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 0x94e147d9ae1bf7974da3e0c6f98a7d5164b85db0761e5c0533232f5940a0f5c6. 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/19bc03dc-86f7-41ee-a0be-228d7f699d26.json and https://artists.proofprofile.net/proofs/artist/19bc03dc-86f7-41ee-a0be-228d7f699d26.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 0xc4699fe0033a2fb57cc5ae06395c42e6f99b25bda93edf1e9f3f6be36f20efcf. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZES51859329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b639fabe5cfecbdbc3d6ba3b66e97d3debd4e4aec5519455a6580cde6eb0ee6. 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/QZES51859330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16d5548b5ab4678b611d8fa619cacd92cca6d66d169e72236a6640897f0a0f4. 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/QZES51859331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9f0dd10c99b1430efaf84dbdbf179433238baa6eb394c6cf2d50dc6f7941edd. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES51859332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd447988232287b22792090a4e420ec3a2f72d98c52a9c5789bf27fde1a8d9e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:37:02Z), 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/QZES51859333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecdaa0be56160f44d71b2472199c6cce190ee24585a1768303f834d56ad5d995. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZES51859334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e1e044c132d21a623bd93793d8277dc99eac921fec4a163d3d774296e9a068. 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/QZES51859335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6c0c1a646eb2bf609833d69154dedba5637c9314aab1309ac709857afd6992. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZES51859336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbabdf2e2d2d89c7e489d7f6967c085f2379b964208a7d7bfeac6b84315e23f. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/QZES51859337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd93a4fbfbc1ec415acd3fa6ef1a416e643dd0de00f98f13462adfcd7857524. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/QZES51859338.
seeyalater stratocaster (insts) [instrumental]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb4035386ed5e8380773500c9d61d5790f443501f3778ff5957ddd75f5a33cb5. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZTB42349931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c44c2d4d7bbcc202424c838e71ce7638f2f1575b791c24c4e490f542f4355e6. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/QZWFM2331940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6417a31775f0025d0c3cf2c69f75823c458a379eca836b65b5ff4f02d94798dc. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:15:50Z), 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/QZMEQ2487230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140b20ff9411051d7856ca7a5aadfbdeff17065b82531a12c637427eb5eb0d91. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZK6M2479261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9047453558932a944172d44ffe485f0aa2d101ed85e19a8b994ca84d2674aafb. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/QZWFS2507857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a5deacf7a5c4f7dea4ea5a057b8ea08bbe41f6547d8a5b4a26821a3d74c163a. 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/QZPJ32342603.