Nassau County Firefighters Pipes And Drums
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 0xc65ce284805561b31feabd80b29665d34cf4c60277219afc4a57269add05b222. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a2b8093-1fde-47f3-97e3-f1bc28bddf03.json and https://artists.proofprofile.net/proofs/artist/4a2b8093-1fde-47f3-97e3-f1bc28bddf03.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 0xf4a2b2592a804e5e0e4241e2ab84b4d8fa7dfa70fb0f66724a72cc3589347bee. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USHM80595622.
Let Erin Remember / Minstrel Boy/sean South/wrap the Green Flag
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8c24732b432c709c4c128099f089c43c7a3600eb2149fc00ce392c878a43f9. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T11:28:24Z), 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/USHM80595623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x089e8b0486b8298d9d3248d3ad865cfa23a35b9feaecdbffdaca16e346ec7a11. 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/USHM80595625.
Star Spangled Banner / God Bless America
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f32cf57f88e5a0e94ed228ee2900548b422479cd8ffb31ceffdb18fccc938c. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:19:45Z), 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/USHM80595634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316e4b602576d24094ede2361bfd6c39361d318d16ca5f3c92765a6c5bc11dba. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USHM80595638.
Irish Rebel: Dawning of the Day / A Nation Once Again / The Boys of the Old Brigade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1299c9c8f26ee59cf43b9825d1db968b52b157df04097544b1bcb7e891e3c4c9. 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/USCGJ1428909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36ab0258f2a6edaa6803e8274a2d36f84c8d9e3dfae506ee4b5fbddc6670f5b1. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USCGJ1428910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e5a508da24d1524f9057a9513877a304cfa981470098c8f61698711aae4a84. 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/USCGJ1428916.