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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0916c6f933ae1a045d2bc2c376dc2c6215b406a141a4c0b3a89a2b579113d94. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b9b4d2a-ea1b-43fc-bb71-944502f1a756.json and https://artists.proofprofile.net/proofs/artist/5b9b4d2a-ea1b-43fc-bb71-944502f1a756.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc4815ed210bfd3af796814f7832aede7bfa380bfa128abc9778c1cf9d8d08f. 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/INS180902920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b8ad19f5dcfc9ce203dee281eda606de1b813f29c4d05c4f0c5dfa2f9a863c. 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/INS180904733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b8ad19f5dcfc9ce203dee281eda606de1b813f29c4d05c4f0c5dfa2f9a863c. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/INS180904733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26fffea616bd7517901327ac1753b63d4b31d6ef61d8ac940f4f79420f7a5821. 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/INS180603283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e6b9940b6c44219a639f2af1b6789300d3be406a7a72511558d5ba7a5408365. 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/INS180603285.
Sau Dard (Groove Mix)[Remix By Dj Shane]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff916b8e9cf6438e1184bbdde510f0ed55ccdc5f4b2953502ff89181944bd1a2. 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/INS180603287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd9b840f0f3926f626c2dd6ae930d283e43aba21e036cedcf0d5f4b92919057a. 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/INS180902918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54a8184ba79f2d4177e70ecc85205b46b81515c26745af8e8d3340708212e5f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INS180500191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d70b248b8bc77b94b620d95c7edd5b39150eceaa75c9fd57dce28bd5641698f. 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/INY090600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bc68ea1555affb33a423e763655aeb14062089c9618b15f0d414043b3c882c. 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/INY090600062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b8ad19f5dcfc9ce203dee281eda606de1b813f29c4d05c4f0c5dfa2f9a863c. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/INS180904733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d70b248b8bc77b94b620d95c7edd5b39150eceaa75c9fd57dce28bd5641698f. 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/INY090600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x465e3d02d3eb9b6a890c32c3a17905efce0cab192ee3848de490a03b62ef51a9. 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/INS180608177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc899920b50596233cbc9a73bd46fad3cdcbba17274acc81988ac54480c81fe0. 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/INS180608181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b8ad19f5dcfc9ce203dee281eda606de1b813f29c4d05c4f0c5dfa2f9a863c. 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/INS180904733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cd07bcb9d6f1aa8400e14d9cd83c165cc171913862016f6b4038e6db3c1851a. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/INY090600056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32cd9dff7881e93c572a609782395be7f4fbd9396b7944ba9dee64d2940cff8. 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/INS181101110.