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 0x0477e47eada6b27af4c0de1739c25a2e056aa70b606ae13b93e322d70655293e. 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/97f2093c-8523-4523-8629-593fd237d705.json and https://artists.proofprofile.net/proofs/artist/97f2093c-8523-4523-8629-593fd237d705.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Horizon Zero Dawn: The Frozen Wilds (Original Soundtrack)
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 0x22b8ced60f3111e17f62c8b2d304f3200f5a261b4288c4c4c1e9918569164821. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB9TP1700566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a6af716d2dd38f90daf45054d1097c84611ed49687b0d80a65a1ad614d370d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba005349231da643effc3a9b067b468e8f008f3552205b4b60caa36af1181a17. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GB9TP1700568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd933d84e3216c7ef2813d9a23ac7495bb8534cb5b4e750696b5b42676db1abbe. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB9TP1700569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d9ea369bbd6989537487b93459ca230ad1f9650f14a3f52459b5dac195b208. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f902fa848639ec85df9063fe12377d3b862c114b8614156d3b657cbd81429b0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f269cdeee40d40117420477ddb1d86844e49f4f19c76da1acaaedd6effd6482. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GB9TP1700572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049a5213d6d5f7121219de2e915620ce8e08f8f7fa3d3760a347aca4e6ea468b. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e2136ef21697b0cb94809c453ab676460ab9d5e4fa1e6bdbf7d03c38ba1ed34. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37b7e285ada47b3d8843446f6efcb38fbe3a0391e10c88bda3fdb5fa100f4a33. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB9TP1700575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf939d70ec8d52191d35b5cd569394b9cc593438e6c1ba8630d1baf1c7b8d148d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GB9TP1700576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x036e516a0446753f56094f3a1c08ae66f57061e655657cd3d776c4cac1b7a293. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB9TP1700577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x138059c8bfbc4a0226d49fbf9b7d14349a36cd71006a21f801cda403578fac2c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6a56e6598948460eb539c03ac47e1a58405c7dbf991a72c338f1f3c8d80b165. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB9TP1700579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf122dabc50e199dd2ccfde5b880bcceb0ced333fcb3e7298b39f3e58da9a353. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GB9TP1700580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b024f2597a775c402e23bcc73f20e4266445422188d8d0b936f707851ebac53. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a5f9a678035efb8ae953ef9879e9969896d658e6d867eac2155cafe96a25bff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700582.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc417c7a9d3153424b46d06731a379742f5cd5778b4450467af97a4ef76d5a18d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700583.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dabfb53a221449c81c9072aff4e8ced28f975b1091eed369f56b41a9c0eb045. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GB9TP1700584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa347d7da981434476b5a1bfeb43f8907ce262ad747d73f5e154597c3288a79e9. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GB9TP1700585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c0bce9f4ff18c799776c2dadcde0fcfef11012058b67aa85693fe5846ac1a80. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GB9TP1700586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663d81f5b414a06bae18914e9f4943a856fb2185944949d3b80beba921e8d43f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/GB9TP1700587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0195c84faa2ddcb44f7792952748dc861d1697e81fae7ec6400cae42865d92ae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GB9TP1700588.
To The Hunt! (feat. Circle Percussion) - Part 1 - Motherland
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f1935cbc8302abbc4dbdd6967c747c75b05b28b2f409d98463165f64016d42c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GB9TP1501610.
Horizon Forbidden West (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc8fd7f72661dcad6524425dcd1c25e3383ccfabb6ff05313c044cd1755c22e. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USQX92200556.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x798d324d1989ff5f8431ab8fef0b30b852aef6f82b130ffa58e932dd6f0703e6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USQX92200561.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9395eaa9821032e4ba95a8ceccf2aa7a3539a125850fe4bbecf848d2155fe2ed. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/USQX92200568.
Horizon Forbidden West: Burning Shores (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94eacbc0668d213795a8f4b82aa8dd4963f7242fe0f953b62f6676a9db3eae55. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/USQX92303144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x291e83d21cbd2f844c2296ba4525a3aa635f49a1ccc1638132de8a324dc5e466. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USQX92303152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3b2e6ffb528390c94ac70ba8f9c3c902386accfe5d5e8a9754780db7c840f8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USQX92303155.
Horizon Forbidden West: The Isle of Spires
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c3bee6b318232b09f5d7233aa452d5c2820aa429206b9befa5c5d7460cb5764. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USQX92101456.