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 0xce975070a71f75034b648c81c105f465e2e8756676b2bf688200c03a3d040d58. 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/2a273e35-3c73-4934-b13a-7085eec07cc4.json and https://artists.proofprofile.net/proofs/artist/2a273e35-3c73-4934-b13a-7085eec07cc4.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 0xdfaf00f83b913b7e6a07c27d09c777a0c3cdf129514c7ce0ac6e270bb93fca24. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:29:46Z), 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/INS232000061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b4a651e69d1064433d05131ec1d4d8b107fc6740b8e20f56deacb33992b0fc4. 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/INS232000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1261bfc79d0ad99a4211ea9c05c7c41b64aba19e67c325fc7f3c74e1c6eec7. 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/INS232000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f029bb835ec73972c7c233e4167ed976da5f264c0ad784fd609e227d9463381. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/INS232000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e0d32eca269c25372f1f96af6b77e51b30292a12377a35476a985b56730b9b3. 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/INS232000066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5caef042d95cf4c04f595f3fc694abb15bc33d8bbd49b39b37a201df919ea1d4. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/INS232000067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14150f35d1ea8fed73dfa068af00abfda360d46b409db766a0f39789cd657704. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/INS232000346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abfbfc17b5a7e9021c88d2936e2fe972881e6a85efcc10516564062894af9e2. 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/INS232000348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f46244e1c537b405d7f92d785b1b416ca1e01d7dbe0568e75e7617f043f8c3a. 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/INS232000350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcc62ffba8d4d615f6cbd27e412f4767c0dc0e7cf8edc89a4fa5a0c3228b48b9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/INS232203604.
Sadhuwain Rang Lagawai Nahi Det Hai (Awadhi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc40b4d11da8e54542d8c8dce2ad8c8fc17e118ddabaea2d30a8222fca5a7a81e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/INB942435076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bbdc176a72cec1f486dd1ce156fccc4cddf56ac3d654fd0ea5536bfcc172ce. 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/QZZ432368252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7828e03a03f8e543b2ee80b8f9dcc21c45664f154266215c2202d71acdae2a4f. 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/QZZ432381394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4097e9187b17cbee0180a56b0101e90407be9374fe39e7f503c49739c79f9972. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:48:03Z), 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/QZZ432397801.