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 0xd48e7996d3c60097865a880c81587c03c3dff2a7ca974a42b6f811ae21dd7d1e. 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/f95fedb5-91d4-4ed2-ac5e-102baabcfe7a.json and https://artists.proofprofile.net/proofs/artist/f95fedb5-91d4-4ed2-ac5e-102baabcfe7a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Call of Duty®: Black Ops 6 - Zombies "Citadelle des Morts" (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 0x24446ba8df6e48daf76e36e2503a62a072fdd196563cde8451eac91030af7713. 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/QZZEB2441470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9045a08dccc7931bb82d0fd80e36415c8835eb8b3054c770dc2d908d5473ecf4. 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/QZZEB2441476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b87448abb4541172fd58cd71b87f44b492e6a1e4a2e95aa1821601450a28ef7. 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/QZZEB2441480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4988af5d07823d825f8f807297cb22bc02785ad17582813acbc229f12555134. 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/QZZEB2441481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e4f99bc8b257b78f339ce69342c1ee7770b63f54bf8aedabb11fdd337b0db2f. 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/QZZEB2441485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16df2a6717df3a5ca67a7a96ab6c157bbd81925b6d31b0f560b6aaa20cdefbd3. 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/QZZEB2441488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8516aff86eb524730102a28f339e73e5d9fdf5d7cda90344ad53583cbbc236b3. 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/QZZEB2441490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc97bb2e5fdc2f234f32cb6ac11b232d6ff80a98c5818ab3c67781321976578e5. 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/QZZEB2441495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d32d5479f0ad4a47098f348fe154f2b20d50ffced01f2f6358e1385b236b6e9. 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/QZZEB2441499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27578a22ea4bebc4bc3078e6255aeea51d93eb4a61d4c93415fbc976c5e0d7e5. 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/QZZEB2441504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58e98517649700031e11cf382a44af297fa094777186babe50a4fe297af28c93. Chain 2 (Bitcoin): anchored in block 956859 (2026-07-06T01:42:12Z), 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/QZZEB2441506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaff530ea7207234491e612a5d5b620d69c0429f7d7afaf1753d7a9a1233745bb. 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/QZZEB2441510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25b87e2afde993701401deaf7b3851c6bbd6ae3be2f91150d3e609de7ded6bc7. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZZEB2441517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d7441a937fab06516c91e2ced46a8e74d9116c7de2dc11c3cc1abafa5e4d60. 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/QZZEB2441521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3e1954834f33743eb85fdd28460aa67656fc020efbc093456606179a8e8de23. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZZEB2441526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6f6edc696f0f88868cd4d02aef19f97b297c4d1b34bacfc09b8c89a1aefae3. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/QZZEB2441529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab9916e68d87bdeaf14a7427439d12eb1f3135000f07e4d40e9d373c4373cf7. 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/QZZEB2441531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x103ed2ebdca0d2ca48e32b7b7792da2f1d66fcfe06225e16615a9920db7ceea5. 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/QZZEB2441534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9a7f79f12610a1160ac6cd93bdac5e4b7f0f55eb464436fb07fd853829e52a. 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/QZZEB2441538.