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 0xa0e0ff5847a6a55a492cb3e2f76e0399109ef7a0794604e4969d5757cbb1493b. 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/da6b5346-eebb-4e7f-8b0c-8d2c92c70905.json and https://artists.proofprofile.net/proofs/artist/da6b5346-eebb-4e7f-8b0c-8d2c92c70905.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 0xc8e675942ecfd6bfd22b33088759a3b2d2a6e52d88006e46e8e574faa4d64a14. 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/UST8K1654610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5898b686f50a3880bfcc57f312b97ff50ad771f0247ba0a6b8809dbb2be44bd. 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/QZFZ31948817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9198f7ab4edb83eb11f54cf25b010667e64c63cae9402a3257a910fa49c15f50. 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/UST8K1654611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x622cdd283f5d1fb4d8975e8d7bb2ca4010e1639b6db00080bced9d7fbc94aa00. 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/UST8K1654612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ed0d0f8a460eb13f6eed262159a23a921a93a99262f2c430a5d2df660e76c9. 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/UST8K1654613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169c8141dd6382a955f873506fe69f3c53c248507492dfd6abcca4b284ffab27. 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/UST8K1654614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22874980aef216c4d074bf44de307f66f49603bf8d2775ad927d2bee2ffbad89. 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/UST8K1654615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88aca092ff0b33b894111f5886a8d94c991a9367c8e6f09317b3320612180186. 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/UST8K1654616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89f4e67a193af0664a598ed80a9084664e22d8a27f47d17c9f0e52cc062c389. 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/UST8K1654618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfbe51a56e783d98fdd6f704b08afe36fe30419185bc78556d29bd262de8fe59. 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/UST8K1654619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf502a09d251521e38d7431c41bb2b27df24735729eb0a9c8def790e3ed9fe53. 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/UST8K1654621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe59b4abfa1b1476b537a497789415c34e5376a0189536af91a760fcb70d2f376. 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/QZFYY1963774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca873e2271debb8cb40c8951cd27c52a2d3e6c3e5540b3c0daed69241f344d09. 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/UST8K1654623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9447477d367ab7aebf8e99f6ef16630f84ed215e8363c808281b4ef74f7c96. 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/UST8K1654624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x387af33c087698614ca9d23fac0b491392ffb4bff6e8095b1adf942ef9e2470b. 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/UST8K1654625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee15e246025169c021f357a18a8e3473df59eba0ddfd739ed606a5248c443aa7. 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/UST8K1654626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e95bc7272561481468532fecc6140efddce6661ffa77bdbf2fa4608012d458f. 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/UST8K1654627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ae90b81b1ef125008bf28d0d25a7243b83374013b94937b2e2be71f307921c. 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/UST8K1654628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab16f093349761c1432278901e9c7df1ce3bcefffb07f08adeb158ea782540b4. 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/UST8K1654629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02d04defa32b3364aad38e09f36f2898c13767aff4e0ee40fabdae0386552508. 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/UST8K1654630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x935d1316f32ee39aed95f3ca552e20b94af3aa95fbb1871b9bbc4851eab0cdac. 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/UST8K1654632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3693ae0c3331030deca351b12fb25ab116f63080621a9798ff92c5bf5adba65e. 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/UST8K1654633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11577828691855a8870690bf546b1674c5432b677d01b3c7fe7b4f1b1ab54c0f. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/UST8K1654634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44d61bd7e1eb99cd107933a2b4f9bbbcd6479713db67f03ea42132a85965fb9. 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/UST8K1654635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcebde16a79dbb0ebc6bdbb0473b256370e57b4211cf55457ca72e470f3607182. 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/UST8K1654636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5483e0136e5eb02c2a7a5b6a3ac6d323358d67365071e1b8083d4246b58166d7. 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/UST8K1654638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x145c30c1e1b1f49852b7d85cfda913e04691b117531b0486cd9db41b4e08db69. 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/UST8K1654639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb86352b21bd03d600c5047a235372e0704d5a9bace0f69b8973f5da8975c3d. 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/UST8K1654640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9a5b1ed9683839255302105f20cb2e2e514add17339ed0a78dd265c486d382. 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/UST8K1654641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7406702cd0fe5315b1d2268dbb43155228e24fe3ff30574add537b8e816ddd44. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/UST8K1654642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb651fb145d836a40ab5fa4a8eaa0b82f8ade3b1da531eb29605ad9945482bb53. 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/UST8K1654643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x209f712a91b53e51fbbbebba25dacb3b9d00175c8d5fac0b3ec53b5478289d3a. 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/UST8K1654644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d243adf4fd55e794ecd568595b04d8e793948ba8b5f870167a7fb471babf2c6. 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/UST8K1654645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bc85c2b5d0e347d47e0d1305fafbc5bccff2f3371c9d390bdc608527d0c2fe5. 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/UST8K1654646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bafe998c587000fb6b991d32e4ada55afa646b54ce763f4338bea783d72e454. 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/DGA0L2454304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x851f158777a263c96ac406a3253b56ccdb5016d841378592c390c0c1f0817492. 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/QM2PV1627836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a964925f2109e4cc19f995e70d13251845c26eff0ecf6ab9421378625298dbb. 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/TRA161700278.