1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x31f68840b8d5c44b89953801c49f5a0861779e5a0ee5d2c43c08475c50e727b4. 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/bbcf9ca6-33bf-454a-974b-cc95acfd75ae.json and https://artists.proofprofile.net/proofs/artist/bbcf9ca6-33bf-454a-974b-cc95acfd75ae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Killzone: Mercenary (Original Game Soundtrack)
Ronaldo (Original Motion Picture 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 → block OTSBitcoinBlock must exist at that height 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 0xb20fb5714941602e016225533d6bce0935658d0288af83a19a85c58df05eceae. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/GBKPL1674581.
Unmasking Jihadi John – Anatomy of a Terrorist (Original Motion Picture Soundtrack)
The Unfamiliar (Original Motion Picture Soundtrack)
Knuckledust (Original Motion Picture Soundtrack)
Till Death (Original Motion Picture Soundtrack)
Rooney (Original Motion Picture Soundtrack)
Shark Bait (Original Motion Picture Soundtrack)
Liaison: Season 1 (Apple TV+ Original Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadbfca212fba84f4d9819d61e53d95cffce28398bfb807948e21c52991202d7b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USLS52337401.
Call of Duty®: Modern Warfare III (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa5574329c11e954e60c8c6b03afa91aef47cc5b6c5c34b7c62a812666a2c5b. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QZZ8A2383935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb94a2aff95676061bce1ae7fe4c5c6f14f066c85eefe1671170ab4d9144d27. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZZ8A2383939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x909a8d09fd34d50ba04a32555bf6583cb8865e8bfa2b58612efc177574798162. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZZ8A2383941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32033a3e355170746b59cd9b25b2964430956ee86ad570a7d83388574698b213. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/QZZ8A2383942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6c2b04a7edf97e81c4fc49f35d754e50da1b528a48a4f2f681f37483f84b8fd. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZZ8A2383944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x771a7efc24463e74f497fc2353f23546ce50ee616cb18e99181277f51a0613fd. 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/QZZ8A2383945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2dcdaaa44255d25cd50de7d53ffdb72d3f87b9f60ab5dc34ed8f84a51f8a09. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:14Z), 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/QZZ8A2383946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86d2aaac0ec2a2bc7fb685fe54252b4426d8d64a44131e58eac6102f1b68f06. 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/QZZ8A2383947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5a0a9d5c5d00ee835f981a3d0205f0d8cd9e0c3ad5096b28bff9f0b39282c77. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:00:02Z), 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/QZZ8A2383950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec6fd9cccae9160bde0455f682a8df5b2f4b66777b028f338d7cfe86bb078fc2. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZZ8A2383951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cb144ee46d8857955f2afe9971b0ce4f75a2d30285e863f0bfa317842b826dd. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:04:33Z), 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/QZZ8A2383952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe513bb6269da24b162df29ef94e38a479d68e885d5da557121e8e80f3cc651d8. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:32:00Z), 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/QZZ8A2383953.
T.I.M. (Original Motion Picture Soundtrack)
Call of Duty®: Modern Warfare III Remixed (Original Soundtrack)
Modern Warfare III - Justus Dobrin Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7050645bcab5cb5d18d61907fd8ed1395ba09c3cf6e4751bb8f8f3c29735f78d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/GBWUL2456271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bb92eb438c367180d3a19711f7444b5fdcd28f7c1cce24ba30063c8b20a52db. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/GBWUL2456272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e1e4e91c24b122d4564294791ecfcb252fc5d3c8d58f4ce9194fb65a80693a9. 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/GBWUL2456278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc54148853cffdb3a7223fba67666fe1fa2dc2b1314327a1ac3274c49ea7bd41. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:50:35Z), 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/GBWUL2456281.
Call of Duty®: Modern Warfare III Season 4 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48113fd58d283de2526e14d6f517b85cd363666930eb54ae1f6f9662b69d3790. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWDE2431260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99b24469cc67de8e36e52a32056c6307e18965ade8602242c75ebbdd0c4da283. 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/QZWDE2431265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b5b73e1e2c26ec622f5e270dfe0deda222f04774b050d53c823a2f62d8a659. 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/QZWDE2431268.
Total War Battles: Kingdom (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6cd5cb43855e6e70e999743c4de3e78fa45c6192745d8011b02fb2b1b3e486. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM82476727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8014cf2cd58f75e9b2bf8b23f8a90875508d3c464569da09ec1547c73e716421. 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/USHM82476749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x237eddd01185da6d67e8a577bf50c8d7dbd351cbde93af500a7af05529e3e48f. 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/USHM82476751.