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 0xf320364a8a72434d06238026e91ae99014d71c3335bbfcffe86fb118af6e84a6. 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/69aa2d3c-4ebb-4908-86f2-7da976f04d57.json and https://artists.proofprofile.net/proofs/artist/69aa2d3c-4ebb-4908-86f2-7da976f04d57.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 0xe9789a698ab1982c1428fa948cbba04cc72f95da1adf5407b8b112417fb3fba1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR10S1765100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b989239268e9334bfb64ada8a559c067305d8005cd2d3875ac78b3d984ffff1. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FR10S1860490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea851de7b50112c208cfe5ef572f3efc9b6fa4e8d4b97cc19a1426eb2424e61f. 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/CZA231900284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578fe6e7e68ca1638660f0e14f470983360de3fbf93ba31724377c7371cb2068. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:43:05Z), 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/CZA231900285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad3709c83c5ed0573f6b6e9998f757850510a160f03d88bfca494af5a603c4e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/CZA231900287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ac7ea9dd4f991277ded9700a85ebf2e3fa169e08e7d97cd776bfd5000aefcc7. 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/CZA231900288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f479a2cdfa34f4a3fb513fdb77c2ec74a4e0795eb37c8228d90dd105842217. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:52:32Z), 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/CZA231900289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1503fb5cc57e6d4ecc797f78e7082cbb6315f294910aed9fd74840ba0b242799. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/CZA231900291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa07d59e51f210be081a38298c46a70e2a4f87815b62cba20738cde64dc2d866e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:41:24Z), 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/CZA231900292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b4df0f322909804ae3bb38c52a3e125de062021a23efc521db400d0be4a9521. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/CZA231900293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x433d92773008f0d0ca82552e697cf5c9c13b56ae66602f8a371a2726b9140052. 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/CZA232001039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b85c47452daa930c4544953c46bd74c1328a1e8473c5ee516c5d8b04a12bc35. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/CZA232001097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40e0d5d5a936086103d12f846b4b65867f62f29c9db50d7d97c9b8f9d73bb2b. 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/CZA232001098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d8b066fbbe92718a388f7a5da33242232c11ca8340330ecd99348ec81bb581. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/CZA232001099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922e208a63be65cfca0b6320bc64251e130b6f8f4fae4874f72d40e1d0cb6473. 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/CZA232001100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e51039e2403a79a26a17f1479b3d1fa58f632e1b03754874fc4197d3cf91a03. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/CZA232001102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e3e5b3340cd7f1e3750779a11047c9634ad229040e7cf393b0b86439037d7bc. 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/CZA232001019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cbc2a438315fc90ec2ce7031f9b700c5a56ead6ab5400434075fe6a2fe28c78. 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/CZA232000659.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0feb3f582e48f49d3254d3e197d921d0cad5286e6317f3612ffb74b919369908. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/CZA232100232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151924e83b3e9b50d49dcbb17e745fbbf80b71c26152eda91801937f4736f6c9. 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/CZA232100934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49c872747f08beb6f6295642a38045e5b7863b494589e2e372d42ee7bd0b6db. 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/CZA232101089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf42fbfeda3867dde90aacff0472df5dc7fa40ce495b61430d887e061ee6710. 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/SKA012300390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb5595e05e73ac8ff6aeb50b5aea830583b156d53bf0e0ee926915b0029cac3. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:47:49Z), 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/SKA012300391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76f06ff5c92f025b635247d0b188dad64550308bf1b3eb496f15f09aaaafa8b. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/CZA232200449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236e51e423a31ab5ab75619ec164f860b4c969744b39b3dc5b79aaddc61c21d8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/SKA012300397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a37335d1562729b310100480ad4a5b3fa110b813bc0c324352a1492a6af3e5. 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/SKA012300392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7969cf5da9c262c61bfdbeee2bae875a04eaa6654fe1154b6d1fcc104183e5a. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/SKA012300398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedd8afcfe5a6f2a146d4f3e121b404c5d731817062448393ae348f96853e8f10. 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/SKA012300280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1438fbb7c38acda3b45a9475f9470340024efd5660995626c5b9861e9ba879e2. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/SKA012300393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ce64bf3842552028cca8da646ee1dbdefd02fee4b4cd4555565b0dea36a843. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:47:42Z), 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/SKA012300394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d711539d6e04d0b71edd91e6f3b3869158a3af95563e30128761d0257006d12. 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/SKA012300300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb2a051251a82209a2551a7678ecfb020e57145a7cf7f585a144d6bf1291118. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/SKA012300283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecebbcbb2d246f1c4fcf6f4a56de286119fc8c8382c065c90e296c43c7447212. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/SKA012300291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bda2b53600876412ae06efa9845d04f218c33019ec6a5b972dfc970eaf236a. 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/SKA012300395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb851ffb7e804e0b7311db6ecaa69de2584e067af0aa92941d151b0e8ec2d07b3. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:45:15Z), 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/SKA012300396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6343a8497e1aaf9fc5bfe57162891e52334bbe1221e35b830dab15cb0888dd55. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:16:06Z), 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/SKA012300297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77b386b7c60db4199b718bdaebcfc779ca9d833155d47bd125fe64dfcc353a25. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:33:03Z), 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/CZUM72500977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704e46817e39cae43cbdc460574fc65bcd73b87eb487b964853c03a9683f54bb. 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/CZA232200853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704e46817e39cae43cbdc460574fc65bcd73b87eb487b964853c03a9683f54bb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CZA232200853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e21bc8d1f2ed57131626f546c095612dea7185aee25e7e1e010632c1dbb9c9. 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/QZN882241573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad0d4aafbdee4916d07f2b2bee8c4565bd38008d260951459210b003efb0bf7a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA232001251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x602c0eed37c5dc624589db3e57c1a40c2fd48df034dea8d928435e160f4ea5ce. 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/CZA232001330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x586d5dac7b283bdf944a7edfc0c8fa4a1694357b5aeba35e4e6530f4dd70c4fa. 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/SKBC82100118.
PO SVOJEJ CESTE (feat. Martin Matys & Boy Wonder)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0eb00d637d0233cab9ce953d1da492947c5edc88660204ee93c108e281aa7a5. 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/CZA231900575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dff6378375987efa8e6c45b53a76f82473c77a4c13ee58264996448fd9ef7e5. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/CZA232400489.
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