Against may refer to: Against (album), 1998 album by Brazilian metal band Sepultura "Against" (song) the title track song from the Sepultura album Against (American band), 2006 American thrash band 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 0xd75b24c10e3ee669fa91a37b05be3df7913cebcb448a6aa8afad06868788c992. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/284f0f9b-f134-4178-96a1-0617a3230dad.json and https://artists.proofprofile.net/proofs/artist/284f0f9b-f134-4178-96a1-0617a3230dad.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 0xe32058786e7b4095ad3dd13638f1d387cf597ab37fa586d79346e8e5387e5b6f. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/GBMJG1613994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c36252bcdd573ec0878e3ffc331624f66c42269342e97febc82e1daaaf1680. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/GBMJG1613996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccb200fe06f80a7c8a9d66aae099d778b5cf9ce0c1aa8468a6173a1fdbf74cca. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZNJV2078254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751e176dee6591c030205b914e2d37656e49d607406d20585a563868089b9dfc. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZNJV2078255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5e1f2d2392ce36e9a0b780cc4efaa989d17ebf697f26b5933ccd56812de2fe. 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/GBMJG1820569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0535303832cdbef532c5e305519ef7cdb2af437bc1bc005685e6cfc1fad8eba2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBMJG1820570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5054711a5df677edd95cdec1f5e99e7a741a48e7691f48264b8b21f9cb9c772e. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), 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/GBMJG1820572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x693f1e56bcdc15a954aa8d088ac4588ed0e585562c2499bcdd7783177f82cdfd. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/GBMJG1820573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb24dce57a76c523edde326accd6ad9999e5936647ef1fc582ce2176dbcd1fd1. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/GBMJG1820575.
10 Años Llevando la Contra - Vivo en Groove (En Vivo)
Los Olvidados (Vivo en Teatro Flores) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10ffe262d293b8f0d9ab4ebe64aa28253933252ae98faca94f74c5fa3a32f51f. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZNJW2553790.