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 0x2e5d46852f92952d5857d43e5f09ef60af439b867d93925f1859644f0d62c5c1. 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/2ccc5ec3-667b-4d8b-aed5-bb34490dfcdf.json and https://artists.proofprofile.net/proofs/artist/2ccc5ec3-667b-4d8b-aed5-bb34490dfcdf.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 0xfb75b121950ea22825b3990c5ced385aa1fdc4ff1730ac2f0fd84836b4de924a. 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/NLT2H2300105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded1a237ea88433a8f5408d6cd90a1e02ee42a533ae342dd83d593a89bb4c504. 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/GBKQU2430247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f6ca19f4bbee56ab7a696e82cdb07ea917b1223effee082029463aa61149c57. 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/FR10S2529139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2b08cd6073bea99f4d024aed9289eaa8841bbdec4f6e71b6be46a89b81eed93. 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/FR10S2529140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a772286fbd56616f7b8a986168a17c0ea8fe07327a6c33d3f3da9e946637e77. 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/GBKQU2513647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0bbbdddf575d5a6a793825f5d7b96b79a4c9f7618f9a3888d5c515a59520e26. 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/CH7812412712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb246a6f084e99efc0b54dde0a063c0e2ea04d5b45a89053b3144455c5935b5ef. 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/GBKQU2430265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5661bd3089ed4be096172bb8c96154b1ff42b580aaa1f8517e08ffbfc3f826. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBKQU2411325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e19bd62a68067ddf8ed892962f4c1f0a859e8a81c9ad83f2c9bb1e41d6ba578. 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/UK4ZF2400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b0f1b9b93df4165a6d06c406ab71edd3d52dc8cbb63f1f9e3687f6e0cf9b9ed. 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/GBKQU2329370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xade03818b9a2176affc3bd6c4a1cfd578e8888f1308d5eb6a616a9dab563a46e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QM4TW2286570.
Chill Executive Office (CEO), Vol. 36 [Selected by Maykel Piron]