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 0x09f130da4e11bca62e29797fcc6669cdfbfbe69bc99620d1f01007466624a876. 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/36b27d16-53b1-4e39-86b1-b7938ae1bf27.json and https://artists.proofprofile.net/proofs/artist/36b27d16-53b1-4e39-86b1-b7938ae1bf27.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Halo Wars 2: Awakening the Nightmare (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 → 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 0xe70033932609fb73ba8567c91c8a58c4cbf954d1906142f60dc256ad5bda1362. 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/USSR21700244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f2aaa437bafe651a4bfb89ec5a7fb884a57c8b4bc87e57ce16fbbaa5fd95d00. 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/USSR21700245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf67bd87fa1c00a63af4ca78b3035d3e7b9a45d685b43049b907b345bb4d85044. 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/USSR21700246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ad27843f33267e5903e6866c553bf65692aceacb2f3f6c825f338412bf5780. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USSR21700247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77fd85be2da4fa70b44a74aa30751b274d58d990a2ceefba9e6c6cfcba46f992. 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/USSR21700248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9e6c500d2bf93807c9660709e08a23fdf50f2604670dc04a9a025f04d2617b. 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/USSR21700249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff5f4d5d6d0fe128703024d9d25d301a438be7e4682cd49c226519f5c225dd0. 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/USSR21700250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bbf2ab2203b8f540c83f13a816be72bef38a506ce9178d5e011d72cbfdfca0. 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/USSR21700251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7998613ed92bc7ab7305163fd79f04b6aad790f4e5f887ad045d50802c98a2. 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/USSR21700252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6144f6ff95ffe178f38561aeb9afd53967f1f2ee8ca4c4a716f7c9f494f590eb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USSR21700253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb678c3d8b9279e0953ff7099d2bc9ddcce28b61e7efbb5de1bf72279164c655. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/USSR21700254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f04561cd9538917c48ce81687684cf23f2370f4f1f63c2eb98446bc2029f50f. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USSR21700255.
Halo 2 Anniversary (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6782f19e18d1719bcff993c3f0500088a815a6464e3504e026569e51224cc5f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P1461133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbab7d88f0bf9cc815de1db8cb7e2f193be9a0bd31a5389f3a9c4c0c1738a462f. 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/USA2P1461134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x722855b47e6055faf6327a4879838e286b12448299092f84bb7c2d411668a423. 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/USA2P1461135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7303b70b8e1ea749ab526f0fa5259ae2fe1d7cb76ea5d060f6b6f0865f6f42. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA2P1461136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e912122aac7019527093c96f577fe107814e6a74a4e94a8d875294a27714d4. 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/USA2P1461137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc937e611fe8dd62993674245f02a505fdbe5a159fdb4dc2ce65b3deceb0c65f5. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USA2P1461138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a127bca697688b94af2cb8970952b21073bf5d53cecddb8e96f7b606c9661a. 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/USA2P1461139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ebdb20d31b43bb328e8e740ac594a4a9d1c4dbb5c87a89694644536a3453ae8. 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/USA2P1461140.