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 0x34c4cac0c5172cd0bf8ba9722991b521233a266a53333a19481a41169f1563e7. 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/d9b963bc-ac84-4060-b6de-70101597d78d.json and https://artists.proofprofile.net/proofs/artist/d9b963bc-ac84-4060-b6de-70101597d78d.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 0x00cdfa2af529bab468ca644a4ac3ab6e4a3f19dbf13fc66d27a359828801b2b3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:47:28Z), 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/FRX452176642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd962f6a232ae618e8c050072f710f4be624c84fe8d086986182ce7a9e440ca32. Chain 2 (Bitcoin): anchored in block 957647 (2026-07-12T03:57:41Z), 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/FRX452176644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b2d78f5f20eb37a03f07bacb5b7f8a495c78e1199ae63da2e65ba1e3b4925d. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:08:30Z), 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/FRX452176641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00cdfa2af529bab468ca644a4ac3ab6e4a3f19dbf13fc66d27a359828801b2b3. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:44:05Z), 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/FRX452176642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd962f6a232ae618e8c050072f710f4be624c84fe8d086986182ce7a9e440ca32. 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/FRX452176644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b5461118f22e3a6b407a1727e675ed553d88f417754be52878aa8f2971dbcd. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMDA62103939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x998f2d92211ba83751ed3db25bafb89d5f00d0d8b7576e6e2e50a60261e8d78f. 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/QMDA62103948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fcc93290613032bb44a93727736e5b22adac80c28aba519f0e7e6c77cd37b6b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QMDA62103951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81897406c41a244e43a7a2b6fbe3bc51adfe668e67799bfddc2861c82d70cc8. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FRS182109674.
Düşürsən Yadıma - Gün Keçdi Kinofilmindən
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57f6b9ec0ac5fc685f7368ef3102eb38d0192583bd4daa7bcfb4b1cd387fae12. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QMDA62103943.
Bir Axşam Taksidən - Gün Keçdi Kinofilmindən
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5ede2d0b6e8234d805e063fb1a34596dd647d95033f301e0f636f9d7914a57. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QMDA62103946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2370bfb9930b5b4d7d8c31ca988c6ce5ec9975346b18ada8028627b42916bf89. 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/QMDA62103955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81897406c41a244e43a7a2b6fbe3bc51adfe668e67799bfddc2861c82d70cc8. 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/FRS182109674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55ad88d2454f134a8e2a5544f5ae6b2b621a6799db862311a5663129e96d800a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T02:06:09Z), 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/FR59R2204011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b2def76287541ee194a80513fb9a56c1d564bb6da0fe63d0edaf3dc5555df54. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:54:27Z), 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/FR59R2286937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7741f1644e4d91c353a1c86618044961d9940536acb996d4f27f33e9cc28c6d5. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:43:10Z), 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/FR59R2286972.
Pərişanın Mahnısı ("Böyük Dayaq" Filmindən)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x062ae8a96612fb255a088363a1fdac6b7e22ea1ea700240b646ac40989f85f11. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/DGA082441970.