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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e40e63b2afe449bae200eb927f2e0c2aed00b30283d13f3d5149b2516cf60c1. 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/c140f5af-9768-49d5-bada-d2661086b0d3.json and https://artists.proofprofile.net/proofs/artist/c140f5af-9768-49d5-bada-d2661086b0d3.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d8da9e259992c158cdfd6f58dd247a0ed502c270fdf1302d16873495e656f5. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/IL6652103196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504f74a360435bc164aeec262edae93b20d981f3033b803194e1e84babe4c362. 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/IL6652103449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec25a0bfe2490f6a89667f7afe902ae88d7bde86cfe47def058095dc3ce6226. 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/IL6652204757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb463a172851ea3af9ec7ff42a752202f354d649f25f4bfef9bdff6c976f212ce. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/IL6652204755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdd9ae4723948cdbc54097a12912962a4bb0d7648bcf7d2d6ce38c34a848fafc. 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/IL6652204754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fce46bd694ea9f2d8b611ee94c4584d7ed6c9b81a7c6a8e65173340286b9e58. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/IL6652204688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x173083db1d87c457262b044aa76951ea03d10844c521f07bae48e1b743339645. 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/IL6652305904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe050cba4a18634f66cdaf64483936a278788abdcee0ceff995ec7e7c0c057255. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/IL6652305951.
Live a Little Longer - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3419588b7a870a5c5bdfb3b29ad7f9c6d67106fd1b3fe29a6fa05fdf9d1d2384. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/IL6652306054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba18b8498dd12db687682f69b50f5de275c187c7cb5c32d4b1874e0039da932. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/IL6652307149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6230ad6fe0ddb750f459f7bf485240d200dad580b3062e324e28c85e2620a11a. 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/IL6652308907.
Corre pra Ver - Yarin Primak & Flint Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f93eb8912ce9310f51367734ecda200d45b032d6c13e68375089caf39579e59. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/IL6652409298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b8c7ace05b3474489be7230345b9bfa90f600fad5e5146b3b0a7534452655b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/IL6652307883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59eaff7d01805140ae0c82061405fa44dbe80dd30107bbdd5c531d20614e251a. 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/IL6652308859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0549e7606599df9c6f918b86b904ef3941712bd5354d2c3e4bc71a99ef8a4a9e. 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/IL6652409017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf826174b4031a9aeebd1607f93eaaa618b29b1dbb705e2fe75114d2c1ff0c0bb. 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/IL6652308797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561b74e43fb607cf929fc45526ad1caffd2fb337b01457cf9c15b843873e8780. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/IL6652409833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x148aaab4ef5ff68e3697ac097279972f58309745ec70f18442b379f85e41f9d8. 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/IL6652409743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe016f143c2f4be397028b1cee74cbfb218948898b2b2e8159869114ae9483a. 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/IL6652410083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b1d95dcf6a17842fda5eb0525cac7c00d37e2304248f3fca2b6d4ed2b9bd70. 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/IL6652410305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8d5701e2fa0734bf30a79273f75886cfabff2d3e5de0471e45968011ab0909. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/IL6652512570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0b25f629aae0894ba0876d429d99afebd4e2a2d660dc96a06f617015614f9a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/IL6652512853.