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 0xdbc0608cb8564e85883fa178f6fc985cbbe1c92f535d3be148ceefcb4f52e514. 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/FRX872184699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09d7d0f2f0d0f450b12eaf26bc5dfcaf0eb99a90f0c6f8330baf881ce6a14ea6. 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/FRX872184701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff6e3cc22e651b39baca5d8976829d1e9588dd827b5a018a3ba76de6d31c6380. 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/FRX872184702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776063e2083befc19d0ae497c2102541d08a6a1f8e21263daeb7a3a380bb91fc. 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/FRX872184704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd2df65d3a92d800e85002a215705868d98b3528fc51e1193d7c3695347f4bda. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX872184705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2012d56bd9813da1b7d9bd5a8a17ca66573e1e4879b3dc7d69e8f8f9dc21fc6. 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/FRX872184707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf314aab11c9bd28b38f5179fb9bd16c259cd671568c716c1fa22b2f7710f95. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX872184708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba7679ff6deee046ea16f2b1ec2988aa537c1978a9e1d96fe55328f3adf42273. 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/FRX872181169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3508a5b417e804fc7e22e6bed187e00d7d667ec73bf316596cc1a58590c29088. 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/FRX872181178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x223d4dc52e31e49d3b133212d2fdff96f139f34da50c165574d972bc9ff7a93b. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FRX872181195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9027b2d0986e277071fa4d7baf4fce374264a99885bb17b56847d024ff69d11. 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/FRX872182002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac44eb7bdfc145e2c6b42dc65d55b6e21f747b8bdd664540bd47ae367bb448a. 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/FRX872182003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381c33f8f009d18b67dbdbe388661d39e208e0fd81fdf7eaddfed12bbac68044. 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/FRX872182004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7edef9f624f139197478a0de96bc0ba130d566e8dda5bcce15283456bc7fc58. 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/FRX872182006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902f8ac649935e0161b487378bad94ad811ed448c833e2969ea7399ceaf1114d. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/FRX872182007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2ac2f334efb35f003b5a3d8b69cfd349f48626c3b2184ccd76f793661d2799. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/FRX872180871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224d4184c2e10ff85e9eb5ef346a0e20c724996331db6020f19797749e2e652c. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FRX872180872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc070cdfb1f26f78c4716d3dad918febf57ac3a06c2a324fcbe7f1063191f23. 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/FRX872180874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33492d81cb8f44afb6d92229125a27f5dd65878bee4b3efcc03f7417c9ac0942. 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/FRX872180875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3167ecb8e49cd296f0ccdf8814818cfc99dfcc7d5d4d2a4ee47b741d38d2f8eb. 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/FRX872180876.