MRCI may refer to: Microsoft Realtime Compression Interface, an optional hardware interface for Microsoft DoubleSpace/DriveSpace Multireference configuration interaction, a method in quantum chemistr
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 0x7b31ed91da21fb42f2ada07f9e64d2df74f39d592614001e3392ca6ebaa6a45e. 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/552a2aa0-bdc7-442d-86bc-e0f0eb7f0858.json and https://artists.proofprofile.net/proofs/artist/552a2aa0-bdc7-442d-86bc-e0f0eb7f0858.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 0xc24401c343a439c0f2cedea6d44f8da6b0a0ce18ef043759983e2dce4675af8a. 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/DGA0M2423970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9f4bd10edb2ecfcb6c2bf2e4bce033a005eb8a057f792b7de484fbd8c0a161. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/DGA052444665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dee409170fe6d7b4ad4b1b2978a132d4270d787140cd5c1e06e7bbe3bf65c46. 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/FRX452429741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb863103597012258c10e6a42ef691bd7b77c47a3a5132df1cc34a08547e43d76. 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/FR96X2421152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ffcefa0aaf97fbde9ae617d158db92c9afcb7da244a3ab02a67b0f1f7e9f487. Chain 2 (Bitcoin): anchored in block 960210 (2026-07-30T05:21:45Z), 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/FRX202151240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9eb1b801c3da930d28214addc8cf1c8ca76b90cd44946366c749faa397c2eb05. Chain 2 (Bitcoin): anchored in block 960296 (2026-07-30T19:11:09Z), 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/FRX282128019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa473c2c6fa052421aded51a56ce87e06ae1528625eb7c1d481d187f76ced2082. 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/FRX452126629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164b2f8dbe6ded998dd54f1319b661c8359a12c83d0ba24a6f321c75cb39c4f0. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/FRX872101473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a6b772d88aef1b9bac88d3f2c4aefe485755c11e890ecb30c276b03004e23e4. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRS182122264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dcc0dd48d9d44b887171bbd0626ee208af86b025bb2a118f7f25a6371c4d7dd. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRS182122265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e17943d54f53e3966c9cfc667205d980903f88b41bd4d7c86fdb0fba4a45e4. 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/FRS182122266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e15d297a446ffffd2211cd52e2918958e908a534b9a3a9550721e344a79ae9. 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/FRS182122267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556b1207b0686ba9b1d6cafe2441913b4d4f986e0ac74d8aa57c692f8e00f2fa. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/FRS182122268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b7832c178ae9c46add51f307d53e71d3c2ae3d4131c0f6af225d070dc430cc. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRS182122269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499c6169cc77149d3a71bc9a1b9cdcf7aa6d57e4ceb64972a9ff9c2b4bd5efb4. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR96X2215588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40950ed0ca7213cb9b4cc0b3ff0c568162495dc42c831b9ae3769ced53e1beed. 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/FR59R2201500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164b2f8dbe6ded998dd54f1319b661c8359a12c83d0ba24a6f321c75cb39c4f0. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/FRX872101473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa473c2c6fa052421aded51a56ce87e06ae1528625eb7c1d481d187f76ced2082. 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/FRX452126629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x147dc987887843ed944c47adf0c44c5710afe497b093d18055758d4e2d3f0097. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/DGA072127550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16db36d2c91f7b49f26e58d2c532b4e8e6008b5bcd64e9d7774ed9bf9c8573c2. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR26V2033400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c30833f86f8a30a0e6475725cdb513308bfd7ffb98c5f531b34c9c00be4dd8. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/FRX452081797.