1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 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. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin 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 0x6280451c5aeb7966b4491e4629a2762fcf9b36ff889069d426184cf7a526fa72. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fb906e4a-3b5c-4e7c-87f1-cb9ad13a2e64.json and https://artists.proofprofile.net/proofs/artist/fb906e4a-3b5c-4e7c-87f1-cb9ad13a2e64.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x0f9ac1b2909a482260a176ac48aa2f16a74e8503fa1ea37f5c3096d007f8e759. 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/QZFYX1900758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d796ec461beb26e1a1cec8f5ebcbf2a4659dd712989d4c080fae5497f5244d3. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/GBSMU7424234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12f4cf23849e35a26d50b28e6c9c3c4ac2b9a1f8719ba7aaeb27c6d2530dd6d. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T13:52:01Z), 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/NLT2H2000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c58e82a5ae55d449b4b1c373e490542ae52a56024bad9c8e827f0ce9d303685. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GBSMU7910018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b39a37562f77bb9e0c9487bbbb2d833ac3ede65af77eda75647f574579d1a7e. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/DK4YA2151101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ad37b51b09d41ea1abdd0da722d240507be0a25b250ee25c211215db43d6459. 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/DK4YA2163401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d8136efadef0eebd9dc1ddf5a6f8c2ff5ca1445d9d437bcf3d28e08c9843b8. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/GX89G2313504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a8c4e1241928d222681eb630768846a3b4ba9b3cd61ef008a6e1c49284b014. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/GX8KD2316121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5f7ff128a3d5742e26c0ab97236433f6be1ffd36dd666c15ad52f36f7fb503. 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/QM7282313644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec062fd81a1bb6ae80d21f9b630f69871302ac8bc6a0d0b157310c9925cfea19. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DEPY32500045.
So Good - Dawiid & Josef K & Filip Radic Remix
So Good (Dawiid & Josef K & Filip Radic Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6824dff43870633dce53f56031616b6be14a3f11542987b7a8a85be0482b65dc. 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/QZFZ32005388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d536aa4973c16ca25b34f9d5732d1deb1796b07465750d591909012cb0c62f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QM4TW2259032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae36b725c6d392efd7bf7f949233b8576c5a80c271fe32051c02ebf993d60490. 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/NLT2H2100922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa107b244b74412611ac3b2bb5a0572ceff8a7264de8d912d405365317106ffec. 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/SEBGA2202048.