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 0x4af37e48c8904fa702db311df1c7dbe8e80dfeed891fd993f56271ecfebe2008. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b9e501b-50fa-45c3-a1f9-42fd2e6636d9.json and https://artists.proofprofile.net/proofs/artist/2b9e501b-50fa-45c3-a1f9-42fd2e6636d9.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 0x2d09f63291e378763485bce86dec539ec9bce5ffc7194e52024c5e14bd3a1c5d. 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/AUC6R2182335.
Facebook Par Chhaure Se Chhaura Set Bhelai (Maithili)
Jagat Kahai Baklel Hay Janani (Maithili)
Beta Karay Chhau Maa Gohariya (Maithili)
Chaan Sang Holi Milaan Karbai (Maithili)
Hay Durga Maiya Fais Gelay Naiya (Maithili)
Baindh Lelau Rakhi Bahin Tore Naame (Maithili)
Chaidh Gelaiy Chait Mahinma Ho Rama (Maithili)
Gouri Ke Lalna Ganesh Vandana (Maithili)
Tribute To Sonu Pardeshi Bejor (Maithili)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe133bbd17f8dec27c8cead74878cfd1f341c09dfb0f58da1f8ccf62e151fc362. 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/INS7A2261600.
Baba Aahi Lag Dukh Ke Dabai Chai (Maithili)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd00bb0c48f74393d9628035be072b4dad8483a1e75ab332b707c7affe240df68. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/FRX282563301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde62bc95264ec3207fb960b25a17930a9b4490f9b191aa0b1ca30d9bfbb92359. 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/DGA092317095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde62bc95264ec3207fb960b25a17930a9b4490f9b191aa0b1ca30d9bfbb92359. 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/DGA092317095.
Kahiya Hamro Wala Gaana Trend Hetai Yai (Maithili)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e7c6e562cdb4e45fcde74e706c086632344183b6fd2701dbff132f6bf3100d. 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/QM6P42467780.
Rahi Rahi Muh Phula Ka Bhagai Chhi Nahira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50dc78cf176b44a04f65eacb9ae3f2c6a0adb3529fe2f4d4340407db5e649321. 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/QM7282428874.
Deya Charan Raj Maath Yoo Bhola Bhandari
Sajal Bhair Mithila Me Bhawan Maharani Ke