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 0x0edde99083f6dbc7b87c01bd56563a32192214470f561fc33d71069ded15a4b6. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90b17f99-30b8-4545-8ce2-2bf15ba30dde.json and https://artists.proofprofile.net/proofs/artist/90b17f99-30b8-4545-8ce2-2bf15ba30dde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A ma table (feat. Le D) [Original version]
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 0xd70fed2a348bb47f1d3fe4c8bb2a64d550af9f755d072a3ef25b201490818e0f. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T12:45:56Z), 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/TCADS1845623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bc2add5e6eca56090e2e4c86b6aa00128e986691e89c77d1b3f9e74126d612. 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/CH6541890719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16322dd3381bb9eaed2f2754219bb8269d68d5b2f000aebcf8b033ccd071d545. 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/TCAEQ2064638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d117ff699a442d69badb6d8ef865accb6368aff1d2775871e7eb05b6ac7f2dc. 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/TCAET2048400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe541a2204139c09c0cf416e00564259f22c2639954717d3c951b8c61d6bceadb. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/TCAET2080130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3cacad44d974b224c51ea3fbeb929e8d5f44b3d084e9755141c613ce1104b62. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:50:04Z), 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/TCAFA2071830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f17b98971155cc8b496237dff33b2d1d935d5281948ce17689c2c2c3e6b18d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:33:35Z), 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/TCAFL2173690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdee46dfb049737cf5e73cc0507426ce70457b0c32fa026e9554ec0b6691e882c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAFN2105449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2acd9fd780cd7a0e947716be469f9e5927d77eaa2ebc9f9a052aac375f7d87. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAFP2138975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6750c86cb8385c2e67606153cca7bfaae4d9244092d36710773f48a46d2e54. 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/TCAFR2121176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb7feec4e5b203b3366c6aa120ff61cfdcd4e5f0bcafc647a2f81b9d7aa4644. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TCAFS2100614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab1078c578c563a6dfda65a8c57eae18410307f84a3790c567d70758c552d1f. 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/TCAFX2138877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc9760c28906fe0f0be49ea249ebe54d56a0227547f80e96f023f68b318c2e3. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/QZHN42208588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79ba97623d1025217f635b39cd00c5e3c816340f9f8038d779509cea97a61ac. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCAGD2292660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x167c3608f535d3ff7c61dc0549123f465dbce0a4f411a5eb6926b3e74e01d8ae. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TCAGL2265851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeafd1fdf134278f1e9c36d8753b3c7c6d3131a095858ea1ba7c7de88b27ba45. 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/QZTAU2227401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc0d1828db7421d9dc896c1876fdd9e702912c6536a7093993ccd3322a069cb3. 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/QZTAY2255725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0088546c019060c1ab97dbc2843977e65ea85c9904f06f32c8f7edfe4dec14f4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZTB62223262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e5ecd145096e682633189c65c8b291d15528dc155e48b0931ea8feb6d33c257. 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/TCAHI2327841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87ac89769195f8cec4484e3c88bb44ec4ed8c3537c783920983b8d86707b4a47. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:16:28Z), 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/QZWDD2354170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114bcc493fecdafc5df13c819f45678fcb889bf75b7c816c4ef228ef856de9a6. 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/QZWDE2372856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc94c99abb1216182712d8470504245200636e1ce88a3f571f4c378107dcdac. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/QZZEB2393772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9843dd074af5ca7b5a19c1c3dbf8e0e1e76bfd194ba1eed8f8afb49c620b3a37. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZWFP2363625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5adf9b2db3bfbd78b7211143dd569b66bbbac9a7a52fb83325cf34e9de6dbb75. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZFYZ2456921.
Jfais plaisir a la Zone Afro Club (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3141a1f28d2eb5801c25b5cdc5cf1933306384408eb69f171319d0b5640c8f0f. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/USLZJ2438336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c5e0ab85ed81684516fd9c9de9a742ead870149c61bdd0585f52ea65db9b3e5. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZTV32415469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b719d680e9247573a8c0fbe0d7a1424983b315d75af5a873ad1b7057108dae. 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/FR8GV2414340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31115fb3b01c4090febfa76e6bfcd970269ddd96b012d401a5f64afce107a85d. 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/FR8GV2414310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf76c1282e26c4d50349b9bdd76801f1dbfedcc7a327d48d1e1ab63a5ee5b90a. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FR8GV2414320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaccf670adbbfa09ea28a841ece6544d8eaf54c7994040b0582b716e862f2c720. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:58:36Z), 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/FR8GV2420500.