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 0x1f6b216662a1e2809d53e9e0a6a47c7b020f84ab54a355caacc28573d5ee4211. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/23a8ac11-17f3-4bfc-8a9e-ff46d42e95ce.json and https://artists.proofprofile.net/proofs/artist/23a8ac11-17f3-4bfc-8a9e-ff46d42e95ce.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce7bddbd3bc7a4124b92647d3dbee3810e5651076104d9c962bed687bb15ecbe. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/AUBEC2595828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799d6ef6c4332155267551bfa6990c7c552666a4ca0725ed19b23bb0eca9cde5. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/INS7A2478543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d6aa8ddc0bbd48ebc659e5fd7d6c0a2cd49bcf210bafe789263109a1bffdb92. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/INS7A2497765.
Pyar Naihare Tak Rahi Ki Sasurari (Bhojpuri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb67ad0e1614f22ce0723f2fd809db00ab4babba4583e72a20f804e0e89be87. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/INS7A2523908.
Kawan Sevakawa Maiya Ke Manawe (Bhojpuri)
Dilwa Me Ghar Tu Banaike Ud Jaibu (Bhojpuri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c0a35e5314c88d13e224286f465a2d5ae85a71540c3ecb64e9e95fbd0cbbf6. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/INS7A2585736.
Kare Khatir Kanyadaan Ego Bachiyo De Dihita (Bhojpuri)
Sanghatiya Puran Ha Unplugged (Bhojpuri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97a14e84e110a22952568413e2c6428d43f95bbb6d28b1c790c44a5627a6b826. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/INS7A2618182.
Balam Tu Ho Gaial Gulri Ke Foolwa (Bhojpuri)
Rupwa Chanaiya Lagela Sajaniya (Bhojpuri)
Dilwa Me Ghar Tu Banai Ke Udd Jaibu Ae Maina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e10161771e56c5c82f03e431c6522e4fd84409652748f1a565b97b8b6589d94. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:33:25Z), 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/INN242409328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9364a5418c092ca63d409f82c3539a7b8604bb27e3f02cc42d5b092b06932b69. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/INN242409302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa12f718c9b61521668397f28a37a0bd87a48e66b0adc22516eddec6b5963661b. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/INN242409293.
Sun Kaike Angana Hamar , Nehiya Ke Dori Turi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac9c585d6d73c0c3173c784683160481e51a69016af19db9d22aa651e49f16b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/INN242410002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d565fa3379662a0c00f92405790dc2802390df941c8cb105ba851ce34e41f6f. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/INN242415723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96a89b2f9e175f798042ac98d3ea0ddb8c5889dae62f9702b2300895d753376. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/TCAJL2553637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88bab576274fe4d9573abb4d54cbccc7b0075a906e0e48b97c3cba76465804e1. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/TCAJR2512276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758160440fd7c1d81c50e60ba8affe54b780c70a6c3edd87ea9982bae10f7693. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCAJQ2529680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf29ae7349c8d273186ce0d27a8aee7de301e7aa5715705687e1fa1d37477c722. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:06:40Z), 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/TCAJQ2545526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974d9e924aeff07d35d4fc05b5ce0e24fc1039ec2a54632f49d7db6de9d4d6ed. 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/ING642505165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbabf94bd1eed9c36edf1247d38b7f01c429c67732fc78e0f9f22a5f4e506ea02. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/ING642505217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ecd83a2a9d0463add9ec80b3600c10c3f2f0e25a8242e9cd733c7dad980f102. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:49:44Z), 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/INL232503153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ab13ff4baf77296f6c8e4fe7337e2f975f7b602d761fa2f72cc77e54bed54e. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/TCAJY2576182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefc5b7333eb0b404e3f41219696f951b168174ac9e9806ccef039520af3c265. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/ING642507364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8a09f09e3c3b263742f384b4e3a44cec59e47514070a57fcdb4d3fcd39943aa. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/ING642507431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed5a6128b09971d2fb01dcdc4e1f7a94925fd7427ece7d1f4f5f28371339898. 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/INE182577019.
Payar Naihre Tak Rahi Ki Sasurari Se (Bhojpuri)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0191fc94f9c0dd50217de5d0023d97d015243c8be7f024e09ecfc4f468b6a57f. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QMFME2545294.