MultiVersus (MVS) is a 2024 free-to-play fighting game developed by Player First Games and published by Warner Bros. Games. The crossover game features characters and stages from and inspired by Warne
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 0x6639d1e1bb1f15d4c3af9a33189b4637e284bc91defb39d8ca60b69db44d9294. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c9c48aa-5d56-45ba-b743-02506ccefb54.json and https://artists.proofprofile.net/proofs/artist/5c9c48aa-5d56-45ba-b743-02506ccefb54.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
MultiVersus (Original Video Game Soundtrack)
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 0xbbdd381a0b784f3ff45bbd24fdd3484998106a2727c49685d890a2cb3f8f0ecd. Chain 2 (Bitcoin): anchored in block 960268 (2026-07-30T14:53:07Z), 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/USNLR2201121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23765e5c76a2c8668f60f76a3bd4b2d81c9ec8625038aeaf1d3dd27c235f78c3. Chain 2 (Bitcoin): anchored in block 960191 (2026-07-30T01:51:26Z), 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/USNLR2201122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a40006b7311bffcc88d4a8ccf936316b4450fff85847898ce497c4c5c470433. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/USNLR2201123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfea20fc8a66b8c07b05a2726bab58a7ba1be6eb48b74b3880dec93f24f0ab3aa. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/USNLR2201124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81697d2a7b7e3d3453166e5d8fb2f0d00034c961096188f91b93e2ab165e33fe. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/USNLR2201125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe173f864f75b45100cd9074deaf38ff8aa32472fc2b97f1bad531763b59434c. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/USNLR2201126.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f552224aaa890f202c5bf597f99f485bc5734b150f59c7d6cff9ebb18a4c72. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/USNLR2201127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fec4b219aeeea6f4f629db25cd6703a8a05a41f30bc5e246cab03085aaf9789. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/USNLR2201128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb694b79bf1b17d9ed12b6a852743f616d6e575e493a18e8cda2b610aa1bfdea8. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/USNLR2201129.
Batman: The Caped Crusader (Player First Games)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaef28904a2fcb3f467d35fa75988bbe7f24261462802f28df1916fccf18f1c2. 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/USNLR2201130.
Batman: From Shadow Reborn (Original Piece)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaac72c59308ead891b238e086f6e7dfc48dba044079fc28767f777a91f26100. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USNLR2201131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78eb688b83cb5e622635af0551bcec4857c2c901e7bc62bcfbdb99cfbdb16133. 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/USNLR2201132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4027544e0bd2391c9bbd1a795886843aa489069bb1e8e6519ac6568d0dd8feff. 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/USNLR2201133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb15f2a8b1c7bf8ee8151cdd20d3cb28dc1ea11c6b3aae836edef691370099f1. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USNLR2201134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f5aaf44ef7bfd02ae34bccf17780179d4176bc14a8538e0a2ec5ae178af496. 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/USNLR2201135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8bb9442325327e5645139b9c2b9a2fbee6c6aad01466887a7c0d0b80253c3b3. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/USNLR2201136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c7e0ec877b05eb483b03b0911caf4def6e6e1a8e872fabe9e3224f9e2fd459e. 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/USNLR2201137.
Prepare for Battle! (Character Select Ranked)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ea0c812c88edeedc95636cd848cdcd06cfa9b0f9f0649f2fc7597c866c4476. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/USNLR2201138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659bb247dfdbf0b1ca107a28630e3d2ba96452439ef3a62b27aa87e2282b1235. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/USNLR2201139.