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 0x6027ccfccf50bd8e8edd3f3ea03cdd03879e59c51b04074fb05e7eb0aa4e036f. 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/e794119c-f27a-4f98-bee9-702b5d867c2d.json and https://artists.proofprofile.net/proofs/artist/e794119c-f27a-4f98-bee9-702b5d867c2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Changu Changure (From "Atharva") [TAMIL]
Changu Changure (From "Atharva") [MALAYALAM]
Changu Changure (From "Atharva") [KANNADA]
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 0x55e67f4e0798d0393baa015dfda6a308809f87a7fca063631f8ca16a32c0a154. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/INS182301412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef78db8bf1c631b22aa1db9993b1b315521a7b412f4fbb80be1b4dc93c26acad. 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/INS182401426.
Ringa Ringa Rosey (From "Atharva") [TAMIL]
Ringa Ringa Rosey (From "Atharva") [MALAYALAM]
Ringa Ringa Rosey (From "Atharva") [KANNADA]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbfefbfb169ee5d6f013061c32bdc698bfd53d73e02cec82f3fd0b2a42aae563. 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/INS182401183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55e67f4e0798d0393baa015dfda6a308809f87a7fca063631f8ca16a32c0a154. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/INS182301412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54890ef993e52dac877e00c855802ddafb57f316a0e8bace71113df2727100a. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/INS182301411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bdc87e603f2112929cebac89f105567de2c6db7678cbbb0f546e38b1a6695a6. 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/INS189710281.