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 0x68e6b866435d9278cbb83baa8472b54af72ddd1e3ebf6256e38b194eb2a8f1e9. 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/d4ed8b04-3a9d-466c-811d-4a90ed21af9e.json and https://artists.proofprofile.net/proofs/artist/d4ed8b04-3a9d-466c-811d-4a90ed21af9e.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 0xf1d0686b3a25b8a24a4ca644bb2efbae6bde3e9f939e9117d3b951600dd06419. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/USSM10703559.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba6e21e60bfb05c8598b94b3640f7232768dec051889e68c4e8527074aa92c37. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USSM10703560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54124117215d57653bfd84813c7556a4c9f332da2b471eaedc711b36fff8f425. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:55:50Z), 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/USSM10703561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86aeec68c2427f2144406c685ca251c2e646d103824f6ccadb5aeaf482f0930b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USSM10703563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b72f51d0fa0cbec6fd8138001e5b1d2d07b982c5963caf54c2bff0391e1b9b. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USSM10703564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c1f8a33102580e61ce102f5085ba188da0bdab05e13db7a895489ab17d2552. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USSM10703566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b4f7365799db2647858db66d9eb1b1d05714ae96e10c01ca4ef9b3d9a6310d7. 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/USSM10703567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03edd370bd906bafcc3b8e7dad6ed0db987dd938662ad17866456c7e5a0c9eb. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:27:28Z), 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/USSM10703568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e7c0633cbae61e4930a9fc513446c3743a5202e51ec31409566efa68089748. 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/USSM10703569.
The Naked Brothers Digital EP - Music from the film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dccb1ba0e195354908541637fe81f1187dc7f40eec76440463962eff6f06fd1. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/USSM10800532.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb25914480f3f7e952f45697d83a9f0b367957e7969b3215c5cf48074656de17. Chain 2 (Bitcoin): anchored in block 957658 (2026-07-12T05:03:28Z), 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/USSM10800535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec54f73761ba80476122a09256ef19390c7f29cbf1c2a1bce7a9614e855eb9a. 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/USSM10800536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a177c84f0231f11f72c66fdb6276caedc3f8bd2c776dd45c8f517bd068d507. Chain 2 (Bitcoin): anchored in block 957663 (2026-07-12T05:58:46Z), 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/USSM10800538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f113bff5b368304fc964aa709d1938ae0a1bb6627db170354eaae3f6acf0b1. 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/USSM10800537.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d4ce817215b206f57ea8e8fed588efe160abed185aab08065f30fe98bde967. 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/USSM10800484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5bc6a6a79c682d28bbb1854468052e8d31599f52066a52b9d64a2306fa0e2a. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USSM10800540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79124584514df419044ccd2f166b948e5f9a6b12f9de6c6368a0995186079de9. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T03:10:16Z), 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/USSM10800539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099eab16e9b261f419530802d734ca4227b218427389a8f8fe92529dc2e79d55. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:00:29Z), 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/USSM10804878.