c29e461d871d1512b0505d8626458b7faa. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEZN82528336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd5d147aaaf9f12ce5fe0aeba95b0eff7af0741e055743d8f3d1de1a6d75d86. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEZN82528250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23388e1a7a0cee88f9e2e01ce4ef305b4f37f3359035258cc7e3977b9f0c19aa. 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/DEZN82528273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf02ee30d1e5a3f39b4cc985bcd32ce53d9459710d99952bfff0c97c2be1240f4. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:48:13Z), 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/DEZN82528182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0858f0fadeac9e0b0832e2b13985cfe213e62754e522e88641602fac0b4edb. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZN82528271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78dcd50dd1f340ca020d2020884c3983513803a903f8e9cdb7ca773c406f5480. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:30:00Z), 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/DEZN82528211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e374cb39d5d8367d3134bf8a6727b40f85664876e757248d24e10482678dfe. 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/DEZN82528152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b4715792d3c012475afe6b9eccbcb5099ef9a51bc83423b3e7cfbf3ecae92e. 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/DEZN82528621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45e52a872bcd8996d247349e2a3d86b43c94d6fae88b664d0e8a4b694fc19b5. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/DEZN82528239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6eeb0894e581c6c839bbcf7cad8d73e86bcb03cf9fffe353206b7cb91bbb4c8. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:44:38Z), 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/DEZN82528280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd501fa210127f95749d2f858b6a52f1bd8fabe85048093509fe3b0e20658a09c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZN82528622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3520620b93830021629d5ee9efe7e745fe7a73525103ed63e685bade13fbb4c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/DEZN82527947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2adfc34eb7d63fa3f7559cefc6246512a2caddcb09d400015ceecbb508d44e83. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEZN82528126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa59767e748538a9fec876c75f30da774488fb0b4a133738b046cf1559bb73363. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/DEZN82528209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd028b0b9f8c7d727b2bf443fa68ebcee4a0ffd23793b9c1d7860b44424f26ec. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/DEZN82528312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1bbe61f8cc746069ecaaf85e9361e86cacc1bd0e69f32750cca19c97048c002. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DEZN82528289.