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 0xde06226e0fde74374d2bf672a5f70a6f9115bbe26ae1d8f0f099866124847a4f. 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/50f3c963-e618-4275-ad5d-475d9df99a99.json and https://artists.proofprofile.net/proofs/artist/50f3c963-e618-4275-ad5d-475d9df99a99.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 0x433aa14eca1e423bdabc21fd2dbb2fa7a9391da50513d76d8f1ac0fe7b920f0a. 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/INM402401664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76f1b0935cb1029c0f1b9b3f6d02528239e66feefbcf52eecccc2745071b2843. 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/INM402400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf57736f9713d08f61945915a7c6de702be73d23a98a61069db55a4c277068a. 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/INH512017824.
Manasu Nandu Tadililla Ninagyaka Tilililla - Single
Manasu Nandu Tadililla Ninagyaka Tilililla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8842cb868d0ac16dee6745bdd083841836bdc1c38dea18e597220c5940c2efa3. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/INM402303357.
Chucheedi Nanna Kannaga Mucheedi Preethi Mannaga - Single
Chucheedi Nanna Kannaga Mucheedi Preethi Mannaga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc74fb5c62f404c025fb280ff9ec055d71b35b26b4f600f670383d0d153812d. 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/INM402302924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f54ef39342d41d9b68254aa34f79a7920166e355c2faad439c9283fb6b01f6. 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/INM402202058.
Byadantha Dhudi Sirivanthana Kodi - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83dc1628279e952a07d394cdaed639713d31b96b15ad0ea79dcd3be462c21577. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INM402202038.
Hacchigondi Harishina Thorisidi Masana - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa33e568d73f12c3eb33793e230b019c24943e0814b9cfee0419a87751bee3b33. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/INM402201573.
Kannamunda Gandana Kaihididu Daatidi - Single
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4db5a6b75c4db26b1490edbed14cdc034a8bf2b59f6d4c233b3d97035515eed. 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/INM402101647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff6c6815d1bb378c28ac43deb9824240de9f57130a4113add0fc13757d3fa8a. 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/INF392200047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2bbe65caba6e428e914d926b9fefd83d364762f0ddc8aaee0b477357baf8c04. 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/ESA122485813.
Kotta Mata Muradyalla Bitta Doora Saradyalla
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61d8df6fda12e95ca3fc968d5d140347f9a1ca497cff01c1ac57a619476c1334. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/INM402202039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf5cd43775bd51abe87d9e3c84e15b6a30f000db79f739d4b0dab78e90d2f84. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/INM402000194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a2006162dfb89b07ddf07432a20b383eca832c221f7f4ec64a68ec2bec9f0f. Chain 2 (Bitcoin): anchored in block 960155 (2026-07-29T22:13:32Z), 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/INM402000163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x381f5105420f48e74cbe9a77b636fa093b17641c6fd0df31a8c290ce69664d4f. Chain 2 (Bitcoin): anchored in block 960407 (2026-07-31T13:26:30Z), 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/INM402100681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc17fa61ef59aac66ee2275d3d6a8c1216c02723eaea13963b5fa7193f2861f1c. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/ESA012428387.