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 0x1ffb86f775c9a6c887759f537d02893ed0621f95d6136ff96cf7d4134b879aae. 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/74d5d251-4229-4968-a566-17ff8d7b2645.json and https://artists.proofprofile.net/proofs/artist/74d5d251-4229-4968-a566-17ff8d7b2645.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 0x989795d8c8413d809fe003ebe0d04e50c9901f6f438287d1b9f522ce7e08658a. 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/QZHN61974370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a43e30f649bee0756828f28a961d8be1c218e014bd68dc6b9eaae71c11ae1b. 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/QZHN61974371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60e286201b15ad35e737e303ac706638359927a03a00b29026d3f46158a737bf. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZHN61974374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5452d82fd420085c495e912c927d59928bcb7e3f968b554811ebdbd632fa4f31. 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/QZHN61974379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2194646b5721ffe487d591cc54b18a62264f24fc8b58df6a17a3700c09178f. 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/QZFZ32098899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefe3bdbc3e5635422e4a024312eec0c811df246ca01055d63f15c0c3ecebdd2f. 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/QZFZ32098905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x538a5ea3e8321f175e9b59a8684a1d56406a319e2eded5822cb17792f6d16257. 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/QZHN92009097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x688d4830de107c36f789313db2587553f5b9e792bd47bbcb4a792eba8cd92c8d. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN92009098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90cf597216739e5fc4f605e0c3d7a9eb8d6367ab6f24b28d773bef0fcd2b2d8b. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZHN92009099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886d79abc2603114b76f19c05fd74fd3d46d371a152d833321ddae8a4b4d4870. 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/QZHN92009103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5fb854721164f96ecdf51de695dc1e4ed962bfb26dcc6682250ac2bd616826e. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T05:11:00Z), 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/QZK6Q2011101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccfa22c5e56b8852667eb04b9d82943e3e66dd37a9bd6a81efe284b0bbec0e3. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/QZK6Q2011102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f29c75dc37344d532fcb5896af2e4fc5c2dae0a84c71753e2749c1724384949. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:45:59Z), 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/QZK6Q2011105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcbdd5de963dfbaa362a522ba93a8f7dabadeecc9ce0f4a91ac8c868ec056853. 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/QZK6Q2011108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90028a59684e72b4f76b86ad69ae0433e069e3d61d51aa3d60848cdb56ef8cc0. Chain 2 (Bitcoin): anchored in block 957874 (2026-07-13T15:43:57Z), 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/QZK6Q2013622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19570607b4d6d85b734985d6dc6bbedb0662f048f4a184ca0a3d26a9695c874. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZK6Q2011114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20a5c30c9f3c68e55ad1053c7df683a6df03976fcf6bc4e4d8050dcfb5284aa. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:53:51Z), 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/QZK6H2028700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71cfe24ebf82c693e3d647328398a4a9cc69bb06a29a622b54af403e94bf3579. 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/QZK6G2086991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe71c255235a05596e487d91e1ec1fe7e9f7df16546f89985ad674ed2b4c356c. 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/QZMER2005703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5eca1a053db51d0177fee352f7610352c4c9c9d061205b73a736161232d9982. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/QZPLR2025226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b26c781171d2ea65b97fa2732dd5c5b6980f1c8f0c88dbc094a6aba8cbb3bb7. 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/QZPLR2025232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92566ce1e2f19c9dc28478deca037904fc72886c9a27d72acc32eb18ff038531. 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/QZHNC2105710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296727d1538a7f4feb2b8490d5b4fc2fb72588bdd495323bc4d6c59f16d1407b. 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/QZHNC2105719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdadb97590328778d60c570e20be54ff32b3f8a6d91a0884e235e6b7f125b29a0. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6G2164435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c376166250f68875c253bce108d6c9a60d5d498966b526fb76c12df2c890cad. 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/QZHN92290593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d4e59991a34f63ddbe667d1c7a19eb3d34175abcc5bb64eaa7d1c199721c22. 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/QZNWT2273742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6f7453bb0336ede2e5c20a633e990fa842b787c52338a8515a74450efa43cf. 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/QZRP42224519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd62c772cf8b79dadcd3fc1c367cf77aee5b7890c04ebab6017b4671ee6ebad. 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/QZTB22273594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92eced89080f091dcaf5338c91c5b35d92bb61584c276926f2a264ea63523b5f. 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/QZFZ72385273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b01829a65b645d9a512ef64ef2320586302b17e692c87565ab0ebf0329e653. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:53Z), 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/QZHNA2327821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb582806e34f2bd5155d16b4c4d116e3f5664f9b1f84f88af0800c342257cc2. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/QZHNA2327822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdccc4b8ef6059159d0b227512a3aeaef777b1714034687f94e89e37b0eb5f8a4. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:26:20Z), 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/QZHNA2327828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4748d4b0715fa52550f6b10d17a65617b35b54450929328bcd1fff22ddf3a7a. 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/QZTB92364465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d230cb978f6e21b4b7594a16051dbf785c983b74564e49ccdf341abaaaa1e25. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/QZTB92364466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa30e1c8d24a2f9784a0ae36cb4d139d0d8aae6a1b9ecdb3231ea7187db12c9be. 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/QZTB92364469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca714f1cf0a664751ccebd5ec21ce9dbcc85975506bac85a3822ff41de17767a. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZTB92364472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00129c463176c6b5cf85c873b2332954bab5371ef1523b8eb909bcda1fd12ae. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:43:29Z), 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/QZTB92364475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91b9f61941158334f463527814bcfaf38b3a6e82bd4125f8b411666f7a7e0c94. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:41:04Z), 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/QZTB92364477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd59bffc3742231ec342f5561050ee32396dc01c53a88b33e66533663c4b28b. 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/QM4TX2489931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d2cf9acbbb34f4faa4265662f7ff32160e15a2264345fb838c9cabad432580. 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/QM6MZ2462299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c23e94fe2eaad0d06715cb7f31a6db3d5ccb3fe5af2583a014195f3ef05101. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZNWX2441559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559a82177e960a1a7dd7f161312af16ed94513c365ec67063d0037c30abe6d9a. 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/QZNWX2441563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf6f4c23b9ccd4c43702bcbb28288f4480cdbfe299b3bb0cdeb2c01c4383b6c9. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/QZNWX2441567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97110c685b41ccebc2e600847483cb0fa15d0ec9d4107c870ca9aab3554d361. 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/QZTB82429089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5338a8ef1fdfdfcb95793b44dbc74c961c139600dec1bcd95d5be3c464e1c532. 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/TCAJB2446776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad56bc0f2a7dd77f892c809f457640f5d7b3d0297fe79b5177d426744d2c10b. 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/QZJG52501836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4ad32bf860e9301827e019c860128273f26fed6660f53ed3efcfc51164948a. 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/QZJG52501838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c115a8751e8304077c59dd852033a45542a52942d6ccefab53b04755389d03b. 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/QZJG52501839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x691e523f5fe258a88dd4c9511fce44ab2b5e8ed303949e532c8e257c99c18648. 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/USLD91756901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d98c399a83b96e1cd1787d586573697420e15d18d603e51297f236db130595. 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/CH7812404640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a05acfdecd8523b93c44ad5f2a11568693ce98b6faebdbfb63c03afc25931aa. 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/QZHN72552913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82f9266d0e988374e5a02d13b8be3dffd5f739c7b2773e218280b834e68ab70. 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/QZZ7P2479126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf82f9266d0e988374e5a02d13b8be3dffd5f739c7b2773e218280b834e68ab70. 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/QZZ7P2479126.
Can't Stop Hustlin' (feat. Doggystyleeee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fa1dd8bd777be437bfaaec20b755c3c50208f17238dd584295705f6d547733. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USUYG1486099.
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 0x0d28f6ac40c89b56daf6693ebe8f8374191c6e71e1d0fa29fa7fc1d589f5df2d. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN72222119.