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 0x8d3a1825ab3c559baca55819db0c5800647cb3efac7af019aedee775740ce6ed. 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/a2f0b939-cc9c-4450-a344-a35d57149e8c.json and https://artists.proofprofile.net/proofs/artist/a2f0b939-cc9c-4450-a344-a35d57149e8c.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 0xac57684acaf353e90e84e5821a4c6d459f8a7a27111cc627c4a7967a4de6b6f2. 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/FR96X1508404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc746b6adc385811f3343acd5b1d4c459994ce444c5d57f02d34541b9b514d6db. 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/FR96X1507074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0f2618dd80e2f7383707244fd3667565d9dae64742474a3a02885f2669eac4. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/FR96X1507028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0315d593e9303eba3d5cc50ea21adcb13f453a7625e9922fa078a2e95ddd421c. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:11:41Z), 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/FR96X1507031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bb9ce8cd28fb445216c2d7193aa83ecc2f524c0108f7da53d2e71fafc2e1db. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR96X1507086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112d7d9a137af367fb05fa13dbef73430b253173d4d87b36b79310b0e27c3024. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/FR59R1903037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c25910c1b2e6e05fc155ee8bced8b9b83edea8741a0c30b67b6880f25df515. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-17T02:54:31Z), 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/FR59R1903039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc3592286628decaf46c4281b86f9d99f23b5193ffdbeea7a446fd6a36cc8c5. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FR59R1903040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4d23102949babd96f2c18002edb5a108cc2b9f55b407170f40e4dc38cc46055. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR59R1903042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb88a5012a76748699d8f6a5abc97010a24d082914e3cf1a435f9345ce07167ee. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR59R1903043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa381d2e678816ea66281906ebf00f1e8b68fc712eff3485b8de38cbf03e82834. 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/FR59R1903044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d5b9b5f037b69e0556d07ba1afba7512a884eab01767cdc3fc8595ed5cdcaab. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/FR59R1903014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec93879b5e8cebc8ca0e045c06d1ba56f37b1be83c823bc304286cd4e28a7916. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:11:01Z), 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/FR59R1903015.
Пісня містера Ніхто - Пісня з вистами "Мама сказала - ні!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa323207fca6819b2f7232d7e65e43b855d4ba4e0f86b91e4c25ba9593069ff98. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR59R1903017.
Мама сказала - ні! - Пісня з вистами "Мама сказала - ні!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8ec4cf91934dd3b4f4fcd1920ee0a2cab33a3038f98aa26032190323e27a86. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR59R1903018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x542ece2546e987baf0938b05c8175d55c809ad12870e6e18a419323fec873465. 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/FR59R1903019.
Можна бути песиком - Ремікс, фінальна пісня з вистави "Мама сказала - ні!
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a5d667d0d74bc10bba93c4c2a62499eb11990dce4a7a8dd6e205bb71155e3f3. 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/FR59R1903020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x051e6743d3e8b0be60b16e08324c6dcfe8db37edca5be04999de06746ed87837. 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/FR59R1903021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb322db0403d8d10d7c994a9c3a6e1be09b6b3bc921516cefd608769a8721a67b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/UABM12500622.