The Cynics are an American garage rock band from Pittsburgh, Pennsylvania. The band, at the time consisting of guitarist Gregg Kostelich, drummer Bill Von Hagen, vocalist Michael Kastelic who joined
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 0x2033c8d3b59f6cc5dedffb2a2a63676db3eeae736f5da64b4d3e45432df3f3d2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9bca1a71-627c-4984-bd22-dadece0efea0.json and https://artists.proofprofile.net/proofs/artist/9bca1a71-627c-4984-bd22-dadece0efea0.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 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 0xf39e65456790bcfe8b8422724dbcb1e691b53c592fe69f23ec5938d6fa9ab752. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBZY0720201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac9488b404cc416795ac997ea294fe45615be6b2adac77c4ab8d3406dc45968a. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBZY0720202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fd91d1591dc42056ff6e8cf07805a78576664523609b36562e82cd2c00c5ba. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:21:12Z), 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/USBZY0720203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61337125131afb448a56b346655f84f8c6358f44235fc876fb4558f70166b30. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBZY0720206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3624b3aa578dadd493689038c2a72a790c79e75d1dfb31ba44dd9a237c2696b6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USBZY0720207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2583771e1530d695cabf6896dd5fd7faafa8bdc0024f3d2ac6644d95114ad542. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USBZY0720211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8566f2d331ffdc89659b8f82b6101d343383cf6359783a53b18f8b7e488c7ca6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USGHR1115001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x642569d8cbaac909d8382fb88d24b717b6bcb30884aa218b4abc4e1416d257f8. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USBZY0714101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d72b16dfbddf6101aec36692339d1ed8d5dad1127e4885c2d03229fef425fa. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:36:37Z), 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/USBZY0714110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe287961b3fc1ad5a568dc48408916d096708683c542ba33ce1b4934e30396e7d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBZY9401001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e1d7026802deee3d7db64929177b95f37095d6ec16dcaf7aa1271bda26a435c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBZY9401002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0ace062d16209bd6f8f1b226101d5ab6aaf108994ea805f52075701fba166c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USBZY9401008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99139ebf36af3e132b918e7ba431e211443db6a393b62522836e15c4c2790db. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USBZY0502801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x371989278052bb88d154eaa3fc4f27fee1935e14836c42744d364e1298d29649. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USBZY0502803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8b8dec077cdc443809281d5a65050e70a3dc2752fe3ad47e98470a713260d9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USBZY0502804.