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 0x54bb7a9c102ec715378cfefbe59706a480fe8b95ff973538e3a97007bfd31792. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6e0b62b2-f865-46b2-b06e-302e9771f6aa.json and https://artists.proofprofile.net/proofs/artist/6e0b62b2-f865-46b2-b06e-302e9771f6aa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Progenitor: Albedo (Original Animation 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 0xa96c282fc5e888954cb5f62cf36f377bb465b420abbc8416d3d1f20c694847ff. 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/QZTAY2384491.
Genshindou - Cyberpunk Remix Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cccbb224a4a9c88368d4c7e10a1ea4e1f79dbd3c30d3e296a2aa26fa60c3e7. 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/QZTAY2384492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe052e7a5300c2a989999760953a81ec5a8332585329fb795aa62006f682309e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZTB32314456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1901a86879b8dae77a3694e00911fc07aeb9148632d678811e3f4a687b471b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZHNC2330728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa96c282fc5e888954cb5f62cf36f377bb465b420abbc8416d3d1f20c694847ff. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZTAY2384491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91cccbb224a4a9c88368d4c7e10a1ea4e1f79dbd3c30d3e296a2aa26fa60c3e7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZTAY2384492.
Legend of Chongyue (Original Animation Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5af90350d2b7d8111496b22575829872ad2e12ac7e45b904e0cd356ec7b8330f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZNWW2385994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a269b26c7bc6a3fc86cb1607ddcd1a4aca87b3d5802cabfbeb55611c4b4e502. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/QZNWW2385996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x879287b7220574a2ef39a41ff00b3b6a9aa84bd30280c543742910f16d10b83b. 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/QZNWW2385998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0cf1811f41401a1c0dd85cc06ef19fcb9bfaa5ba0e0a22b2497e359914e9161. 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/QZNWW2386001.
In Another Story (from "Millennium Idol")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a44973905007be6be70eaf4f63b2cbee9a8d8d7f78463234d018efef82e9d6. 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/QZH5E2485656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4315630a69dd62c321c8972435c686f787c94890d2de1b26140df336956721d8. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZTB32314452.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e6f26d7303ab15fea40995a8670acb8a9460587a0a175bdefe4388a97351fa9. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZNWW2385995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68bf692af0f0f62d64d62f41e41ead74c34272f9e01a6b662594cec7143f6a76. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/QZNWW2385997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x725fe4b7fa3f20542268ff4457e91881e383519a9181f94f2bc8a23f2ae18ecd. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/QZNWW2386000.