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 0x01538c54152a5e35ceb730ab269b6f63a39b16ab35d7be3e334f40c8c65234b2. 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/3d4d667e-6008-44bc-bfba-f08810c11755.json and https://artists.proofprofile.net/proofs/artist/3d4d667e-6008-44bc-bfba-f08810c11755.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 0x39cc072f9ec6140d36fc5ee44c63e26f471aa12a0ca2653289b3854598afe739. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CAGOO2439559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc549a7bb55bf1cdb8e25a0cfaae8a6ed7a98f9192b337f15c5f035dc1d1b3903. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/CAGOO2439571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c118f029158a6a126e2e0280013357d953ba295fbee2e454a157c91fdca9cc. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/CAGOO2439562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c03bbcab5d3a1d5f7c6d463c162a82efeb0223e61bb119d2ad50da88e186051. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/CAGOO2439572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bb53ef0b5ba98f0477d7eb3fc109d1675ef733f9e09786226758afe3f17b4e. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:27:10Z), 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/CAGOO2439569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27863a51226d4ea20e9aeaa2ae780c9712627fa0243824fe1df627aa2ba33290. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/CAGOO2439561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42442766fc1ca352b679a8b7257e76bfdfd613839b360ac3749bd5e5ce2b770a. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/CAGOO2439560.
REGRETEVATOR (Original Game Soundtrack, Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc64ec1e4f4ffea9ef08e9b1c89ff1cf01f9e33506b29f34273eaed69dda72f02. 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/QZFYZ2434907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdba74829476347422a687e39e815ea37a90a42d273af712b1e3a07e961b0ed67. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZFYZ2434908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7db81752fc2c3b0180b21eea7e879fe7809eed3e0e855f89abc84e6433ba2be6. 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/QZFYZ2434913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7207484e3be385da5c0e7123100214c662317b6ce037d5a8322a3b1a9f52e976. 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/QZFYZ2434914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e3a9e7d1a3c9ff77cfd778c243b36fede15cb1fc81d83390bd2ae29d12ed444. 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/QZFYZ2434917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594dde02ff68527d2e4879d75252bb9a9ef439912b44b032ea6d33f5989150a9. 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/QZFYZ2434919.