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 0x6cf312710fd0bda1d983c79f782d8cc34e8ccc06fc788c7df0f98ae09e24a232. Chain 2 (Bitcoin): anchored in block 953605 (2026-06-14T07:39:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/130d996c-289a-4462-9794-ae525299137d.json and https://artists.proofprofile.net/proofs/artist/130d996c-289a-4462-9794-ae525299137d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sanju Sanju Karta Maro Jivadlo Gabrai (Rajasthani)
Jai Ho Bala Dev Thari Jai Jai Bala Dev Ki
Haarva Vada Haari Gaya Mata Vada Jiti Gaya
Janu Tane Gj 20 Ni Gaadi Laine Malva Aavu
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 0x796b542b34fed079d86092180f2d98d048314695dc244742c5d82256f36650af. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/INB1Q2404374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bec80a2f4a87586b3f22f952968dcf811608d0d4767e5011be67b6613f576a. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/INB1Q2404375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf9f7d3b454cd6563613db6aba3f6a4ee4de9ffc70f34e270078e79781ca7b13. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/INB1Q2404378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8ae7358696deda9d9ad3c01e5fda21c105cf696b7a31c33341f1b87e66a4bfc. 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/INB1Q2404380.
Aadivasi Bhil Koina Baap Thi Na Dare-Ghamand
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee555b9185209b0eaa83c016f338b6cbf368c999c6d6a46695cc537084ebc469. 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/INB1Q2303399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4ccf0051ec84b7e97ed5c2c640528f6b1aa85637b44e137b4812d7464118e7. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/INB1Q2303400.
Na Padta Tame Chokariyo Na Prem Ma-Kala Chashma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba469a3368b0d919f843a8826e26d948a8a08dde553e1ca4085d94b4b3569130. 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/INB1Q2303402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f7a79d036fe53968b57fd38d59b42e1b40248226c94d1842627f772fd3f8d0. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/INB1Q2303403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8e45f09be468967e819c0022f21597e8a942df3b54a438fdd99b4553ce03ea1. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/INB1Q2303404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1267ab711d091ba5ca16b30d732bb55ec205bfa8aaca667e4413439169edb54d. 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/INB1Q2303407.
Love Kehva Janu Tu Farti Ajubaju-Kala Chashma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0579b135500de79bb3670bc942c15b4a42d3fd8dace4037968cc5f2bb9642ad7. 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/INB1Q2303408.
Tadi Ni Pidheli Avli Savli Nache-Kala Chashma
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d6033fff9c432088507e0c12a9033f4f544626571c6e8e89b57b9c1785c276. 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/INB1Q2303409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf2b8890f2e570d4f726bf7eb035ee1fe7a75b9c33e7a6711c30172e60d773f0. 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/INB1Q2303410.