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 0x004171c0b3f34cf5204432139ca91d9c590432a4e2b0c63c64ccbf93f2f4c57a. 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/26bfbd08-8963-422c-b97a-399818e81448.json and https://artists.proofprofile.net/proofs/artist/26bfbd08-8963-422c-b97a-399818e81448.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 0xdf82e4e577be4ba22dfb992c30a86d521fe8d52182d53453d55cbc6b18f0d933. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/FR59R2274687.
Uth Tu Hamar janaja jahiya a to Baraat Ge
Mehndi Rachai Jaan Dilwa Ke Khun Se (Maithili)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa41b091f443cd202cf17d678ef0dfddb435c4f0fc6539281a21151e72fe2bf79. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX202280040.
Chhiye Yadav Ji Ke Beta Goli Maar Debau Tora
He Bhauji Tohar Bahin Bejor Lagay Chha (Maithili)
Jay Chhi Sasura Ge Jaan Lale Pyar Ke Nisani
Jab Se Sasurba Geliye Jaan Humra Bhuleliye
Chumma Le La Raja Nathiya Hata Ke (Bhojpuri)
Tu Ay Bra Hot Hot Lagay Cy (Maithili Song)
Jaadu Gajab Ke Dil Par Chalelau (Maithili)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96efb58b1f29f2ac945022b2607c3c1fa954c80452e18b382c8b68874f74e709. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/INS7A2497294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280da57bd18238bcd30895a24235840ab5b5731f37335eec0ce31f5cfebd089d. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/INS7A2539949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b3b1216861e1e6c74770d87eaaf080277a039cc830ed16d4a168736ca80ac1. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/INK942300698.
He Bhauji He Bhauji Tohar Bahin Bejor Lagai Chha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6639370c4b094824ea2f0b5e3e9daf942a102103b38a7e78f3d5ccc9f3ab2bab. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FR96X2422282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e9489ff3d4983b905dcbd74a926243e51d73c2008e473e9c93653a0b2077f7. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/FRX282427299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011b3214b0b81f165510868a7424fc52a3b4cb26ecc067a44d7d2c62e98209a5. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FRX282462101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb08a2307af9856d9cc73ed5c3ce5ae432db3e4ccee33ce587b54acb9670eb8f. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/INS7A2638604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6d9d726ac30d9e3a81bd8ec8a17c4a348e80bb41f8e0593b393258cd8decf82. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRX282492687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af9d853070822f8c72655d8c0967d7dc4ad049c38b2f01913860aeb689b0b56. 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/FRX762476288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d5cc456809d77495841f7ef34d8ca3b2e3ca2082c661b1d8c3ed159d76e4ce. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FRX762476283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb8d97749283a3382110dcfe0850868bcb1bcd9de9070624425b72da5f8c6fe. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX762491358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ddece1cd55685bbc5702bf45ca32ef2e856ffdf686012f0d92c874e279a6763. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX872425956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e960ba441e7d071423dc5559c1ee546f8e87049068d4850ef6a42e9fcd3f7ac. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX872444665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061299d9611df9ac1fe511362f12cd38e8a84c9b44c28c38480e8b2027956f96. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/FRX872446245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627c987da49df99cfecff3d58a243745781fdca864cb6dc9705aeddbee152073. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FRX872446275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a2f04345c37da7e7ac8804d0f541e34b37ce840acd40427debffe3e033729d7. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/FRX872446273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e39fcfe2ea12f9f898b995b267fe46d6fce4547040d325790c33eadd155ada3. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/FRX872446290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0d9a1c256d1cc6285d711481d61c8e77b910310358f5b5036c766e02f2d3fff. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T21:10:13Z), 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/TCAII2486800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa549e52f921fc16c07b5cb45f9af3f1e498cd833689f11cb2a3f66838b28875e. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/DGA052404488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146b88bc8f6dd26af48aea6be099a92e993031bb4c5f27fa7471816551d62252. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/DGA052404499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c1c02f27828574cd71d257852dfbe3fdd459284b8c50fc428eeaab5bc3a6927. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/DGA052404501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc666af944457204348abf1c4cfc53fadfb9d270aad3b35e704d3252cba3949. Chain 2 (Bitcoin): anchored in block 958529 (2026-07-18T09:21:41Z), 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/INS7A2648023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80a419c4eb86607aa6291d4162e116065576a04ca21121043d2c407263fe5453. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/DGA052443230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1860297400b27e62134feafd198379b5ba58afbddba51b8404d36b1b15ff7aea. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/DGA062465401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1efe738fb373ffd7f61bddbb68fef26f8c56642d4cc5f320710e42efef429e59. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAIL2452423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6903fe0a4c5267c73ecb91a0e80e9806146d8dbda1b8b03ffc745f68cfa27e2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCAIM2452454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac325170b53af8f5c0b32fd04ce2a3df96e89603d450d5c4c479167d0879a72e. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/TCAIL2466357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0438407ad1b30f6e40f0cfd5ed246331793d4f436dcb852e73d73182b3e5267b. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TCAIM2466316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb09d9c5476b283cb78c0f792d73435d6781b8ee7793854a8e5b03f7afa0f2157. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCAIL2462466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8dc989696ac399dcf757e81ee4ae9d9cc7be544700c031bd23dc63fc0186e5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/DGA062496988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2614cb096fe95818458bcca1799ff320a8f9a298a6fcb8b7a398a6a7e21f3e1c. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/DGA062496986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa67ac5558ce85848c6b5e0c9f2b3c482619708f6183ae4feb41452b2446d3d. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/TCAIM2471245.
Photo Par Bhatar Likh Ke Status Laga Diau Re
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac0366d2f69b806fc0d93267ef0dad0dccbdc90e9781d51be6e462cf85a7db3. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/TCAJQ2590376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b69e6886d81aabc46baa0d551fb6352c4e1438b3adc07a43e2068442af295f9. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TCAJS2573034.