Versus (Latin, 'against') may refer to: Film and television Versus (2000 film), a Japanese zombie film Versus (2016 film), a Russian sports drama film Versus (2019 film), a French thriller film
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 0xe781d03130fdd302aba8c74e17a1a26438e785b1f39c737afe572d11407c3855. 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/4a28337e-9c87-464a-853c-7fc36f75e4f6.json and https://artists.proofprofile.net/proofs/artist/4a28337e-9c87-464a-853c-7fc36f75e4f6.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 0x9ef10327c9d9779e0a6362287223ae33115f84e7d49b6633e11f13f98e2a5aac. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCADH1780890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b594aabf59c639ee2c427d88d1d74e99db5e626960f40fdf43e2daa30fc0b3a. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAEQ2018480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa737acc0997c5adb8e9b72f76b0b2a2d249385e5986b8ce172c8479c474c3c. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZHN92159638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a12420cb4fc084ca699f2911a85f1f140e1a1b16dfaced96f42d5411fd6640. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QZDA52297596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe909aa9b50a7f8cf2906cbd920e2e7523b21230fda506b0967f714f68cb3a8d8. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZDA52297302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bb9b1750dd21c8ed832a34a8235be1521534b4ab5ccaabda9210fbff174135. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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/QZHN62248729.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa28f54a105d0ac774a75d29329eac7abc7ee5836eb49875a3b9226bf7d385a5. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/QZHN92265193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b7b748a9c06ffccc7e6c5b9242aa2efea23c2bcd9c20d554649cafd9aa6777. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZHNB2248231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7075235254a3000da2ec9710f36e16091adbf77f37fc72a3497145496c90984d. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZNWT2278690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ffe842e2066edd00004914a3931ada85b19f302a1ff0aa7c2066aa258ac801. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TCAGT2346786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eee3619813fa15918c4b9081ba7758d1e6f882c897283fee72cfc48f671e0ec. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZDA62318122.
Jericho + They Don't Care About Us (Mashup)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1ce04311d823babcb434221a2e41a8e8a79fb450605c5fa64e790bb1d6869b8. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/QZWFG2301872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd028334b5e98a8dbc1d0c03fbd5be7b35cccd7a44c7c9e958b7d3043dc77f857. Chain 2 (Bitcoin): anchored in block 956430 (2026-07-03T02:22:42Z), 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/TCAIC2467054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8fd9f31db8da60c76dd7ab4305bf8da870b178e5d64314157beab307f38ce03. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCAIL2451675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81287b116fa178455408ca6c0a0a4a82aa16e8ec209e3d6eabe5c904f06e9e8c. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/QT3F32405869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x265db3f8b560bd043af017778b707878716d3f4b951d61d8bb098aaf858ca0c1. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/QZFYX2520559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee9181e4fff9e4e6f8ab3e2c728c1ebc05380489e37f418c109f7b8e2d66861. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZWFW2563008.