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 0x259b813fa71076df9274984688f1a856dd2522083836e1e380c8a27410d7d06a. 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/4eed5560-fda6-477d-8778-d4c5d25b3d36.json and https://artists.proofprofile.net/proofs/artist/4eed5560-fda6-477d-8778-d4c5d25b3d36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Kon Kanoner Ful Go Tumi (From "Kheya Ghater Majhi")
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 0x86ff8ac06419be955896fe65e57147ced01f50f27dfa2d5ba71a5c70077661d5. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:55:08Z), 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/FR2X41981018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f68e938d90d9e2cd622e3dcf25033e030e3e3385a5bc27ca12023d3828a7321. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR10S2232743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0ca1c4068c812d8936ca9d92cc581a61880caedac0d79a66497d4d80cb17c8. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:36:00Z), 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/FR59R2289868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be612ee55059e8f58f9ed9bd501c6574357b0bb3d83d1156a24841ec8d55065. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/FRX282222909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x137a9e4d3c6b8208bf79c9fed4415f371a788dfc3c5f39187305bc38a9eeeb37. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA062204266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50beef3410a14719240c392aab41ac58fc5fb7f9b395988b8db883a687dab697. 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/BDA081701351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cc7cd35d86e2e8376022d350c107f72f1f9ff7fc9da77d3e3e8680bd3523fa3. 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/DGA062267817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcab2b2a6f910f7a0d9304c74afed806cf25f69afbf8d174cf5bd6cf69328fa32. 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/DGA082204804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf44f54680fbe3f8bf6ea43dd5455e26736ee119f1f4a3e195d1545d8d554d2b0. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/FR10S2328874.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3326a0711dc80080571fecf78063f5d52e786f5d41ed2ec2c6ad3910b55c57af. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:52:57Z), 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/FR96X2318802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd223f2ba1a47bebbb71be1cc5ff8cc7238b5ebdf99b65f44f3206cdd25b781ae. 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/FRX202300867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3ff94a9de240dfef3f516a778e0048bf870ac057fcd14e052794b20e8a9397. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:50:43Z), 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/FRX202338910.
Bidhi Kan Korale Tari Sathe Amar Porichoy
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2bed4d9f4819b569ea72cefd97eddadce61900e8b4d53cd83dceeafbd87e10. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:43:16Z), 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/QZZ662441952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205f0c8697301c211e02d416a7cd461d0cddd8b95bcc4358474365622fd23020. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FR96X2449960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a36bc9268991082bfe04de284fd21ea43edeeb476814031d7137f6c018f9182. 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/QZZ662489910.
Prem Mane Kosto (From "মায়া -The Love")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3767047330d2c35c5c61ebf61b85cb02357914a7a3f943f1c5e50895bf3c0495. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZWDW2447418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1b978702c2d5d793c725d3e255704e797b5886073a90233ba408f65b55a4a2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:05:52Z), 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/DGA0Q2411762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71642933e367ef57fc462b60dd9fdb07b19b98b5c55da7a96ecd5ac109c86cca. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BDB081701351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062e90a0c5b7012df5ef76d382430ddf7a6ed19433448eb57f1ec6371a7e39a1. 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/QZN882421443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc175e6b76838781d118516d84b0c855cee0bad7f5c7837477ec518dc1df2b200. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/FR2X42526529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9830926192d407189ee4c41b1c745bc6ad41eed16674e4c1dc67a120d09c5feb. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/QZWDW2550174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fa9346d073dca6de00a648c91a9748694d93888c7325e088147d66213ecf8d. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZWDW2579172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc236a8b73d0b145ee92500b60cb28cea3e35c66777dcf0cba099b6d8c139639. 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/BDA1M2500461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76ebf70ecd85495cfde8b96ca883987bcd307e3c1426de78bf76f5042eb4d532. 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/BDA1M2500737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3767dff7010e0454cd8c1938b6b121de8086f455809955e28d01bbc3a1baf5ca. 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/DGA062500558.