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 0x3aa065cd918590588d96f30b8d1f498d4bf4bdd83a47133cb0f523dcf4a6cd2c. 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/582f5fec-f87a-4982-a235-b4518e0c214a.json and https://artists.proofprofile.net/proofs/artist/582f5fec-f87a-4982-a235-b4518e0c214a.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 0xf6452ca0688c45519a8889677cf9cb0365eb3e70dea4af308238da214b1610c1. 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/QZ7D91777092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208f759f9b9f826067dcbbe8c014eda703f7b81b67cb3b66155680303543df95. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZ8WX1747393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a764aab7b2d3950bef96044590fc0fb1ec7d2130f2f627183e966088eff5e8. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM42K1813185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8910c97ceb31095a100d91ab19eb8da159a642843fa302443b7d511b10a43b1. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QM42K1813867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb97084754f860ddfae769989feb1dcff301f743e9dd981fa2e3e485920d0f5. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QM42K1826416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf277ded35ae2a699d5344692dc2c10942a4d60ca004855b8403256cf30b3f297. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:28:57Z), 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/QM42K1927570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc2ed35615495dac4ce1a0bf4d0636dda7702b0432286f41f16b1504e236ac74. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QM42K1923833.
can't feel okay *the power of the shrooms*
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e159766e7c2ad88635df5b43a15a8ce642224133d56db7f76a39f42fa7d61d4. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZMHN2059547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x694598f9d7b73eac6f849c7f306bca3e8ceb247c8bcfd2764590b8c37c974504. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMHK2048438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d9b7909696d224213ef44957a8b700207700e658f01757f2f05d0a659bc167. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZWFJ2368641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260a7e161c712bb0cb35f0356669c1c11f109cfd37518fc252e9245019231f2c. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:24:07Z), 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/QZWFL2404353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3448e02109ac83175e7d7414f4aedb9e8afa2e030688b758b0640c57bf89651. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QZES62572579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf38c781ce59cf5dbd72325606312c8ef08c9c8062eb6f0fc192c37a0b15e57e. 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/QZNWQ2547888.