Ermac ( ) is a character in the Mortal Kombat fighting game franchise by Midway Games and NetherRealm Studios. Debuting as an unlockable secret character in Ultimate Mortal Kombat 3 (1995), he is a
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 0xf9336b5fdf9d777f8d9ef2346877303b0859ce971046c250251c96cb450794be. 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/93f0e157-d56f-4eba-8315-565c7a0ccc96.json and https://artists.proofprofile.net/proofs/artist/93f0e157-d56f-4eba-8315-565c7a0ccc96.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 0x46a82ad52f77c890a44149de44c8a515bb519e480adf6a33c9fd1ca130aad3dd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/US83Z2356069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a055b0c9a014cb1862e0f809837cc6ed51262a14ed5ac78a9b7c51469a33e00. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/US83Z2356070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ba86d2dc8898c3e0f95b88d1d049b04b53feb23b98320ad786ddd036038307. 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/US83Z2356071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x757d6279296172c623e00209f54553084e29b24daf75c6ee14f9f47ee41cf90e. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/US83Z2356072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24f8da9efd2ef05bb613c0c04f1c9d51bf11bfff65c5c6a70d809f21fa2d663. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/US83Z2356073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0be0079bf10e74c23cbead0f1285b2f908e1021cb86cd1bae267fee95b4462bd. Chain 2 (Bitcoin): anchored in block 957653 (2026-07-12T04:35:02Z), 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/GB8KE2401163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b4376882096b0475f8cd9ae559e2413fe9e67606a525d7a26b94bf1a58b30c. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/FRX872460977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5bfbfd74cdc713decbaa9ef993b714ecabd99494f2488f48c6a6b24dc92c62e. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GB8KE2424800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf932284f920b93a446c1c33e58842b49064ed0491353ef85fa2b29b9438f9754. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/GB8KE2503483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80ee623a799c2bd0b026a7a4a9e959eb2afac9945e7aae6d7dd4cf75f20bbf36. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GB8KE2503486.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba89e0800bc5e8171bf70ca2cd4c22b1e37e1fa52e9d145de258f833ce673fe. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/GB8KE2503487.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0b8fcd66327aa7d7e197c6bb77b1bf1793f3e46d41fc0d43b5fdb53099a9ab3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GB8KE2503488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6a5970d2b325bd0897ad6a078780c16cc84c517018979b4a06271ba74cd769f. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/GB8KE2503489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e3f071b40078ed661513ba11b93de31f80b9e388f23768a81c73cd3699b7e2. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/GB8KE2515354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7bc2bbd2dee6bc6e39a90e2b4ff931900117c7294d0208bc87b0dc1944266c. 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/GB8KE2515355.