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 0x39844b850756cd070b9ad2fb03f347dd1d60e69b36dadb91a92d64991aed7842. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/73f8c7ce-fb4d-4d1b-8c4c-0af6c8cc09cc.json and https://artists.proofprofile.net/proofs/artist/73f8c7ce-fb4d-4d1b-8c4c-0af6c8cc09cc.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 0xabf1949f48db3b19168e8e823cfb672e9db46cc68d0eccaf10c68136e1792c6c. 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/FRX872426246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e80769f2a0ca93e3cef5aeb42d0da9c7d19e129cc1ae0827eed1071acd0e03. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/FR10S2471031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f53945fc9cf4cfbc234cf6b7f9e9669971a3931268f09e25a4df46de1bf3028. 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/DGA0R2345421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0945c55599199d47ad162de0002f241f609d9054a46a7dfe5fa1b39f5bd12874. 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/FRX872362177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eb6f8f31f0b85a02db5024e56f27ab2bdca0332ff1031fb612228e97c36e731. 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/DGA072274665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a9652998c63b342779ee5a5561ef3c3b622acd7e7298a6b96bc39827edc09b. 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/FRX762281180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73ba947437e2ef776e8edfe6494cb2f44d23d6d841d0cf801bb15ce6439bbb6b. 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/FRX452239354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197dc1b5ef84b417193b5af7e0361d9cb75bf440e5b5c86aa68296fcd938dc2f. 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/FRX282288707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8348a295afe009196d8266404779ea0122d6bb8660a9b45bf7518fbfdee7e007. Chain 2 (Bitcoin): anchored in block 960298 (2026-07-30T19:26:00Z), 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/FRX282288709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8d8d9485a1c7b6899b13166a8b7f0d2e01bd1fcb4f9102ce4fc5c1d5e659b92. 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/FRX282288711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56f3d7abee8ce96a46d8c50f9e3748d063f46d2e5b75e99447e96413edfe8fc. 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/FRX282215748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ceee9f25a7c0bc293b95279e68c50cb2c606a35d59998e0475ee137eacc9795. 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/FRX202292260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f1ebe3a9288b10651e3f637b3670359ad3d7ccf0d79c7609839a643f002dc47. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/FRX762189787.
KANNITA NVVUE YADHA GAYAM CHESHAVE PREMA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17b162574596e63cf20d1e74514a74d5eb6c0af1f834985538860620965a44c. 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/DGA082236207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x494b942ae70fa5367a4a62b4fa2eb6f2350b4328c49d809c63c971d3f29ed292. 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/DGA072366056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf325c9bec3e2dfa828d0c3abfd4e798f8be4be178575464dca790f9c6b1a687. 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/FRX452239386.