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 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 0x913f60efc45d8b977ceaafe2c4c68d801d50a507c77b741b14cd2676b21c630f. 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/19e4bd4c-a8fd-492d-9896-327c24ec6bac.json and https://artists.proofprofile.net/proofs/artist/19e4bd4c-a8fd-492d-9896-327c24ec6bac.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 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 0xe7090a84a0d62e15444cb37a6014a8426ce86b024b9e83bed1d1d02a6aaca347. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/TCAFJ2175612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf769bd0f41ce7cdea4002567e23237f9442de75553a109a4c673506fbc403d8f. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/TCAFJ2175460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888cf580850aec22846a86743e52b983aa9f5520348cd868d92eca71de8cf72e. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZS1Z1636006.
At The Beach Don't Mind The Salt Love The Rocks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211c1c62891368f6c49738e9ab95d04348e5a95cb02991ea68dd8fbd2b62a2cb. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZS1Z1636008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa062bfd965cddf2b1a322fdf248b8f22a7194ad05ea128bd9eac3c5e4292fd9. 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/QZS1Z1636010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedbcd251a51ff2d42022733861254bfcebd93c116c72c6e2aeae5902ef1396d9. 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/QZS1Z1636011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90aa860a6021774528e0d713182890763917ee1054be4d2a1de3be68492a60e. 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/QZS1Z1636012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8452fa369b927ea498afdb4f1f4551a663553f20bc8ad34b8efb63ec6962339. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/GBSMU3661935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6977f40ca3fae751ace553d35e8c6c0d4629c3907c7d18ba5088a349904032f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBSMU3661936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa88bcb4fd5dddcb4657a67547d1c9009efe5c68fa2e4b6245358a7395464f1b. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/GBSMU3661937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd1ce5890279fa3a2edf3b4929f5b38cb7d04239136f156e7aacef2c743c5fa. 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/GBSMU3875007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x587894c8318e224416217e5bfd41462d852dec18585637c6c153bdff83dc1a11. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/GBSMU3875011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4610b5506a22aca325b3a8cd0da952e5758dba0c7946561016e966c1206c17aa. 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/GBSMU3875013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48e598cab03a5bbb707fa79a76f571b59bf4f5e271fb082b9ca67e9950cbbb9. 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/GBSMU3875014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ac3add33ff0dc83bf0b6c2ade1b3f90bd7dd948e158546edcb999b3e7ab8c7b. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QZFYX1908894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a89dc3596446de5c0908d923fa9f59830e90ecf97b1ac83e62762a879989fb. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZFYX1972559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f668fa44d830edea4f977a9f897478d5e9780e828cbe0e5515b071d7d0d45a. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T05:56:21Z), 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/USCGH1990453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5387ae8dced52c18dab8ccbd0c3b31343ad52b0e2319d4bb01ce5796bd49a53. 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/TCAFL2197081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4b8a2ec34ec9bad79e696473285abbf606d2c23d422dc013f827bbad212b06. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCAFW2109842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50001123d9d95fb1c069d26e9d5af51fbd2b7cc0ce0ae802d92a4d85835ea685. 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/GX8KD2451873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4be67b364f3239c2883e1dff3164ce3f170cb7342f21a93aa47bbc9f7705c560. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/GX8KD2421547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31859ed019ee77408e7a8cfb968223b1138265f7467b4a874a1282b7121377b8. Chain 2 (Bitcoin): anchored in block 958349 (2026-07-17T02:28:59Z), 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/GX8KD2486398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9ae3807221b2505e2652a2aa3483c44a3a8292ccfbb43b4b9d4e708c67600e. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/GX8KD2412394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3bb73ba07d172e14d5e29238132a8983e6c0789998817f0d1c84832ff905e4. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/GX8KD2424847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d226a2d8df2eed1f1f72270bed0ffad7d19374572b3408c020695f3c5be4aa. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/GX8KD2442153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3532791df2764140613f7f9c9eda1e20afaedcce32c0704479950d0f6406d293. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/GX3HH2436379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b593bfec6232872ed0fec48c8f831bd61a6811f59f5be94017e944522d872f. 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/GX3HH2455454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551d29eef03223aa1b39158181cc0c1b2549bbc132fe0bb1a4a22cb997959c1c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX3HH2421430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4385f52dc0c469ab11379bea91ec93f598f671b1079a8ff111ea4d212cc776b0. 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/GX3HH2441149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65168c571bd57d27ee470bdabf9f0820e45826ef5ade23760a50dcb9d50507b1. 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/GX3HH2469301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85853b72d487777f5db2056c2d86c33326cc897c198ac5402c58c3c8fbc9b9fb. 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/GX3HH2476532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441ea3a7f4634fc7d5973c8d65ac0f5faea5d5f50f8628ad5ee7efed3596c58c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GX3HH2441376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd38dcfc6576648fe88db590e65671df1ff71f2ae5094bd8ae21b25fc0f9c7b7. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/GX5MY2484968.