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 0x228b21a0d8d78dc4adb4a45b4c21c043fc2b85f95f620c4e8a9a9c39b717af6d. 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/c14455ec-11ba-4b53-a6b0-cc376a479742.json and https://artists.proofprofile.net/proofs/artist/c14455ec-11ba-4b53-a6b0-cc376a479742.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 0xf8c92a205ec06d8b855b34d1850e09dedfa38809abab4ca8a308994c3a0dbdd1. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZFZ52116463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148ed91e977ed027c404c81163143d8e2c3b5a1907a7bbdf7d40eaebec813a5f. 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/QZHN72100537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe60a81b8f1159871c78cfdb549689b8624d15b1b83eb6d9ef963bb3cad98d40. 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/QZHN72100538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67420c1ddce13520cdd31fd9e8fafe0f1117856bcc0fef87e6932faa10696bd1. 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/QZHN72100539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff484ac24a6c4e268226755d2285cdafecb3bd3232f3a7370944426463620e66. 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/QZHN72100540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2b524191cd3fe9d9bb25582698515215e6316867c064c02246f1a311b28292. 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/QZHN72100541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809fb8a74db89e3418ce5546b4a0d278c1f80bed1bd9c0d7bd19097206d8e72c. 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/QZHN72100542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3360e0d6239a6036b39c3b26f6c592b6db0be39b192b4009b95213bc08a2b2f0. 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/QZHN72100543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf04465c035fe26558bc97e07ebf1833b54328fabc9e7a9a86493272cfba9dd25. 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/QZHN72100544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9937b6d242820919f26f079ead9bf99ebf496e1dbc363f6184d861449596a2f6. Chain 2 (Bitcoin): anchored in block 958417 (2026-07-17T12:56:50Z), 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/QZHNA2261381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0785207e6363247429657d0038975ed14adeb98c9b3f171d33017e50f2feec86. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/QZPLS2286914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3c1943ed55d0024b1343dff4f3303be167fe432d8a09a2f2d9c1c327279200. 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/USUYG1546387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450a7f46d28a1da192c80c5211e0b2cfbdf6682bd1212ee9cce54d3c1f2a90a8. 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/USUYG1490139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b33b8f4da1bda3096cef5c9b43b485660409df25e31971cd7043c0e22d53a4a. 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/USUYG1490141.
Bandits (feat. GrindHard E & BabyFxce E)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb095142eb56e5baf67a477c4c15126c1bcb89f92112b8ed0cfd1ea3ef8d035. 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/USUYG1490145.
Kia Boyz (feat. Certified Trapper & Mariboy Mula Mar)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93eedcc0f41137b5bb7ed762aa4aab8723e7f5a1d201ee729f5edaabd9143771. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USUYG1490151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf287ee12e3951bbb8b723d52812572b9bcad71f4f9c51a14aab59c5c4f440ba3. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USUYG1490158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3edfcb5cc39b25d418f67249c7b60a8ed9dd5bc6e8c0fe205dab65730451ab62. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USUYG1521127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x593bbbf951d2f42ff6d50e19b4b8e8ad36d6506c8580208ecea68fee8acfccd1. 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/USUYG1540320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a508fabe5004d3f374da9e8b82952670d73bfde927970fde7932c50aead8554. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/USUYG1540323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18e0ca808c6200a883b3e08b18c869319d2351ce995ea6204bceeab386987a00. 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/USUYG1540324.
Wizards at the Waverly Place (feat. BabyTron)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf98359b816ffa5d4533b0bbbda9ab118022974dabf196a2c81052645a1e692c. 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/USUYG1540329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e3cd91a1defef88df2f81d19cf3b29723ca5001de74c9c60346bc3312d941d. 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/USUYG1540332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04e38f999e123c41165c594b7ec2801d03129cd3b2d5013e6cafb2ba54b4595d. 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/USUYG1563504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3ef03396c64ed0ae4d9565fbd317f6fedb11f59dfab50f57d512e61281ccb1b. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/USUYG1575574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1387b09ba9c14d0bc985b059830a23e8bacd3342081bcd4d4fa3ef9dae9a35a. 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/USUYG1575572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafcab1d2da52803cbb252c4d604240ad4a5c657f4c167e39c4cc22cff0dd800e. 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/USUYG1575581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02762802487c0d2e4b717ca56e4ebdf8ebd6b21b5c35bb3649fac9077a3500e1. 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/USUYG1721801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb5b7b4f513ddddd47b26f798b7df035bbba2b01b4197f268a7659fbd13dff77. 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/QZNWW2045961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff1ba039a40a12501a41077b773f986dd9ff61931f65e7bed24202b3a57d75a. 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/USUYG1515582.
D$M Cypher 2 (feat. $camaurion, JuSleaze, MJPAID, ScrumbleMan, Trdee, Fordio, J3, StanWill & Donnie Bands)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf832818a75ec32e066a40855637c630f4950a22469781a76416f10a88514186. 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/USUYG1448604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cf0a86ebfb255c5e77f4e6f5d3ebb1d36557ae99f1ad12b51d332c18999905. 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/USUYG1438875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b3923457bc56210ab124f928a127cb56a320a8cd153a62c91499913aa952e9. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUYG1431509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed311d3e5d26b384ef4579d48f4addd4dc466b31954a0dadc44177000ebd7e3f. 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/USUYG1724590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0450c55701e32d16f7350a3455cfa0dbdb6cf2241cf4f01abf5f60e6f9be43d8. 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/USUYG1544794.
Song 7 (feat. MJPAID, Fordio, Trdee, J1hunnit, ScrumbleMan & Prince Jefe)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f1080d9c64a0361cde4fb9e6cf668af4649bf175e5daa4ea780a12bc48c8b1. 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/USUYG1508473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43bbe855612977c141f28ccdf8e0dd192ea7239f64136b642d4e41c2439c7b52. 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/QZHN42228167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbcdf0e6ad73160db50027229021c5db1d4baa7ebaacd11517bb6249e79c56e9. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/QZK6K2145473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f728f718189deb5302f3d06e80d1f9503b2b24c469bc45299cb74275f1d6c71. 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/USUYG1565527.