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 0x8f336e3f5eeb9ad62166d70f6d99dba115de0d8d005ba9c7a51382d4023e7204. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/BRACT1607687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x580be4b2a6629e2b6403aba5e74bd683d125af486805861874f8ad308b38b2be. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/BRACT1607688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815eac841ff5d8ed63ec037e7965d4e6e2470f1aa5c806578aac4293c438a4ce. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/BRACT1607689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8785dd74309650af511a98b6ef27e6bb42495c313409c56e351a630515f92b0a. 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/BRACT1607690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2225bd842d7ee75c9486fa0749ab8d1621055beec14222cb6ce5e12029768b. 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/BRACT1607691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4431793373c38b012b0bb53241bbb0263cf5ed9abefd793e76337e35964b7ad5. 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/BRACT1607692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2082cd463a2280e2096d366d8aa685494a3572c9a3e348cdb9a74024e7e733c5. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BRACT1607693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9633298681ebe1c78ef82bc3f13a2fcdc8961ff3c4c440acb61cfb520197579b. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/BRACT1607694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530e8e6d01f9c66cea44e9495c04332e0b1ce48775f18771cd217c7178950444. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/BRACT1607695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1c49471ae065c4acd01a1ad108cb876e22aeae455e29b29cc6c02b370079fd. 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/BRACT1607696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91177c7cb6c4dd982346124eb1df376e9ee069e1bc88d077b8098326168dd2ff. 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/BRACT1607697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90b9ddadaa50fa37bfb003560f25d1e396e2e5150495359314c59ecb20941b2. 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/BRACT1607698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4e999722af235ad7e56a446b3aa5744c2346c23aa344f7e10c8e80ae15d2068. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/BRACT1607699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010a44fa43f5bd899c8440b5ac4932e8d9e02743f448b7b7faac9875527200b3. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/BRACT1607700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f035a7f7e8ec17364aaf420d64d29b3e2266a0be9cd0148a959032904f0f2ad. 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/BRACT1607701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66d99703e96b9e66e081047ce50f1a62023e1c4654a45b60c423ddb691e8c2a1. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRACT1607702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b2c4e481f2998bf063f56071ba50a05eb559465605fdfd64383cea2ca2f4e40. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/BRACT1607703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec9a7ceea2600472cb888e5deba825b1689b93e41fddafda5b4b601317a06ec4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/BRACT1607704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa08e70e846dfd14e02db86470b7f61cdaed4bdc4b89198b4a9c31d442fd7859e. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/BRACT1607413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7652d68a50d64efad8cf056b825b61bdb75042621fc02b03c9989aec6c1117e0. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BRACT1607415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd1a0a6db06301fe199ea90b0ea3fe28066b9a749db3abe1e66fb581f9e5b6cb. 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/BRACT1607418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x495fa5e282af9abb9e5fbbcb93dcc7eb09eeab4ebd407e7cb7cc87fd95fad516. 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/BRACT1607420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1790a7f9d406a2699dd6d8712fad8f31934685b801e4f0d808a66fbdfd13545. 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/BRACT1607428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604225e7cc238914d333e555ee75bb09e03164321605c3e8b62001ea27dea11b. 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/BRACT1607429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd7fefae7d0d0bbbe775d7b41e971201096411c6b866cdf82317e3f2cf7a708. 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/BRACT1607431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fc41a46de13eac46fad4a95414a613ffbd3da17876e6483c667f09ae8e370ae. 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/BRACT1607433.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3392781d3f3274f3b0b613fab53bb052155d6dd0b7d581e4d8cd843ed25ad7. 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/BRACT1607434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e89c718cd849e7ca6fe40979b65f74f0cfb432308942557533f14042ae996b0. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRACT1607435.