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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19dafdaf09518d45f739ce24974a142e59a6036c58b58d059b7a3222ca40f545. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78468807-eb85-4348-87be-fa4978bdef0e.json and https://artists.proofprofile.net/proofs/artist/78468807-eb85-4348-87be-fa4978bdef0e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Simcha Strong - Camp Simcha 2019 Boys Song (Camp Simcha Remix)
Heroes Tonight (Camp Simcha 2020) [Camp Simcha Remix]
Heroes Tonight (Camp Simcha 2020) - Camp Simcha Remix
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x408260b388ac4dc9c9619848b25a0fd354d8c189e51cc1c7a82d7dd7122fd268. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZMEQ2019471.
Coming Home - 2021 Camp Simcha Anthem (Camp Simcha Remix)
Coming Home - 2021 Camp Simcha Anthem - Camp Simcha Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8778c4b75cddf06474b68b864a4dd8e6a08a205135918bd46291ad1f60a8dfa. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZK6N2147975.
Let The Good Times Roll (Camp Simcha '22 Anthem) [Camp Simcha Remix]
Let The Good Times Roll (Camp Simcha '22 Anthem) - Camp Simcha Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295e8a700e611c3641f1bffc87b122195d56bf38747b1a3e9e97c51a8c465779. 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/QZMEN2298105.
Feel The Simcha (2023 Camp Simcha Anthem) [Camp Simcha Remix]
Feel The Simcha (2023 Camp Simcha Anthem) - Camp Simcha Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88b6cb1183baa6d79953b83c4e4a2cd2e949132b2404c975e9fda1d061c49a4f. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZNWU2394536.