Ras or RAS may refer to: Arts and media RAS Records Real Authentic Sound, a reggae record label Rundfunk Anstalt Südtirol, a south Tyrolese public broadcasting service Rás 1, an Icelandic radio st
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 0x1d00bfe438ab7435cfad346267d09824fb823d5665b6e014a0bd21cf99d5edf7. 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/c2a07a6a-99cc-4101-aba8-1557513659f8.json and https://artists.proofprofile.net/proofs/artist/c2a07a6a-99cc-4101-aba8-1557513659f8.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 0xd9d4bd5034647016fc2530f94ac8a52b0b2240ddc00a4bd09622f12baf9685fb. 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/PLC061907500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8126385fde74584354e3b6d8b379d2b2be3aef6b7389bae3788a9e4d09b42e6b. 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/PLC071505019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd1f3af9aeba076d0689bff10b86e60c9a9f81c7ec0c3582cfcac7431909adaf. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/PLUM72000506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ba57ba99c6677cdbd00fbf7fe4672b02489af1505a826ad21e726af641aa3f. 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/PLH181300152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dc72971fb6b4ed14ae170eacbe4270ce6b60f35d5ae5a866b21936d7449fec. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/PLUM72200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6bd097fa076e72a26c28fe868f9d26338192c5076b733132b94f45bd17611b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PLC071512005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49dc72971fb6b4ed14ae170eacbe4270ce6b60f35d5ae5a866b21936d7449fec. 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/PLUM72200133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c0cf7f55f56e66b14fc7ea6d8c505e59f88c392f27c9b603a34c9180c3dda2. 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/FRX762128750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c76d038f2d6161bfdd170edfba90e43aa35cc4962404fcc5c17df982dd05166. 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/FR6V81548774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4135ab16536bf94af36b1f45e187d8201ddee204d48c37afb0cf8760fefbb589. 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/PLA681601937.