Hagar Schon Aaronson Shrieve (also known as HSAS) was a rock supergroup band featuring lead vocalist Sammy Hagar, lead guitarist Neal Schon, bassist Kenny Aaronson and drummer Michael Shrieve. The gro
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 0xea66f2a3b0953416afabb3733e8a621c7ceddb43803e4ca11e768bdf057e41b6. Chain 2 (Bitcoin): anchored in block 953691 (2026-06-14T20:39:17Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6bf39f68-462e-4d74-a23e-3dcf8ad12a58.json and https://artists.proofprofile.net/proofs/artist/6bf39f68-462e-4d74-a23e-3dcf8ad12a58.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 0xd531cd41da00fa439bb3350a4e605a858914fa5449b372e078550c71d97ed1a3. 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/USIR10000987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4a731eabd3fdf2f74ae9ccb0eab52d45209d01e2bff50bc8b6dfe77eea5ac7. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/USIR10000988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcf2d3ff14d387682aaac2729df93783b272204d63ec5fe7b227cb74681d6058. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:53:49Z), 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/USIR10000989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56640e1904bcbb53082a6b366ee316b7a9de9b6700cf00c1b925946009979005. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USIR10000991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36c1ffec94d2e8b58f87cfdb020cea512b45a629edd680e8eeddd584697f5b3d. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/USIR10000992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26d2ebfe49a26b70782b492ff284c6f70ec7d04479ef25f420d90380905117c7. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USIR10000993.