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 0x9e96d31c33134eab33555fa016d6feb3341c5b62dfc047463a53f1f96a9839aa. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f04c0f1d-aaee-4de5-b4c9-014efeeaeeaf.json and https://artists.proofprofile.net/proofs/artist/f04c0f1d-aaee-4de5-b4c9-014efeeaeeaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tor Hat Chere Diye Bangla Sad Romantic Song
Shesh Prishtha (Bangla Sad Heart broken Song)
Tomake Dekhte Icche Korche (Romantic Sad Song)
Bristy Fotay Tumi (Bangla Romantic Rain Bristir Song)
Bangla Sad Song (Take Onek Beshi Ghrina Kori)
Kare Valobashli Re Mon (Very Sad Song Bangla)
Shukher Ashay Chaira Geli (Bangla Sad Song)
Tomar Ami Na Amar Tumi (Broken Love Sad Song)
Pagol Chara Duniya Chole Na (Bangla Folk Song)
Sua Chondon Fuler Mala Krishno Ailo Radha Kunje (Bangla Folk Song)
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 0x41e0809b5cb76e0a28bf1c2cd84b4906ea09285f172407e226b54d4770fc4e88. 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/QZES92248222.
Dillite Nizamuddin Auliya Elo (Folk Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1412e34497b2920688aba7293851c6863ca1716561271ca9688b528fc814b57. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/QZHNA2280319.
Neshar Nouka Song (Bangla Nesha Sad Song)
Bangla Sad Song (Ami Vule Korechi Tor Mon Bhegechi)
Best Sad Song Bangla (Chobi Ekecho Moyna)
Best Sad Heart Broken Song (Ovaga Kopal)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5f5c9dedfaf7341476856ff4e2ffc21e30b30f246a4a7da929d589e24069eb. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZMER2201376.
Best Romantic Song (Ami Tomake Chai Shudhu)
Je Jon Premer Vab Janena (Bangla Folk Song)
Sajiye Gujiye De More - সাজিয়ে গুজিয়ে দে মোরে (Bangla Folk Song)
Best Islamic Gojol (Allah Tumi Oporup Na Jani Koto Sundor)
Islamic Gojol 2022 (Janina Koto Sundor Tumi Allah)
Tomay hrid majhare rakhbo chere debo na (Bangla Folk Song)
আমি বুঝেছি তুই ভালবাসিস - Ami Bujhechi Tui Valobashis (Romantic Love Song)
প্রবাসী ভাইদের কষ্টের গান (Probash Jail Khana Bangla Sad Song)
Tomar Ghore Bash Kore Koyjona (Ekjone Chobi Ake Bangla Folk Song)
Baka Thoter Hasi Diye Monta Korle Joy (Best Sad Song)
Sona Bondhu Tui Amare Korli Re Deewana (Bangla Folk Song)
Best Sad Song (Premer Name Shopoth Kori)
Keno Piriti Baraila Re Bondhu (Bangla Folk Song) Best Sad
Bhromor Koio Giya (Vromor koiyo giya) Bangla Folk Song
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa10009bcb10b5e4c693f93c0dd116916d256bf7987633af69bc435566f6f13. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/QZRP52211506.
Dili Valobasha Kobor (Best Sad Song Bangla)
Kosto Jomay Buker Vitor (Heart Broken Sad Song)
Kosto Namer Jala Guli Kaday Amake (Sad Song Bangla)
Modhur Kichu Somoy Je Jibon Ase (Ei Vabe Jodi Kete Jai Chirodin)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3380e882c0fd0b0473dced7abb7afebbe2d8c1cb8d7e8cc6df9a9f899b9a6aa2. Chain 2 (Bitcoin): anchored in block 958350 (2026-07-17T02:31:22Z), 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/QZTAT2217421.
Sad Music (Onutape Rakha Pap) Heart Broken Song
Na Bola Kotha (না বলা কথা Sad Song Bangla) Heart Broken Music
Best Sad Song Bangla (Khujis Na Ar Amay Jeno)
Dekechi Toke Kotobar Mon Parate (Duniya Bangla) ডেকেছি তোকে কতবার মন পাড়াতে
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb8e04b503a4531b89c710f469c2b14d9cb8dc07bbc85a71a8c7d59283933ba2. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/QZHN72309447.
Maya Nai EK Binduo (Best Sad Song Bangla)
Best Sad Song (Ami Vul Chilam Jani Kokhono Kokhono) Bangla
Sad Song Bangla (Chere Gele Hai Koste Vishon)
Ogo O Ruposhi Konna (Bolo Chaw Ki Tumi Bangla Romantic Song) [New Version]
Ogo O Ruposhi Konna (Bolo Chaw Ki Tumi Bangla Romantic Song) - New Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x573e0493b5f83d990c0357fcca1984d9042286549c6b18db71dfa54d3574f372. 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/QZNWV2378968.
Sad Song Bangla (Ar Koto Kadabi Premer Karone) Music
Jar Kotha Vebe Shihoron (যার কথা ভেবে শিহরণ)
Bangla Folk Song (Sua Chondon Fuler Mala Krishno Dila Radhar Gole) [Boost Version]