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 0x5be9ace31b071f8eebb8c7e5e011b92e8376ad154e26c8e6d4fdebd5d97a5ae9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c95aea2-52f0-4746-9615-f61b89e0c589.json and https://artists.proofprofile.net/proofs/artist/5c95aea2-52f0-4746-9615-f61b89e0c589.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
How I Won the War (Live at Thirsty Hippo, Hattiesburg, MS, February 2010)
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 0x79dbe25ad74fb4bc48d5f0814d7d137131d7039f4776f2bfaa375e5dbe99db35. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USDY42423702.
This Orange Song (Live at Thirsty Hippo, Hattiesburg, MS, February 2010)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x792adab04640ddbcb39ac704cab2b0786fa55502cf6e5fbed1d3768122a61d0e. 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/USDY42423704.
Poundcake (Live at Thirsty Hippo, Hattiesburg, MS, February 2010)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71e091e8c7c5c5804af2d4f24a607bbe2b9eab6ff45c1cb1ece472b0f8aee1bd. 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/USDY42423705.
Blood Red Blues (Live at Thirsty Hippo, Hattiesburg, MS, February 2010)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2504aaf376e252e9b9a722448591d8fc7bda35257d11a479c65fb8029896f1d2. 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/USDY42423706.
How I Won the War (Live at Thirsty Hippo)