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 0x59a973d76dca22f68888aca17e783a9fa6fe43e36b7a04c90e54a9a1cfa3d93a. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c93c67cf-ec0c-4c76-bb6e-724cad0ef3d0.json and https://artists.proofprofile.net/proofs/artist/c93c67cf-ec0c-4c76-bb6e-724cad0ef3d0.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 0x442f35409ecd1f469179a99bb02321a497b2c2adc7a2461baf0b64ceeff9308e. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:46:31Z), 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/QZMEM2402494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7a16dab65b71cbd239d472148758e8c4b80c5d0aeb91527d089b8803e5b58e. 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/QZMEM2402495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1774ef296e2bb4c7590963d5efccc444ec88635b7932e5c674f9bced3390b1d. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:19:00Z), 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/QZMEM2402498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88507b6799c8e05e78c2c351eaf33e7f2fa9daa3717915212d5b0f788e6f72a. 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/QZMEM2402504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9784a2f3c3b15a6f43bf6d59a406abcfdcfddc49c945ff687808165a5ec4367. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:20:42Z), 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/QZDA61991494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4aeae49dc8be02d09840274ff4618409ca5b834cb652b2033a27c2aa4f93089. 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/QZDA61991495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x690cd40c2773736c58704b1c3306922439cc931cbb298449e702ca39fceb23a0. 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/QZDA61991498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61f37822395959d86a2b2a9589336498d4e2293e11f7e618b099b5aa2abf6487. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:40:12Z), 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/QZDA61991504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c43813168441c1e271828ca9c81fe1220566b50c0a3515e690da650c223895. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T20:24:57Z), 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/QZDA61991505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfed2d9a864525e5772002760d2994a58d64b5d928d182e66408027e5bcff0c61. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZK6P2438413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829398b94fd99c8d547dcddf346f3ed7f14b427623ad6adbface50b310754898. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZDA61991507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ceac2b9fd9633e7a11ff2f4a7c8d526ab80ddc323c68a5032cecf7727d6525d. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QZDA61991508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe639f6cfd7d8752a5efb662f4fab5df4d6f4ba26952a1444a114c010a44abf53. 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/QZDA61991509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c4d96ed77740d9d34a5e2082b2032c3f5ae8c6072349792960d9e7c8ea362b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:34:25Z), 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/QZDA61991515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a41ff0f7db871beb3065b6cc5813a71d139fc137345dd05c183e522ee7740a. 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/SEYOK1219684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6df93066fc1c047153cd5feaef366a9eadb9a454dd0863f44ba9ad5189653d2. 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/SEYOK1219688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41355ea366cab78c98688632205b0fb3cafef9c524f543dd7f53ce8003a539c5. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SEYOK1219689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d44fdbbced4f3868e3444e0d41ab49b56670dee4bc7726b0e71662cc172bc79. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:06:49Z), 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/QZES61918889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec70a429678b41a5fdd95093b4b2fe5e078fe5147da28f6846e37faccb78513. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:22:33Z), 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/QZES61918890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51fa3edc1d1e505e575ee42113c1f8da0efc15e6b6e7e52d939c5868b0bb3045. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZES61961424.
Інтелігентний панк рок звуками дзвоників
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0f81f09faf741c8b8d6caac773ff61849705d890989d214436ee5dcd98b7c87. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:56:53Z), 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/QZHN62152987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81b223ee1cf165996b947b98b442f2ef77a0f5009dd88a08023c4d78fe2939b1. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QZNWR2272175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce32cd584f4224b30979ebdd714cc553ced5e76902206ce44b50575636db6506. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/QZHN42326328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf72f3f6e60f446424a039095d272dd96d96a1f9e949e4d1c1cf1fb7a69c4e4fa. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:03:49Z), 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/QZWFS2406310.