The MDMX (MIPS Digital Media eXtension), also known as MaDMaX, is an extension to the MIPS architecture released in October 1996 at the Microprocessor Forum. History MDMX was developed to accelerat
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 0x91386b6d466796270d5ac77eb8e3ce918816bacc33461bdcf1840588a5f08987. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8ec2e02-530d-4113-8af6-97aebc5ab977.json and https://artists.proofprofile.net/proofs/artist/a8ec2e02-530d-4113-8af6-97aebc5ab977.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 0x2a2cb86e2023ff8757cbb9dd49986e63f8b0765a56e68b4d93f073c68c479c22. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CZUM72301011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4991de08fefeb931ae6c91a32e74f3da808141390a94022d0fd3ead982d64c5b. Chain 2 (Bitcoin): anchored in block 960300 (2026-07-30T19:42:40Z), 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/CZUM72301002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02e4c405c3335e102317e100eafa6e288b5ca8bf036963380f889c686c9cc134. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/CZUM72301008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d8b05ac1a984e255f2abac92af5d8d7d836eab78a351110fb00adb82818640a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/CZUM72301009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2383a145884985d3fbe02fdd72f258e79a855b08727c5c0f19be831f4a527078. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/CZUM72301013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316ca7c5ce87dd631aa5078fde4796c835a824199ebc0d414fe4dd6b691021f2. 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/CZUM72400770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116d675acd90e440dd93cac4053139d3fc4c1df5fe3886eeab8e0374d01e1915. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/CZUM72400771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09de49e0d481f6722fc4e275ed02aba0a6951fd6a0324cc3f1798c54a5b4c97. 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/CZUM72300654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65547543920bc5e86dcc05ede34e54c757d2407be3b3a5cfd26dc22695c65317. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA232301560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9a7f73c92c9f0504c531372c4c354b2c00fa85795c788fc63d62c5783dac24. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CZA232301561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa210d3107823563bf7441bea4dc2477d5de006771ed11d2cc1b892c76a5cbe69. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA232301562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2b8b841540d4acc479a9b642ff199916f4d1f4da5856780c145631a244caff. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA232301563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cf52946dd6674bb16953dea4d74e9140f6b2d86a170e6f19eb81e585d1dba03. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/CZA232301564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa67e937e6da25c5eff68a6fb8e4cf8abbd787c8fc7d1766617b6df792e8aa3. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/CZA232301507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a8050cb63d9a993203b017c2810c408081be9b28a4677a52fadcb263267fd6. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA232301565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8763cc89ebeeb666598ee3eb407db487b54521e28a6e32af6248c163d4e61e5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/CZA232301566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x331621258ff860d98876f5ad195dd1e7276b131a50b84972834bff3a97d155fc. 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/CZA232301567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0677a04d5250bbfaec729176fb066d62597f72fc67a40b2f0c4a8441fe462e3. 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/CZA232301568.