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 0xf4a6c0d162bc6f90dd66cdbd5f0f0e93d50ffc55993c2795a488314be2098986. 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/aea311dc-178f-4007-be60-a4152bc321ee.json and https://artists.proofprofile.net/proofs/artist/aea311dc-178f-4007-be60-a4152bc321ee.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 0x090a02e5326ca7f98ac044705045ebd8c20cf1816f979134db1fe28fd7493812. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QZZ8B2311308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69e0d0a426826b14b1856b9c726ea5d58d4644d06f2e185e44a56aa9a417373b. 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/QZZ8B2311318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a70533635343cddedb347bbc25f700cf9c21df5509f3e2e066b66e4aad9487. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/QZZ8B2311331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf03db4e58006eed656294badb349b6bed273502c4951427a939c6de673d19c85. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-17T03:42:23Z), 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/QZZ8B2363939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97bc37b3be6b00c55304133b00349aeaecdff59a7b1a78fc0e05dcc518b8edd5. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZZ8B2363943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a44ce3e6ad01de5d6bd66133b105d3ed64ff420a0a607a42344c03f93aff9cd. 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/QZZ8B2363949.
გალიაში გამოგზარდეს / ზესტაფონო გშორდები / წყალტუბოდან ქუთაისში
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7138357ddda66ae9578dc92f8634b085d1773c1077900776ac55be93155d52b8. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:27:45Z), 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/USLZJ2418386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c7e7b6637841fac223136b21e36bd51389e4fc3ba38a461cb44720ab1e762d. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/USLZJ2440808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbd751f196dc724ab98056c97fb09f5a27139abb72728554ac08afcc49cd64c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USLZJ2493972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d0f68c25f440badfed123b0beeab11f75bb49760596344f53fb653bde35238. 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/QZWV32437332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a3d91dde7d1dc9a7ac5317a5f6487b7e4cb655f27d9aca3fafb7f0591e5396. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZZEB2430133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa6a797d2d238dfb69af6f5de9b9cdce633e09ae595e4598f0396145b42e4566. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZ5FN2502288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b723971e5587fdd6ea5ca84b1f6fe6ca44f8dcc863effc4cabe6c0d9111b552. 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/QZ5FN2502339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b7be705bb1441730c96b162220666b4f95d90a20bfd7147237c4d9d40938d0. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T19:56:25Z), 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/QZ5FN2502570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6da26fca9b2bf6d2dd9a6095a68ca6737b613123bedf18284ae456d6ca1f30. 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/QZ5FN2502808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc052b7739295ace946cb269b3e1b83e364eb8663dbbcccaecdf02b05b69dcdfe. 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/QZ5FN2503015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45aaae71f2fc0d4e2d3c40534d252dec3e27b73dee02a91ef17cba1a5b4bb7b. 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/USLZJ2583861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf62ea1670be9928a6fc33eb1ea2a3b5a9b12b0d7ae4fb59532c1429eef34ee08. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/GBWUL2520837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6c1a8225fdc08451f6d2e54f79512dd3e68b6628bb6cdf9129d484746373f7. 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/GBWUL2520838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447223191c2ac27dfafb8efa59b183c7154de9651272f6a598066d27eef0bd6d. 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/GBWUL2520841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f90bd57ab2ab6c6c8e23aa17d7da67ad5a225ca8b91083bc17e79aad62c33cf. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T11:01:11Z), 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/GBWUL2520844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5959fe3f5523e44e9e509c2592cdb6e1d4121d7568b5eb346055938d4ba4ba9c. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZWV32517136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649d767c6f71b68b860edaceb8ac86d0a0f233320586d2b9976c99cdb073fe4b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/QZWV32593447.