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 0xc3d0faad6acf464450a0982273bded674b8d52fba6375ef85bbc05d004b03ab5. Chain 2 (Bitcoin): anchored in block 960354 (2026-07-31T05:48:18Z), 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/CAI372200286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ecd007ec9315f3fb7051dbdffb315775e296d3411a2d053d22118e5c5d3c277. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/CAI372200287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8ad3af5c314b75e5a491a338b37b6e68baa9c8bd0c42cc0671625ca4bc61bf6. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/CAI372200288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbdca5b61f8a7356557242259b2a61ee1d7f293125b01e332d6b21bbe84158b. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/CAI372200290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9264d443eb1376eed4ab806b22cc17d9b7eec230776b39562c8329be75f8c64f. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/CAI372200291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c733e358059b2b02ee1a76965e774b894714f1ab5f692d027bc982dad221b4. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CAI372200292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3697ab297e759e70cf6187aa239eb970dc61b093ec6407597c1e8e561e5cd44c. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/CAI372200296.
Best-Of 100 Jahre Brass Band Posaunenchor Ochlenberg
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75230a83b517951a95a068ec67e998f6cf7ba1d2188a8fdb24663ba969054a4e. 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/CHD042200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc95c77f464b338616f31adc4b054cacef20e0670d9371a6ff4557c8be3ee0d3. 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/CHD042200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf808eaccc9ad819614d9d52eacb5f5d994ec701b3151b5c77276d11f2f261196. 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/CHD042200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c48840b3324b0882d21bd0e94eb1c9e4194fcf9587973a272105b2689c024b4. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/CHD042200108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e4c65df134a6e0d7fc7388d0930c59f0c2ecd184a2769ec61f7118cb95a49b. 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/CHD042200111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4881721193fe18a80c4b59da102519b497fec306991137bc8e537b31cb3b53. 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/CHD042200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf91ef0be0331a2643745c8973097832c3e5f8e2aef2135be692e437f0588d190. 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/USHM81961315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35c7695dbe35b96d09faba24bcbd290ff3ebb72722fc3dc8e7274fc02a424b5c. 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/USHM81961319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcace613eab48ca2d8e98d29f9a3c29d68a2d6c99044d3ec71d297ff0190dadb0. 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/USHM81961321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12755f773671c60ebe2eb3913e1a0c6d54110fb7c2458f36143990d57ce9ffd. 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/USHM81961322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fbcd0b61404ce29b51e0db29c6d0a2b52c602d6eabb1c44e45638de5174f66. 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/USHM81961327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c1402968c8c1a100f2d4859168af97cf339339b6b620273d07630e3b99093b3. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/CAI372202121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad358b14bb882713d7ffe23d0f2d199074a8ac4ce8736d0b78c88e7658092ff7. 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/USHM91629800.