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 0xf622255fe9db669d3c9c7326683f29e8a8c32a6638e7fdb6787e239838234188. 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/2b0bce68-2d89-43fb-a3fe-10c0df003434.json and https://artists.proofprofile.net/proofs/artist/2b0bce68-2d89-43fb-a3fe-10c0df003434.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 0x500c85bd6377b46d2c5526f1fae4db51180d22b10cf2d7fe7d6cc64c28c4b076. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZW9N2248371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x888edea59cf235ca5d18c0c083816950b2236ace3f02109f0c064d800aa31d78. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZW9N2248372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee034b17a42d34a10f66aac3a66a03b567038e8909429a7a8b134d089ad1cb03. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZW9N2248374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5497ec0745079fd5b05738f6868d5556b4dc56e6870a3d83918de72fd7b4ec0. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/QZW9N2211928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf86a03b014a92d1b859cfd4fbe272f67835242f0f7229716fef37cf71f5e0bb. 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/QZW9N2211929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf372a519861b3b4f442b4e6f62b3b6cf16b00fac81fc5c1dc3d1407e96408725. 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/QZNJX2243293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77344f17db7a6492df76418fcf97d877cf9278af37e3b00cdb06234b32ac04f5. 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/QZNJX2243294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ad0a27e885520cb0227dcb44b3795143c36e1c82529436809211c6b263ce334. 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/QZNJX2243295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48b538a65194bc340351da38add08e4bba25107d24c3430a970ec035ab53aacf. 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/QZNJX2243296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d47e3cac790af5482be24ad1739a192f08ae1092abfd300536ceb9d8c07c743. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZNJX2243298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748d3d2223c51378443567ed2c4b755dd48a748df3a1f39e923ee416daba399c. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/QZNJX2243299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66017e81f9acb0891f3a899f5741c9889155e630aa9c02b082339489b824b0ee. 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/SE6HN2467756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150a66607d3c53e4b0ec452bc1bfaa19022a095a6890b6d41d6ed75df9fda99f. 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/USHM82469931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95befb5fd4ec60c5a2a0662e917874edcbc2b4ecb1286387b6511aab5591a5fd. 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/QZNJV2494555.
Lay Back with Me (My Angel) [Angel Love Mixes]
Lay Back with Me (My Angel) [Angel Love Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcef4258ae46c8653d69596e3af8ba91109c413f83891b1af9e0bbfbe69d36e52. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USCGJ2465236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf099d3fb64b9f5c26632b54ea4abfa30ca8a29a1fe0ca22d1ced6e97131a3450. 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/QZMHN2481847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810df6f98679ee40e7bb57db312d2fe0717efa6d45dcdac22bf37da219868c92. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZ5FN2415472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x901051797d4e18a34049631523021f8cbf82f9d3bfe864c51545a0d9a8d9b355. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/QZFYY2402752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x839be8736a06453f5894fe5fdce7a643baf0192d8218e3299e3fdd766dab1ef2. 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/QZWFH2323275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bf7568364c391b85fca0671a48ae6d12d3f4940138d1b57b306510ce563a0d3. 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/QZWFH2323276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17a2bb94bde659d89a2706edba82059fbe8800e2937453674d46694b1919e99. 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/QZWFH2337429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb41e21c3ffc0daa7f2fc7e7e10c410974d81b95d1936e4bed070083b8e3ce9d3. 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/UKXN22389729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7af6efd1ca14e7e81e9903f5263171fa33d3dd467d1704e2540683a23d2dfe0. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZWV32368736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3e8fd3968bbda8fdab62c949ccea7e2b1c37a321c0192dc5f7e48ebd2bc2f2. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/QZTB92322659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d175c243f97ab84129a2b1f984ac9461e05274155fd4211f3c184b8405d637. 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/QZTB22323624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9bb06da6f1b8a33f0b439c90c0a0063425f07c612ea3430d10c20215aba34e. 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/UKXN22306234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8736b424c92b303b24cb872e423c8614d4f4d59fe3d92b8492b64867e7b7d3fd. 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/QZRP42360065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef1d9db11bab62fde3ee9da4001a3edc880dd2e1f7fb53b754c970458153154. 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/QZNJX2329201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0212289c2ad5c07fde46f25bd7272400de41eaa1c6bb7d1726ac0d130138f282. 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/QZNJX2329202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99049f938a76b035087540161e610fbd4370e7d5c2e5225b56822e3ef4fc8737. 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/QZNJX2329203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f39038a76aabfd92f22eaa20eae454609c79bbd7657257edeb2a88047fa1357. 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/QZNJX2329204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x532b990c76511860524ab1af3254d2776c097e4376340b6b87ba475170cea9e6. 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/QZNJX2329205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19337410f42e3be7a1312e946882a840da5fdacb872f62930f0ac99e59e8237e. 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/QZMHN2357007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e8ce4809b90829a7e39f541028851cc4389c78eaac2688bf1f01bea1efaaa9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/UKXN22327357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ce3cf8f539bfa438d9f8454cd9203ddad89cd1eff72048457d7b70e337b150. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/QZ5AB2366740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b3f49bc8e75d389b11e6e98406f8df4445dcf443511a880ca38c83b2cd8e7ce. 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/US7VG2360443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bd0d67406f6b184afe7e627b5a2c06c8daae4095a07769e461806d90cd0da84. 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/USL4R2247647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x014c70ffbb456a5d2648bfb0e31f9310e009da20bdf4f11d49d314f11b98812c. 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/QZW9N2252956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12215ce21a532787ccf6af0cef9c62ecfdd9f4676671e5cc7078399d46d6dbf0. 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/QZW9L2243110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394387d201a9802f622abb799c7d21acb50aa889c8249596818d0e4e5351174b. 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/IELOI2235382.