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 0xd9ba38b8cff9b2017da6b0af784da06bf966e3c2c22eca4c0219357dc2092030. 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/2deed44a-5898-47d5-a38d-611d87201352.json and https://artists.proofprofile.net/proofs/artist/2deed44a-5898-47d5-a38d-611d87201352.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1b478ebd689f7fb45c0dd61e5ca0d5ba247d876efd5d1db4f1507e699617ffc. 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/US3Z40409209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1b9d9527c5238df887132dd5b2e3a452edf404e22587d0c160c5e0835ad6530. 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/US3Z40500121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9522d3d9707dad6c359f96bab35bdd2b88a5bdfb87d5162f3d3e12bcb846926c. 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/US3Z40409214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0120bf8714068d88e8857893ae5100755053dddcb170aa92f5d645c233d34067. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/TCAJU2568686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb244dac051573608543e832af415f49066fb1dfe47483b5954dc4af3ddac14aa. 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/TCAJT2568687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a7537acf9490de1d4609c0827d53423de099dc32777156f17a8461632a2279. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAJU2568688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7523e1bffb50d98520608fd6b0cd47525a07ec6ca4eaf5ed5de02c5690c20eec. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAJU2568690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39441d4db8049190bdc8d5a753e81c15b4345356efae67794b9b397f9f910815. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/TCAJT2568692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7025ab20c363a9c366faf9cb80f5c6449fe1ac74b24f23dc39eb269801498409. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAJU2568693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4369e6066a05835019a61a058600be70bce27fa9a83ab5e1bb5a25c936a4f9f1. 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/TCAJT2568696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e1543b7b178bcc870cbeedddb913ea23fa924d94b17a0ce6639c90cf05ae0b. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCAJT2568697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedd8e7ea15d0f12ba2c347e7a115ce4be08840bf2728fe555e93448d105e966. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/TCAJU2568698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b110b2165610c1f02c09c6d8f83001aa7f20c03719377e5c257ce6196cc465. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/TCAJT2568702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b2f3356c28fbd790925989106a15a8a43391b98686a28fecfe5a6a97d63465. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:36:54Z), 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/TCAJT2568704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44c68fd0f2a6ec25a337e9c2676d017d0816dcd7dcee40fb97c60c9eced9503. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/TCAJT2568706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad10d5c0aed3888cbcf794172e9379dd98b02908bc29c287ad24127a4022de3. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZWFP2547815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c0b5ad363c1c69b134a92b3b7116e13b58b53b635c09144812a3b45bd6f191. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:40:24Z), 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/QZWFP2547816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7855adc3a91febf0b949c772ec84216f6eb5f8d16c3dfe10613464b19477c4e2. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZWFP2547818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e1860c8033e4f256bddd1764b7d44e75098e01be1569201e33dc36b01b9dc15. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZWFP2547819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc85ec2e04e7b3bdf00785873eaa432fb050e4e85036e9222c89d482c62188db5. 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/QZWFP2547821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f3f78098780c2454cb970af0c47078526b53b2e9f7b7f45bfaa4f259429d13d. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:44:12Z), 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/QZWFP2547823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3d85c0d164f4456b1eaeb7e07b0db88c9724267b30576bf8d71b7a72d6c874b. 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/QZWFP2547824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797b900357a54c2df1410b0417c79d846b4429020daa8d32b61fb34635c96f14. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:28:00Z), 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/QZWFP2547826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6aa0a96ca7f236cf8a0251b00a5f3a0c417ad1b4d096611faf6b189dc28089b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:40:13Z), 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/QZWFP2547827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fc97717e3df40708f1ea71160e4667dab895071556708b083dc75b551b9dbd. 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/QZWFP2547828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a37cb975a80de9ce49141a0b0a83379a546629d1eb8d50cd6648fb1ce3870fd. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:28:59Z), 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/QZWFP2547830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3705a5aee8827a90a382f272479ec81ccc3f407136c41f6a103ba829e1bf16a. 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/QZWFP2547831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0191c8d90ae3791b2a3ef94c502463879b22170bdeb40865206308cfa6d3d6d6. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:34:12Z), 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/QZWFV2541305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac9310eef9e13bd83ac3fe8d27032d07b5267fd666708657e64ea7456289a78. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZWFV2541306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda10bd71bb6a066c7f536f7c0b4f97644f815ea6ecd7535b2604b2dae841662e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZWFV2541307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581b780f2d9823a90d1c1137ec6b7c0762afef611258ab3659cef4270d46deba. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZWFV2541308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbcd52a51c54a6f25bc61694cb961b245066b08269f6fcd9aadb6fcbac73482. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZWFV2541310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b0aa446f0786c9846c8bf3df13521750b099867afe28bc766d5db2935be390. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QZWFV2541311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fd4000fc614e6ff036b0215369e2798d3ca2872ec5cc851626c72ac10301df7. 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/QZWFV2541313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42cd137d849476552d6ff4143b2876248a8d6713a1f1b81158d4a8c38a3e6601. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZWFV2541314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x521ec463e3a755b352a7039da4620cd860d64dfeaa304e1b915c1bef065dd7a5. 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/QZWFV2541315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d63c541a1da3b06a1902acb0fc5cd2fe62a71cf85c1f3aeff091452e4efcef. 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/QZWFV2541316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0adb1d8168b746e89c620e7e184bdd3c9d746983b49e0d9ed6f1ced5f0961e9. 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/QZWFV2541317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a19572d6f2255b01e60b261a8744b451db544c8ecc909dab4355ede9752f178. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZWFV2541318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790854d67b2e33576f0f89a2c3ba8f3d3abdad2cdb7563ada1394ecf987fc39a. 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/TCAJZ2561640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cb581261e05fa756d1eec9f0a90711f150df696703ba2478efbe2e2b66139f. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCAJZ2561646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02888029aaf95498613cfa9ca3a08889189ea3ca7895115ac2674e2f73dd671b. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:01:21Z), 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/TCAJZ2561657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e896b621a5ddb2a868ac10b8a95c874ef57de50ff90b4851bab6b02af03ba15. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:45:45Z), 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/TCAJZ2561661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5c1a4aa5b020b90d628e7cc86faccdd8ad6f0fd8eb27f14975bf4034cd1958e. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCAJZ2561664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12e949b7f0d9a15d6a8a3a7922bcfd81b3665dace316ee8490e867fe1c92f69. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:04:08Z), 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/TCAJZ2561669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bc4797ccbd13b108f356431bcf0719a35ed605d5b0beecade7ac6fff779155c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCAJZ2561672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb228bc6cd9d828daac9e468b9483d70b3c8dea6c80e4d5a84fa5e25ad17a1234. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:10:22Z), 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/TCAJZ2561685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ad05b32568c38846db5ab4406f695042a03d97106a534091a9be740a45818a. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/TCAJZ2588368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f4814cf1c25bbdc463c8e68ff4a3706560eb13dcbe607e01420abdfdfaf22aa. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:18:52Z), 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/TCAKA2588372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfefa0d2d28042ac485742bc82da7786b97223d87bf1119597329947dd66b013. 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/TCAJZ2588376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5958039c26a5eea256999c0b28b880fb340ad3419e76b6f07281dca1aad66678. 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/TCAJZ2588380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe148c5a83d54012c6d5e1bd5fe4ce9a7c1f7c490560ea746fe2db67f8c1a02f2. 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/TCAJZ2588383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0b6df8524d6e1a845cff6fbb2a06f8eecba300f6b6e5015b362f42db707a29. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCAJZ2588386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76db3e79c5e9f9aecfbaae03c996fa6353539ea5028b5023ec3b75b8a69ac767. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCAKA2588396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe469a3f3834b221041106ef0dc358f87dfe6103fad325b7738e63a156348a22d. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:29:35Z), 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/TCAJZ2588400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b0d960683c7e81772031226eda809871b1173c59b5f3e45c6bdedd635116650. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAJZ2588412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb46c32d584b7b900e0591f17b82871d0ad81a5e4c1c442666cec1dc64b24b560. 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/TCAJZ2588422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8902e377164d0dad7a8c2e726b1d5d6dcff948fa152d215047a2a3e24658709d. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/QT65X2516570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5335c98eecc9558b02c9bb07e450166ac582f9d2bd45145ab6a0d339d2aad504. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QT65X2516581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67418c78b6b9821961e23caa2866542226e2055192120020c2b701c4f6161ee8. 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/QT65X2516584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd694522fd451a7183492dd279cdd2c423dcfc1bb32edd1d18d821591a9d5ba75. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QT65X2516589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb79bde79da4b72895c35ed9f2643139c1f61579d0d59fb1080caddca76760f. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:38:34Z), 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/QT65X2516601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3604e5a7064da76d113d86357e246c2cffb6db637b358e336998db62269a7594. 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/QT65X2516606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1161c66ca33c30d2aa64d88e50be3e55a9d006ca43f9f848b8d14452e5acc72. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:32:01Z), 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/QT65X2516613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa335f7f42e8cd308feca27f67ae708e13699286440210fa63d88850074c16a60. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:34:46Z), 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/QT65X2516615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1860a1b71b9486ea4e4b72c7b0790b98503ac7689057c50cb5330cca57dfccf7. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:09:43Z), 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/QT3F92536147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8dd4f24577f54f6872bf22193ead7285c0e7a99b47596a83cd9beb01a38d2d. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QT3F92536149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8371df63548d894348f7a11fa30206b1beaab25e69f18db29fc750deacdaceac. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QT3F92536150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5bca04d2ccf5abbe15134718d60a0b35d9917f50ecc5a923c1541085c13b647. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:11:13Z), 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/QT3F92536152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x175dfd2dd8d35ce842905504e91f318aaf83e8063b644ddca3cddab1b3ce0e12. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/QT3F92536154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c62527377d6b718625b70f944abe5f45a0b52c8f1956c1757a44e4ee97dffa3. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T20:03:27Z), 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/QT3F92536155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c120f8f349a416e3fecf025f3148b4d6628fa5078dd802faf1f442f77f07ea. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T08:03:50Z), 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/QT3F92536157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30a8b5def8885ca1863ae0ab0c75473ccbb3efd404b20fee6c4ead40eb594042. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:48:36Z), 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/QT3F92536158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615c3ae1fc3c14af48582deb3eeec799129b9ff501578c7171eec8a414f82f49. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:50:12Z), 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/QT3F92536160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f396d82f69acfe3b5513e964891c7605ee7c0240229c7cf3946badfb6bd659. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QT3F92536161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1044cdfd0888843170a0c1a2a37ffe324628a8b68be9ff2c40de06923b4fd800. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:08:20Z), 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/QT3F92536162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb548ef82533345960eec77b1b27fd6f985c146b95d0ef33e3b537a4f0e8f0e0. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/QT3F92536164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9851bdeaf615a08273054925050eb7dea9d8316c84a8715b7e116e889659f35. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:03:24Z), 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/QT3F92536165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ab14c12c2da72cc9c90222cb4406a93071095792e88b56765ba895f867e7d2. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:04:07Z), 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/QT3F92536166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x277781b6bde256e37af657a1955775d695e01d580db3ca3a8b8f6f4454a39067. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/US3Z40409208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe53acea66f0802b4f9c7aa32b59af53068d5aa27950c2e201e8dbb91e38c6af7. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/US3Z41800028.
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