Rafi may refer to: Places Rafi, Iran, a city in Khuzestan Province Rafi, Abadan, a village in Khuzestan Province Rafi, Nigeria, a Local Government Area of Niger State Rafi Marg (), a road in New
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 0x3d18f6dd613952d8e7408b2933e28151884b7e9e3d7cd93f48302c067fe5f918. 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/385445fd-bedd-478e-8a6f-c0f7bbd761e4.json and https://artists.proofprofile.net/proofs/artist/385445fd-bedd-478e-8a6f-c0f7bbd761e4.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 0xe657a864ba6e5a876a2fbfc537ac7b0d7b7d2fd6fe4646825320830ee721e5e2. 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/QZES82024645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f5a847f86f60ebb903350738ea3e243e203852820c940d58eb6ef9a5413a305. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZFYZ2118515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7076d557b5db161d79320cd2321ba80a05dd60962d90d872d0317bae1cfddc7d. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZNWX2091215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x892212895a0be5c5e06022149cf9aa915ea5d0907ddcb656689314da6a3c520a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZK6Q2198981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dcd24a1855adba4d747d28029da70bf4ced1da2f10456c8c3a1b0fff7a30622. 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/QZNWX2124009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b5a010b576d5a0a303c7720721bf5ec752efe8e79749f0a5f1fdb1f809276f. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNWX2190202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e55761e0c1c7b85f55bdb9af78cb8fa894cda6a3f226293da9335b0805d7de0. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAEE1969276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb2f3547598f0693548568069c1167a45b92c8d97fbc75059be1636b460cf27. 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/QZNWX2186988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a365b845f6197e8cb150c27c6724214f9360b16cfc866bbddfc341df007a95c. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZZ7L2467667.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c71f7c0f0f855d14497e4093669ab220dcd65d09d0ca6e9edc94b321e4680f. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZNWZ2155989.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3075daad930619f1d793d354dd9d7305972d34030ac6743e9747bb4678932d1a. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAEE1969359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3f696836f6b2fd4b096ad1a6304fd1585d04adf304d336957ad0c38366e5aea. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZZ7L2465171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8abd44bcb046d17a6c924eb4ef798ef4421a4d8d81d857438c517eab6c0f29. Chain 2 (Bitcoin): anchored in block 958083 (2026-07-15T01:50:31Z), 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/QZFZ72402617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d3652bdb5ece86ef0b791126e708b858120d0d013e95eb88d77524e23fa87af. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/QZTAZ2475746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf10fa6695164c63f100600505585d944f46d49e4169bc3488084b04e6cd0129. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/QZZ7L2479923.