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 0xcea92b0020842e3f0e86f04c8360655a545186031855c8eb635e05d9feffb639. 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/664b4336-02e1-412c-a5d9-dc3171a46c43.json and https://artists.proofprofile.net/proofs/artist/664b4336-02e1-412c-a5d9-dc3171a46c43.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 0x56c5a3f90a3d2f08a4b249317aeb4fd9df03b5c3081d337408666984a40a5e24. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/HUAC69900260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0b5574f47b3f0a2e3deaa7cf051aeb32dcc42a7a51b54d6d0ef368dcd7b1e6. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/HUAC69900263.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26bede0873e82d51dfcb3c36bec10c3e63177aae0efc1f5a72a05f58ec25f000. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/HUAC69900028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45496823061c458717e8d6b258a371a23dd4ec86046a18ee774ccda75ad37e54. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUAC60401329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa680ff25785cb50fe11560a24ed28251fea09c41230567a8d747fd7c4c2ca2bd. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/HUAC60000172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4977303b1b990402794e81c15d3e7d2765a1aeb0b5591e544b3324330ef99aa6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/HUMAG2006334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0707ea65cf095ea905af3f0724d2a185a1c86dab0f434325d84fca79f50d5fd0. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/HUMAG2006336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88dcd6ce5580f031deecc22ab0ed9d79650b850ac651cc0173f17475785d61fb. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/HUMAG2006338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53211b4a6571ae2cd44f04a7aed48936290ba3df6217fb42cc29f92b63e71217. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T04:05:26Z), 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/HUC301600617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49845f9bf3a793a78838de1eafcc00183bbcafbdbd82f5e32eb0642fc8b92ca. 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/HUC301600618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e50cdef8d4fa6111944971787fd25fbbad2d3990a4b08e10dce806e788e12a. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/HUC301600620.
Kell egy kis pénz! - Original Rock Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545d46a89e92c47e174a0d1d62c1119bca2fb3a80e7f33a6e194c959827a7cc4. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/HUC302300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b555ec1565c14638c6d8084d6d172c32d11422401f0ccd4449c83ddbaa88365. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/HUC302400034.