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 0x556c3c604f512a6e4411e4c5c1325cc05788511b82cce626a8c62620911b05bc. Chain 2 (Bitcoin): anchored in block 953592 (2026-06-14T05:36:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/05ae6a22-b673-4223-9101-a022930a516f.json and https://artists.proofprofile.net/proofs/artist/05ae6a22-b673-4223-9101-a022930a516f.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 0x5021e4dc449aab7c1f2fc925933a2d7383e89807b13f58279f144b50aab1c90a. 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/CACWV1955230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa878866b00968c31f76ed93bebf591136474b1fefc3218e7d89e93d3daff7098. 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/CACWV1955232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe024792c7433791b8f0213c6e3453531202f6f685c21738e4222fb6a629b9400. 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/CACWV1955235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddccc97a619dca3bd5a11f170b7797c69ec80ffa01ea6d9dc0579386278514a. 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/CACWV1955236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f554c7181fbcde2cd0df9e14dba302bdf003d53bf3be221852e9f58ab4e60. 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/CACWV1955237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd04e6ec3afd0f7057f2f9d720c6b8d4e68dd48e126261d5a9a07620330797ec. 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/CACWV1955238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ee2900d8e59af93a78482da99de4e92a0b14078e475ff7b0e6d5c84dd8ba15c. 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/CACWV1956425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe077b5331bd4d1158577694741278ba9157a9336ca479cb4d24a723bb224245a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CACWV1955285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1626b78c84c61f2a6dee2454688f327223a7e7f9bcb37d47cb8b78e3e4056a87. 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/CACWV1956428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ed694b1fa2c38c2d9cba9fe2f44d96251528e81a5b9398bf33502cf4525e64. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CACWV1956438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef7938c88516b19d146aa42d06f28ed702b4dce2db7d7cc5ee52b94ede43eeb. 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/CAHQJ1883703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53dc8c3103b6c7caa842161095479b43315c54e8154d7274eeb31f184187b21. 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/CAHQJ1883704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3b577f8e1d8176356da3b78f63cc01a4c6972aa6afaaa668520e60abbb8649. 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/CAHQJ1883705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732816e07503d37538eef30c58f0c85c48b553490fbb3938d8b80b1b454a041e. 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/CAHQJ1883708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc091a832f61cde6599d5370145da8e48e4b0b861fe13a07b14e1df63f4cd8017. 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/CAHQJ1883802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b500cce3c97c440097c9bd6f13cdf3c1df18c39a21f8c6309eac00c49a0f08c. 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/CAHQJ1883712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf999c765a673c3a649ae6c52001213f911bd9f442242ffd69fac67fd3faf4b47. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAHQJ1883709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124659a98233bdce61fba39b4bdc77a7a5d6a6147d9863ff2f7a7f5833357975. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAHQJ1883732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ec1fc25b980e825876b195a857828c8f95033e61c618f375e960cb1a1170fa. 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/CAHQJ1883734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9f225db2574600eccb6a0e49db7a577069f55158efa8a8380236f91182b8dc8. 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/CAHQJ1883737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c924ad4f763526f28606e90415107de3b6c83c254e3480efa28ee8a9217e165. 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/CAHQJ1883738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d61a3ebb4c1c915c55af7e84a0b6e0894a9ac17f186b361b6b134ffabc55ba1. 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/CAHQJ1883740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d96244aeb8dcb42657c9ba1c7dcb04b9f24eb246cefa80e4c5365d3114e6fbe. 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/CAHQJ1883746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf75101ec9e6a5e1419ad9f21108e95605dc2129bb1defee4424bcac7f5ddcfad. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CAHQJ1883754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d984d335a5237c0138d757d586426da1d81b455231f3271679675b502bd0c0. 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/CAHQJ1883787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a6c0f36f71ba6eb1b1a6367abf35174a6612eea8469303bb8265a071b82274. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAGOO1825238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c1193fe0bd9dd2b2923f0d812334cd53f26254c778073b500a6c1971162043. 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/CAGOO1823616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c847ddaad8d8a2a9cb98958a9bb7e99a3f1f056979b15c28f39cab6b2a51215. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CAGOO1823654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5f63c56410cf12cac1e55922b71bd67fd069e46db6958649db6612aa96d2f05. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAGOO1823621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7b6a3aaec677043a17c8499d71ff90f776c32c6c6bf264adbd99c19df612124. 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/CAGOO1823626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eb395875c74aadcf46943ced1c45ee5d188fa1c7e2c5ebd376bd0f04e72cd9. 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/CAGOO1823633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0bbe8b99fac2370fc7b551278fec20695d3f7f20dcf3c6e0bd2cf1929caf2f. 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/CAGOO1823619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c1c93b6d7ae055ce82d87a5570087398f933c3f7c22d91e38ac695b5443567e. 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/CAGOO1823683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93f81c18363e1e5029024678441166a796a059bd332a484221c4ac7ebf69544a. 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/CAGOO1825828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce29edb4794b8ec785b0822506099c1590c1364105ba738cf3ee0e5addfa5a8c. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CAGOO1823684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f84906a9a86ad30cb5417b5e858945ef4c397fc33071535c5c9b645a78f97f. 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/CAGOO1823686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3de724412856ef886a0bf014255a80d2f0b57ddb1084155740d5c3a43fe5a2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/CAGOO1823696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929107fe57c7c0bc265bbe2c020918064e7c0c9ccfc25ac6de32f1bf24752b9b. 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/CAENV1843062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0b0d9ba8fb768353cc30f46a27adc2ca88e8d9d1994e49e0a415ace13695293. 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/CAENV1843060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2b03d5073cff82c9cfb26db9c6d67110e844a01f9e3e65af1197ab38b820828. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CAENV1843061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9abc7195b0e2cbe6335acc29a1d7745e888dadd7f6de053ec5802c0f0e66813d. 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/CAENV1843054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7eccc436e4ff223357f7d95902251c3600e6c54de814030be271d35c46a38b. 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/CAENV1843059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x505dc550444a22395fda49bb15d5106d449c1626072a893cf4b18545a9794f52. 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/CAENV1843056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28d6c316a967a6e363c5d1f32eea8241c65a3cc68eeb7ee5f6e09f8504fa2cb. 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/CAENV1843420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cee392a7f54b141170ca756eb428b80090d452ceb51dcb4a2f51e2b9e750f37. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN31921733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d9da54b3735b44eebc5dff71bf00a6af1d29a512cbe2223d381927ecae0fb69. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHN31921735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fc112f34864ffd53fe3956ecb77429df20ffdc7c3be33c082fbc36d4e049fb. 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/QZHN31921746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5548b0d57bb7b9c17142fda57d2b17764a344f42c2412e61474b98f01cf2235f. 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/TCAEB1961669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1a96aa902e777f856655c0cb2acd40aaaa968a329e339575272a83eb1d3eeae. 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/TCAEB1961693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6117b1837d95f764bf05e22ff59b18138d9ef6e7a8d05a211372218a0ea2e53. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAEB1961729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ac47b76f6e8c3810dc9934f67f95852257835b92f2e53808490b017af01cb8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/TCAEB1961752.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x218aa1c920a76ba6d825c1907669420753ffe8f0e5eba5a1f38cfae5ada52156. 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/QM24S1919710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1865d27ad0dbbd0e993b900f1f9806a26a6f1c7938a00f4d639fea640e4d37d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QM24S1903075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb166b2213ac0a5be247841c7e6be737b24a6bb33bd818ec67bfa968c5f078f4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCAEM1983296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71395f207125949945249d5109eb13a0757940674fa4cd3fe19327ba694983c5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM24S1910279.