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 0xf09993faf4f100c5c9f7d58772ce3019cdfecb2b7eadd18ecba879f5b004ff0a. 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/1f29718d-ba8d-422e-8c17-cf1b7f020207.json and https://artists.proofprofile.net/proofs/artist/1f29718d-ba8d-422e-8c17-cf1b7f020207.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 0x23e30623fa4819178d8c1e480e2716f4a247889d314ddbf5a39fa9841340134c. 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/AUIM11200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a6309432343711d6a010b6eab48fc4996b8cbfe414e14387e4ada10c338517. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:42:03Z), 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/AUIM11200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ba49f4e21bead0fb9915dc82870ea5eafc238902415846bf045a3a9ca1c9350. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:30:48Z), 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/AUIM11200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e211d0065640cf2b30ca73d5046c3498d897a40d7fb8bdc91349af2c95a940. 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/AUIM11200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57ca03d5e1c62943b93ab2eb055034275fa1393ba7e67afab7679f9e07d11994. 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/AUIM11200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x067065cf048509ac7ed3490355f5da6d65f88f641974e9c91a9112fe525f9e34. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/AUIM11200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x117ce5c1892ac878a16537e505bd0a568042b81e92b9342f0c9495a1cba99edd. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUIM11200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x881117726c28ea135b6fed0601de1008df1a4818c87d7503e8f575bfc8603b90. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:27Z), 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/AUIM11200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275afaf3de7057383753892921c6912e4ed69466ed4184a26e299ce172db56b3. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/AUIM11200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x162636d6d7d2bcd1e029e8c83c49270969272c4307e37030de83049bcbbfc3c6. Chain 2 (Bitcoin): anchored in block 957702 (2026-07-12T12:25:41Z), 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/AUIM11200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86c5e422ab843c764710f4bee0b785611aa7f0589e47b4cc7bbc1efaabef3d6b. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/AUIM11200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc626d26b6eeb06aeadb9d4310b5709bb31d1ed90300f226a3819d0224b870f9e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:04:53Z), 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/AUIM11200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e26c28264b6c4d8bbcdcbe6878af08b62401b1a446ee8d62c28d96fe1a3fdd6. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/AUIM11200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x284caeb797639457a93d670bb9d286570fdb1298160cadea42d67688ef15a652. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/AUQT21500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ffe936cbee028ecf23a081c00808253baeac1df012bd903bd0315ff9b53887e. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/AUQT21500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe971b186173b304c3bf5086c7b4b16fdb0ecbe5912893cbada9a53e381069256. 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/AUQT21500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9094a675194b5105cb0a1a598efa83ddd3000bb9ebafcb57796b8cd6b62913e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/AUQT21500018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2f0d2af29250f973d2eccc46787cbabd5bab3b4275c03308645871fc600fd8. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/AUQT21800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6beede18a5feda99b557f28a0b0f5fe79b30d48529da32ee1e57ec6d283ada0. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/AUQT22000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94fa83f0e47f3a188dc22f84d13a525d9610ac9a9dc39957a599b82f7db33d8b. 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/AUQT22100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2cc68897682022b64713b2de6958862c3f54d617c838745460e2f5af5939cb. 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/AUQT21900068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc22a64427028d2c33a1f844c2218f885cd4ec09b82eccc03f52304805acda6. 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/AUQT21900037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1c912ecd441273cb1eb705165bfa48de86ac3b2a54bbf77cc1f2f8d1521eb7. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/AUQT21900011.