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 0xebe97cfe9b928a164fd7f852f7372467db417a2e1d291a2e176d9960bab5df55. 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/98c3aabe-b687-40cb-aba6-cf5e8fb5346d.json and https://artists.proofprofile.net/proofs/artist/98c3aabe-b687-40cb-aba6-cf5e8fb5346d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Childhood Trauma (When I Grow up... I Wanna Feel Normal)
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 0x6610b2a35bd4a7607dc1fdecf82e293fb797febda9ef894b7b40a94eb77be53e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCADB1799369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x749fc47360efc37459b4f5035fadc260ee0618cc5eb6612b53e4cfa8f5500f79. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/TCADB1799371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada34813a2775ed0fb3fcdfadacce44bfa10448b2a129b679ed0671c522d516b. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAEY2052191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8eb82922ecd88690465b43906e36057815088b8b71924d8a1222fb64e8e43a. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:22:21Z), 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/TCAFI2189707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb14526e6356b6c4c60177d5048859e133d97f7b601ddbce84b7570e319689429. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCAFL2138127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb786c03189d9220eaf1c0d9bb2b983763a3101aa3dfe2bde4bcdc718c13f0bb9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TCAFQ2108462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe685a569ebb371759bc5456a7fb1ca098590ea7d0e9887b43df9057b74c6acdb. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/AUMGB2201135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa28a3b29970f4687130dcd16ad24c97b0e3e0a78e1ff60026c9f1f263e7e4078. 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/AUMGB2300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x155ef3e7932000a7b75008abb50817497262129fe81aef02c567903c7976d5b8. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/AUMGB2300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef4c24750f91cf4192c491c9461ce91c2f903b112f688ec55003a669dbbb71c4. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T18:57:35Z), 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/AUMGB2301269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d202797d570c80b6645d27bc1688ca0ecfc989c87506d71d852dffde69d4090. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/AUMGB2400651.