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 0x1172872174df9a65da65b8a8853373a17c1d286bb19bf12c50a384ed6327bdfa. 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/974897c4-1276-45b3-b092-8fad6d1b3b74.json and https://artists.proofprofile.net/proofs/artist/974897c4-1276-45b3-b092-8fad6d1b3b74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Best Qawwali's of Badar Miandad Ali Khan
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 0xe7f8e147ee5d87f75177384195e2c24f9e5e55abf98bdeb994acacbd4e539d23. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBUQQ0089701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329f65c4fb56cbea1f01e9d976ce421e05e7bb49c295fd2c52716df11f9ccec1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBUQQ9883901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63eb60391f25aba31cfb705027a0f08e9166def1b747e9623db4f4ea73de9a90. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBUQQ0001903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda828df083ee0aa30f024c609638117a0c62d8730bc5164a1f11e695b33f6940. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/GBUQQ9886901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5a1ced098f673de06b0ad99e2468b9df89606cdfd2b2ea02210521c2c2149b9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBUQQ9884001.
Main Aan Naukar Sohne Fareed Di, Vol. 38
Jashane Aamade Rasool Allah Hi Allah, Vol. 39
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a9254d848e5867124b53b232d9a15d213cd0fba21c4844c0e1190e6bb97534. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2M0101032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b5f15834a747c3386e14bd983dc64f4a507a676e215d58d5b6f5e475e2d7fa0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USA2M0102032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b60e486c66da7d19f83d705af1433b45fd0c999d8657f5501811944a50a585a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USA2M0103032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x182693ff210e2db916b3d2244b2bf8ceda22e1ea554486168cc1e142ea1776d3. 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/USA2M0104032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6555c245b1aa7dc622849cb7ab0678ea185a8cec838bc1b900bb65a896f0d4fe. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USA2M0105032.
Pardesi Sang Neyon Na Launa Vol. 5 - Qawwalies
Farida Turiya Turiya Ja, Vol. 9 - Qawwalies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72c89558be6debf218cfecbff37e7d1801c1cfc3edab81e4805088c72bec75e. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBUQQ9884003.
Gal Muki Na Sajan Nal Meri Vol. 1 - Qawwalies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x329f65c4fb56cbea1f01e9d976ce421e05e7bb49c295fd2c52716df11f9ccec1. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/GBUQQ9883901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca2c71a27910700bed1126036a2e3b12f5a1fcd1b2858b92429211bb771c9d88. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKRT0503203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ffcb9ce55c3852a86c14ba4b7fdeccf181cb0d26fe72817744086d3167a916d. 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/GBKRT0237202.