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 0x53ce617d54b6a897ea7a2b20eb8b7360babfe702839e1b3a63ca12bcec932cf0. 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/KSA012184624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15c67384e6068472190b90e87e31b1a0ffd4424fd59937fd3917882b452e41a. 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/KSA012184625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5777cc1cddcac64911bf4225130932c3cb76ab1f6c6bc1f583d6c1fd22699dce. 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/KSA012184626.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0e9f9000284688609703c719984ad3d733121c1fa39966ce9d3f287fa7cec1a. Chain 2 (Bitcoin): anchored in block 960259 (2026-07-30T12:51:24Z), 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/KSA012184627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1981384265144224acc33744e9c7254ca87b40c538063d0b2f1f5cffb6bbac04. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/KSA012184628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bfa27e2c067313e5b8b90b9736d2d8932bf145df89b736f4899eefa6660c63. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/KSA012184629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc392320aa03368e8f420d8b7a5fcd2d1cf5b54a51df10dc763a71e05038917ea. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/KSA012184630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27337eb4e096de17a2a0221685d5f9b35979a69e23d01e3f0f69ab177ad35094. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/KSA012184631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033946e7330b68721487f4e5b89cab1b2a28b3a9d98c43cd4ef77fad10c7d839. 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/KSA012184632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fac61972ccd46333c3ea344033ad32fec5fc16b93a24c68e3d903bee46d333. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/KSA012184633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x063fd6d40870c9b6e9fd6bcf06b5c710f7972ceb2c39683eb1391b099ff20330. 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/KSA012184634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6b65ff74687cfdd1ddd40c3fa4b34a03a908bd34da76220eb9472a3f9da7655. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/KSA012184635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8962a1791564fc3f925ee3cf97f14f5db0633996f3cea65e0991a94b6b7ee51e. 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/KSA012184636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548a3d78cb143d5fcfff5c5c897fbacdf773b28dcb07de20b1c12e635641ea61. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/KSA012184637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47e2c2d49cf54f759cbd8bef7acb1595ff41a896946ca4a8559be3fc5c7b4929. 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/KSA012184638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d415d3f8a3eab1145faa801766a65734eaecd582980d7904e71c33250bcd68. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/KSA012184639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cddb9108c382db7830647debe92586c13ee055e46f7de0ec8a3d08166480922. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/KSA012184640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd867217899ac430ef3dc5cceb9ca649d874c171c8e867dacdc892199b584dce5. 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/KSA012184641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07f11f8e6f1052165487d10f50b65825e02bafa5f85db8064c333a46e89f3f44. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/KSA012184642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b8c860b156f29e3dd0f2f23a5c0b0446639704be4b92e945b926247c4d6eb3. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/KSA012184643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002627571367d05a656f988287a6e0902e68bf2f3ce12544e7dc68173e81fff6. 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/KSA012184644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1da4d7caab4ff332eace4abb1d00f4018f8b836613e1fb2cae200a8dd368426. 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/KSA012184645.