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 0xf2e707247f2fb586d7a66a0ce8fab00eeb6d7bcbb5f309c4e8c2bb705188e6f6. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acf8474f-95ce-43d5-b056-f859473bde33.json and https://artists.proofprofile.net/proofs/artist/acf8474f-95ce-43d5-b056-f859473bde33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hori Dinto Gelo Sandhya Holo Par Koro Amare
Hare Krishna Hare Krishna Krishna Krishna Hare
Amar Krishna Bola Pakhi Re Hori Bola Pakhi
Madhusudan Krishna Tomar Lila Bujha Daay
Kanai Ki Obhabe Karba Bhabe Brojo Chere Ale
Nache Re Nache Re Nitai Kholer Tale Tale
Matir Khachay Bosat Kore Sonar Moina Pakhi
Osar Songsare Mayar Sagore Sokoli Poriya
Bhajane Pagal Hoyechi Namete Matal Hoyechi
Shri Shri Gour Bishnupriya Naam Sankeertan
Koto Sadhonar Fole Emon Sadher Manob Jonom
Chal Re Tora Ke Jabi Chol Madhur Vrindavan
Morute Elen Muhammad Mothurate Elen Shaym
Sochi Mata Go Ami Char Jogote Holam Dukhini
Doyal Tumay Bhajba Bole Gonar Din Jay Chole
Sun Re O Mon Moyna Duto Krishna Kotha Bol Na
Maa Go Tumi Sarbojanin Acho Hariday Jure
Amar Jonom Gelo Bhule Bhule Koira Piriti
Doyal Tumi Shukhe Rakho Ai Jagat Sangshar
Shri Jaganath Rupete Probhu Eshecho Aibaar
Sanwali Surat Pe Mohan Dil Deewana Ho Gaye
Bhajane Pagol Hoyechi Naamete Fakir Hoyechi
O Kala Tor Bichar Hobe Brindaboner Katghoray
Nishi Gelo Prabhat Hoilo Krishna Aailo Na
Shree Gouranga Prabhu More Doya Naa Chario
Sisire Sisire Sarodo Akase Bhorer Agomoni
Hori Hai Dayal Mor Joy Radha Naam (Bangla Song)
Kripa Koro Lokanath (Bangla Bhakti Song)
Kanai Ki Ovabe Kar Ba Vabe Brojo Chere Ele
Hridi Podde Choron Rakho Baka Gono Shaym (Bangla Song)
Bhalo Bashar Moto Bhalobashle (Bangla Song)
Ghatak Salar Kotha Dhoriya (Bangla Song)
Amar Songshare Mayar Sagore (Bangla Song)
Amar Jonom Gelo Bhule Bhule (Bangla Song)
Dard Kisko Sunahau Kanhaiya (Hindi song)
Maa Go Ekbar Eshe Dekhe Jao Koto Sukhe Achi (Bangla 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 0x89a242fc762e16e33c0997035928ebaf4069e128d2c590c9552bed2a36ccc948. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/INS922400005.