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 0xd8e884dffaad88d0f9c229af9b2a34b294d39a42ccfc6fcedd63996fa6ff77e5. 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/DGA082496875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd06f1667a0129526d265d06365d33d328ee659b15f447dd3d579465565d4d2. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DGA082496876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89d65e3423ff4b3ae6a10c5e481de95a31c26acd99449f18325e7a7c19f657a1. 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/FR96X2426015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff2a2f3e49be319e789c65dbb9cc65bd709060741670ba007fc95a7e859779a2. 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/DGA082484176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d92bd919cb5f21a6ee80fac4b1fa7509a4efa47aac3b40f9a1ab7613bcd782. Chain 2 (Bitcoin): anchored in block 958041 (2026-07-14T18:13:17Z), 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/DGA082414190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc55dd049051ed936d56b78b7fa7df5bedeca9e21d1cd9d7996a4a9d6874c2f37. 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/FRX872438539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b5bcb243cdad49a1139a556a26dfffa3d1caeb1c493c0bf54b0d3dd6fb05212. 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/FRX872438540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a874905e9518b64f13049d335523e0c09ac1a74a31bb90eb6a8067c1a88a9d5. 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/DGA0Q2347921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4d7c328e59fd1d325fed4a5d0f86f73eb59eb9f6b61c1647b95a5b6d57c6da. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRX762449168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf28f71c6a16a6cf20651f3ced535fa9771fc792df18a8d9bf3b1318379c89e. 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/FRX762449169.