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 0x80f0185111cf0d74d70e4d7f44a09482c7b57b809598fcbc29123d0596fad948. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5532eabf-a8ea-4505-8f09-72c28c01410d.json and https://artists.proofprofile.net/proofs/artist/5532eabf-a8ea-4505-8f09-72c28c01410d.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 0x94eb503f4117b99c500958e650610900c3181f87d7eb4335a1d9a689df90b535. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:41:08Z), 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/CZBN62000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5d6f85bc2c4437ea380d99033749a7f2b73de27ec1e67664270541e95f557c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CZBN62000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfdb13bf460abc838f28d57348cf2e539ffc1c12710591691aa52b9c8a514bd9. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T03:43:57Z), 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/CZBN62000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe27cd60528f091530cb6f84c5f10e685cf868d524c4add820685380d1f1a9174. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CZBN62000007.
We Don't Need Another Hero (Thunderdome) [feat. Ronnie Atkins, Bruce Kulick, Jacob Hansen]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd76fb66264c014a1b8a90854a0d7280f3cb6eeeb28f0789fe2901b8a48418fe2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/CZBN62000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa40effe5623802f21164b4eab222373073e49ca9cb07eaec5d053c13214d8efd. 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/CZBN62000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c876aff3a5132cdfbf4838dff7601664053c2354d143d15b89bef8c9cabf68e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:33:36Z), 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/CZBN62000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf35dd4fbb9a95855903c15ebb76de958d9d74d739a44763ee88847d3d95157f4. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/DE1AH2200501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf581e12618ff2b08cba465cb5cff39583fffeda6f2152d337e899e295ab7af54. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/DE1AH2200507.