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 0x9f905cdf779eacce88642cf06b35046c91186f87c15da64ca1eb284e9a8b2263. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/HRA041787766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe7f90629a44d7aabbed6338c95494d0a149db753c645c8e3f21f9b1e417fd3. 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/HRA041582254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bd3f663e447f492198c1c32cb41795c1d438e206fd40a9d1e69bf91457068f. 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/HRA041582024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56907e7d64ee96e1a29dbfb0feca6a4bb160282b781e150bb0effc3a26d123d5. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/HRA041582095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25480a96164cde03129475f96775cf51c84b27d2543a932f32db6453013c3951. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/HRA041582289.
12. Glazbeni Festival Šokačke Pisme 2017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7c61fc745d85c0d203683f4eb7f83aeba4b5910f16aa55dec16d74318be954. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/HRA041786343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6323e3ed90e6a084249b8810b794ef6d3d1317076f0b19a1112a5a131ecba105. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/HRA041786348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9286484692af228e471ef54cad40abacfad6427219f1a3f76a439fc4bab991da. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/HRA041786354.
Glazbeni festival Šokačke Pisme Županja 2024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a8209c433e3667f87c783092847204bb7b8a020e0f49a0e93861adbfa85ddbf. 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/HRA042400526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13861d077b5da94c1dc744e1eeae19cdb30f17cf8608e985838ded1e1dfea104. 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/HRA042400527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb13596225c2904d636715c4d677341553a1a20303515f5cf688a095734d811bf. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/HRA041582026.
11. Glazbeni Festival Šokačke Pisme 2016.