RC, R/C, Rc, or rc may refer to: Science and technology Computing rc, the default Command line interface in Version 10 Unix and Plan 9 from Bell Labs .rc (for "run commands"), a filename extension
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 0x3161082777ff0e563e852df52dff9fd14ef087b2ec56adee41be06e2602f8211. 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/eae288b5-2348-45be-9ec3-26e40661abd2.json and https://artists.proofprofile.net/proofs/artist/eae288b5-2348-45be-9ec3-26e40661abd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
RC - A Sangre - RC Vs Lobo Estepario 2020 - Live
Minutazos Vol 7 Freestyle Master Series (Live)
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 0xd99971bc7ced0ed6e5b869e7b165a87b47958abe27fbf439f3f88528b507dcb4. 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/ES71G2330161.
Minutazos Vol 2 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34563024bff5be3c1a4fb7ddef14341cec4be225bc38d895f4d1e4342f2cf21. 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/ES71G2328908.
RC - A Sangre 2 - RC Vs Jack Adrenalina - Live
Minutazos Vol 11 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1066f3cce9878b62cc21ba65309a2bc3ca20ec59461487dcfd49822b329ffad5. 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/ES71G2332857.
RC - A Sangre - RC Vs Rapder 2019 - Live
Minutazos Vol 9 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd349fac433921af72e1e4b807b7aa3bcea5149cae51c409bcfafc9c4c4d689c. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/ES71G2331456.
RC - A Sangre 2 - RC Vs Potencia 2020 - Live
Minutazos Vol 12 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3ca0259977d3861db5ae8d8cdb91c39bb7dd69d6140e482dc64374f94bea992. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/ES71G2334708.
RC - A Sangre - RC Vs Jack Adrenalina 2019 - Live
Minutazos Vol 15 Freestyle Master Series (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1485023ab6f532a46e350cb5f7507cb48d2870ce084b5ddae09c8836f6cfcc92. 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/ES71G2336218.
Rapder Vs Rc - FMS MEXICO T3 2021-2022 Jornada 8 (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbe081fd4bc51ed4f7b53d636fc8c5ace58340a9fb7c37b7570a6a1a77e8ffe. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/ES71G2246425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44b8b4492ca75af8ddd38eedd7c95f4e9f44281cb7c636f1cedccd4af2db9203. 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/ES71G2246431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9bc0e4af16c31b9b590b4f07e1ea98c96f8ac0a2cf9d68158fd1f3e53bf402e. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/ES71G2246432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7204a8f5b91501fe8c7cdcacf71ca4dad8353a438cbc83f502f43461d232c91. 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/ES71G2246435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3323aa84c64f9bb2e43ae7c277ea5f1791dc42d4aa13e481b5aff34413c482d. 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/ES71G2246436.