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 0xe004c8ce4aadab6a490780d168a0204621c371b4881d6507b6bd26b3d237d55c. 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/7bf36245-b2d9-4f9c-8db8-ff90a50e7ddf.json and https://artists.proofprofile.net/proofs/artist/7bf36245-b2d9-4f9c-8db8-ff90a50e7ddf.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 0xec12f0ecf24baae1f9a6502b45c5d4e278dbe065204caa14764dbb670e7c35d3. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/INT281702724.
O Mast Najar Wale Teri Yaad Satati Hai (Hindi)
Aayo Sanwaliyo Sarkar Lile Pe Chadh Ke (Rajasthani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a4c2486da80c66f0fc8cb44cb6a28884d1ebd9d83c6ecc5258c56ef0d8fba0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/INF172003104.
Ankhya Ro Kajal Thoro Otha Ra Lali Ji (Rajasthani)
O Sanwre Bata De Mera Kasoor Kya Hai (Hindi)
Darshan Karo Or Pujan Karo Jake Dwadash Jyotirlingo Me (Hindi)
Khula Hua Hai Khula Rahega Khatu Wale Ka Dwar (Rajasthani)
Khula Hua Hai Khula Rahega Khatu Wale Ka Dwar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99dd7b7deb27937775e70d192077285e6d6acc8325dd0b961d1dfb082bc5d26a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/INF172003114.
Kanhaiya Yun Humse Badal Kyu Gaye Hain (Hindi)
Thari Nagri Me Sanwariya Nachu Dono Aankha me (Rajasthani)
Har Dam Bnaye Rakhna Apni Kirpa Ka Saya (Hindi)
Suno Sanwre yun Naa Sajdhaj Ke Baitho (Hindi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8054276157e0eb3280b7e3ab01d979afd3edaa503a9d67a884fc1a624502f79e. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T15:22:45Z), 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/INF172006176.
Thari Banki ada Pe Varu Pran mahara Sanwariya (Rajasthani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f810f68f7ee5098eff33a54606233fa0861b4f1499e360dd3a2e3a4219c487f. 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/AUC6R2147287.
O Ji O Mijaji Mhara Sanwariya (Rajasthani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1c7852d9486c7aca73945d0b3084f571c2f32947206251f8866b096d5291501. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/INF172023226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61b56de46afcafdc8c3b21133a799cbaa0f3129da54738c9542bbf11a204be8. 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/INF172023846.
Sanwariyo Sutyo Kachi Neend Me (Rajasthani)
Sanwariyo Sutyo Kachi Neend Me - Rajasthani
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b173e138b6594b61c53bc1aa681d254309cad20ab809a13ae42369e0a3c713. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/INS7A2243247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3d008d338f5f16fa0527471edcffcce9176a684802268b2e3de5cacba0f718c. 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/INV582007096.
Mharo Gathjodo Baba Shyam Se (Rajasthani)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe1f06a1af1561e5a98a36295f8e5969408a82159de40796a70ba7660689627. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/INV582369327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a296b7f0e2c318548d37ef64a2c935beac96f7090ef72eb643daa3ad3c77e8e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/INV582371818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd61b56de46afcafdc8c3b21133a799cbaa0f3129da54738c9542bbf11a204be8. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/INF172023846.
Dori Khinch Ke Rakhije Yo Hai Baba Ko Nisan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9259d0d640b29a4aa3f494135bf38debfd27c2c582d1787706033fb750d1562. 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/QZZ432402325.
Sakhi Dekh Shayam Singar Hui Re Me Deewani
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x868709e854ba921c1d36cc48b5ba27b49cfd0cc19edb94838e2fc10935b023b6. 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/INA5B2500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8773850c585ececdaefddb7ece120946af00aecc82f1c2bd25d50a8d9ed21d9. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/INF172041425.