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 0x267450c7c4d163f6adca1aa73b88397623e1ef7d36c1cac4cdb5e540d6c9cb1e. 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/SE62M2265522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ada61425b307aa4b4ff660d9c5bcbb97a9b0c0d61ba0a5efbf3a1b363357aa. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/SE6HN2496453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac7f52505c80142f8bb307ce9b76475213ffc07f0360572b55ebfad5c2b1b51. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/QZ5AB2211611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8401241d2e963cc56e110bb9e26da1d2f14a90f0a33361f200b9554bd351863. 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/SE6TI2372694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca27529e10ed0ca14dd9c025df2f0e068a09d438a74407ca552f3fca9f5ca8da. 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/SE6TI2392476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed7caf499faa2859b1fa1e27ca55b4524afea6c6898b68bfdf08e784606998c. 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/MX2832265322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726a02ddaa23898edf98b7db4dcd7588e81d90191f65c73b038354e8095553ed. 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/MX2832265323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3896042bac46176d0baae90a83b4ab5496ae30b652cd48559537f81e07b1138. 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/MX2832265324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4a848815ee50a25513a7d180684ebd162c1c17f8411e3aec6ce8ec26a707779. 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/MX2832265325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f9fdd5133fe8279f8a49d7900c5982833f077d50e53e1db8a14552fd1f22e1. 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/MX2832265326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac7f6b910aebc13397d539b05500d01af4056cb215d28cc69261de1d45798d1. 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/MX2832265329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04cb5fecf5b83fb4f1bc22dd8e4800714e0555d735156776b9e452acc8f85589. 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/MX2832265330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ab1c5fbb290074ae9e0aa912c18a7dd4041f7855a3c193e1976c4877fc7d79e. 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/MX2832265332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9fd5534bc038f81139f2cc9bc0468ed79962803d1fc065fea4681e632930f18. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/MX2832265334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31d94e33ff76d68885560991fd08f94136d360f092b9ec8551f0a5e33c0934ba. 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/SE6SA2495541.