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 0xee3733c82fc57a5229aecbbfd42809a55d0d1b8461d89c0be7ceb940f0e52996. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bbd2c90f-b611-4989-8d72-8bb747b4561e.json and https://artists.proofprofile.net/proofs/artist/bbd2c90f-b611-4989-8d72-8bb747b4561e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bigger Boards : With Bigger Nails (With Bees in Their Mouth)
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 0xd2f53cd1a64dc98ceacd407a11110194db6ae100def375b677c430fe0ea79904. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:18:52Z), 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/USQY51085549.
Armcannon 2 - The Return Of The Attack Of The Legend Of Pizzor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x338bdb417de8232f63f6d70381c1fe242677f9d830dc15c64895f97de9c3a4a6. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:44:39Z), 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/USQY51061570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a3933f90c7091bbc9756e755c21fa03c4c33ac9da873a3cf88e796f0e2b8f3. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USQY51061571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec1f5d5db0cec380e28b2cf12e555f256b23fcf41be5e4c445ed73910cfc08e. 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/USQY51061572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1b3a710225856558b4cbd5a33bf819255f366276ede15cec069b528a34b6b89. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USQY51061573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22b1abd9879b4ea34cc3bdfccfbe44fb3cfc82912c2641bafb43071e848f8db3. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/USQY51322228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x889816e60d4cc42fd67b79f82858774bf99f914324a36598b954dcf3cf4024bd. 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/USQY51322233.