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 0x2f8aabaf861d3dabc0044c0ebd94c75a0b6166cabbbe3ac3b4b2cfb1d1b460f4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2c30861-b052-40da-8e41-beb093ed4a06.json and https://artists.proofprofile.net/proofs/artist/a2c30861-b052-40da-8e41-beb093ed4a06.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 0x1e1a4f78a8901406bf1317de99eba4c66d6917844f79ca52b81a51cc97b39fd5. 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/QM4TW2001989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8850fc32f2ecf3c6190313faa7aa5554149a592d82ac06c904163c0059e5b04a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDXS2301664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6504da9c138641ea30f21cc86cf4c8d69bf73c647c732818afea16c34ab6773a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USDXS2302829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b0eb63505b9480d2cf5ac293efc176bdae51997a9d8fe45651a64f086b9512. 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/USDXS2014125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5a94fb4d1bc5f7139a0431aa118bb4150c1b746bdb6a3ef5a2e9269b25c9b7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUYG1268504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8019c383a9d1bc63715f81737ca704047452ea86be638602bf28446fb920b7cb. 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/QMHUY1650609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe69a8ff8e0dab66f8d215d2eba4664c6d5dafd7f2b6ddfbe92223f94585b849b. 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/QMHUY1650592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf009efbc0770c332d5aa39e18a19be44bfa658368f3efb32c41c8f5463548ae0. 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/QMHUY1650649.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c392c021320fda2019ca2a274b06024a573d647dc8e9191f482afef8f431516. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR96X1616808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f5a94fb4d1bc5f7139a0431aa118bb4150c1b746bdb6a3ef5a2e9269b25c9b7. 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/USUYG1268504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f2b2d371d81130476c76f455a2d030f60900926ba09548bbb9fdda0cc7b663. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USUYG1268508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa29aa1206b4228909f5683971960cde00eb0078b5da56f54025a6cc772a5131. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QMHUY1650583.
La Franquicia (Mixtape) [feat. Dj Scuff]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a4570f31f093dccc99fac6cf6f0fed5516f9b0792ba55e79980a3f87c38d676. 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/USDXS2014238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0064b8bfb1cca5c5f564c1f7559ad001d39c56f0d8d348c7a6be789e4dcb89a7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USDXS2014250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d411769cedc5301a6d7e30b16f766e2589a2cbcef80e9eb79b057825fe1115. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USDXS2303502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b464b201804f13263037707fbe4b2794d313d60476232d8a15e3401aba4f29. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USDXS2301663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8850fc32f2ecf3c6190313faa7aa5554149a592d82ac06c904163c0059e5b04a. 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/USDXS2301664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107ed7c3567bd24462abcf7e6aa6e867cac532014dcf6120c063c27ed93bd884. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDXS2301447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6e28760c533d2217c17f7739e611185ff52ea55341aab8c462ca202f7d5efe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USDXS2204128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427ded57d2455e7eb6d39b85c3f174987825c6b41a64a9c13a6466fb7d1390a1. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QMHUY1650811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05cc20111ccd56c32d4184afe99165549546e14552a7ad06482815a37eaf5873. 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/QMHUY1650737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8693e4542797f24ecafa022557b82ff37af9edff4fef9b2a345023e592a57c52. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZ7R41751873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f8413eaa001e5d9606c85a44e16614704d2fde01b390569d79d5a90d646401. 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/QZ7R41850731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0467205dffaa7efd02cc587e866c76c9ca306a1b0f9b2a89e2a920df4af285a. 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/QZ7R41850732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5092f0a354404ad6259f9d0d2486d83d939393ab7bdaaeaae8d76fe664459d76. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ7R41850558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb198af523cde8ad709704152cf2822828e605950dd6ae00d793d7755bf7dce78. 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/USDXS2201112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd23984ab849fd3c5bd6cadb24e0829d9c2b0ab557c2f5b4844925ba617fe7f2. 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/USDXS2201079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f2b2d371d81130476c76f455a2d030f60900926ba09548bbb9fdda0cc7b663. 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/USUYG1268508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2e96bb63cf084c36439e69494a0869125c92bd317970cf580ddcd083cce4167. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QMHUY1650625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9979cd3a69991260b59d866de09a89d7c8a2b66a81cadb281051518f24806f26. 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/QMHUY1650591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88516f88565ef1aa09f55ea5418f56e2219afd3e105020f02c87b4d3f4df2a9e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USUYG1275019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f46bd728959c2270f29adcf5ea3aa4c2be836cdfefd513d61e1ffe713785f4. 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/USDXS2014279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6504da9c138641ea30f21cc86cf4c8d69bf73c647c732818afea16c34ab6773a. 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/USDXS2302829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b464b201804f13263037707fbe4b2794d313d60476232d8a15e3401aba4f29. 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/USDXS2301663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378d9ce51d603de2dd8e473a8275c21b60cb11aa1586caeb635b0c8172088a66. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZ7R41952227.