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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a7eb3fe3aec741b2c94d5006da1af21e35d151884b06a5052ecbe2f497f571. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/82df297d-abf7-476d-9fe0-ba930501b608.json and https://artists.proofprofile.net/proofs/artist/82df297d-abf7-476d-9fe0-ba930501b608.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Khoje Hai Driver Bhatar Re Bande (Jhumta Song)
Jhulufiye Se Haba Lage Fur Fur Re (Jhumta Song)
Achra Chhod De Re Loverba Mor Piya Ji Marega
Kamar Me Thahre Nahi Sadiya Raja Ji (Jhumta Song)
Hamar Bech Delake Jhumaka Chokhutaka Hai
Kekar Lagi Go Karma Karle 2 (Karma Geet)
Dhodi Par Likhabaile Chhaudi Gaaya Nawada Ge
Lago Jawani Bisleri Bottle Ke Pani Ge (Maghi)
Nun Khahi Yaar Ke Gun Gaawo Hi Bhatar Ke
Nache Ayani Ahir Tola Ge Chhaudi (Magahi)
Jahiya Se Dilwa Tut Gelo Ge Duniya Se Nata Chhut Gelo Ge
Maiya Ge Jaibu Na Ham Padhe Chhaura Line Maro Hau
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6559f5e94c2d6f1c3ba779eb771acd7d8ee9f47996d40d0ca7abc4d357768ac3. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:51:16Z), 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/DGA052416333.
Kaise Mile Aaibhi Chhouda Maiya Ho Jagal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b077700b2254e27813d0746fbe253173b22cf731128ace5c5843363378124e9. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/DGA062411739.
Nach Nach Chhauri Nay Ta Chel Jeto Goli Ge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe8d58eef5dc7d84c4cb42d06565093168e50059cc83af37074f36be52778ba. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/DGA0S2415504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1a91657c63a0bfe7731cf2bc6fc1ba3ad1adaed8562ffd5d7f1213d36a782b. 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/FR10S2521990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a1846b6244b8dde125e28810616546e6adbc9d0458f520f49491483cca668b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR10S2525744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e0f50225e92ffab092ba1283a1416ec4d93586992649685808afef37a35a14f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:01:57Z), 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/FR10S2564125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf260107be86fd51c6fb053f5a91ad590a5b250296929251dec33a8a9d2ce4ca8. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FR96X2518677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b9d75122d559a24992146bdbc98ac9d102fe204875b173500dfe4702495cbf. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FRX202535799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f96e232116361f3b8f5329d8750052259e9a4a9d42ad4ececd86891ea088530. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/INA1I2505911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f1dc296c7b706609e168bf639105a1cfa27cd742037de27fed5eb0d3c93c9b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:46:00Z), 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/FRX452579568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcecc68a930695a4d49a59e35dec719f6c10076c34e7798dec546502916c4c9ed. 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/INV582590847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1d8b7f336db1b4947ab94e4f5f5a35b721b3e931d3d1fce52b5190a155de08f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX872586177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x379e4b232b2d89b9fe143039b42f2c75be95b8e4e28d1b8ca0ca3951c2217d55. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/INT1A2207995.