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 0x3b147fedde949f11d54e3bdbf6c923a435f0ca88679fa5d7af4b9a7e0c657af3. 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/4606cd35-38bc-4e0e-8a4d-f9b965f958ab.json and https://artists.proofprofile.net/proofs/artist/4606cd35-38bc-4e0e-8a4d-f9b965f958ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Battle: Tiamat – Motif from “Flying Fortress”
STRANGER OF PARADISE FINAL FANTASY ORIGIN 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 0x61753372859e7134e7ad9e76603afefa19fae05ba00be35e62a50ec9683a50b1. 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/JPA842101466.
Battle: The Fiend of Wind – Motif from “Flying Fortress”
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b654e655e03caaa1200ca8ebe5f306a8d99fa66941418d5922aec0e7111c427. 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/JPA842101467.
Fort Condor - Press the Advantage! - FF7R Ver.
FINAL FANTASY VII REMAKE INTERGRADE Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf4b7097aa6b448451f25e8aac342afd8d682883dc17f44468aa2e34f42d5ce. 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/JPA842100499.
Fort Condor - Hold the Line! - FF7R Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafd0f77319b5bcf891d749f4e8b6033b10c4a47beef322700abd0ff8c6f3ff28. 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/JPA842100500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce475065086cec88f58f768fe24f07129e2e92d72208934226932b2c00e6f2a. 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/JPA842100501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70bbbc3ff75c9a3d2eb98eb79850859a1320c840d350b1215d852d591f561e46. 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/JPA842100504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3accafc8560e66146530b10df1a00a6a3dabbf844276d7bd0f139ed57c8bd6a0. 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/JPA842100536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6dc59e6e47da1fcf311f0dc56afc691e2459975669d1a34f3688ec5056ad3e5. 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/JPA842100537.
FINAL FANTASY VII REMAKE Original Soundtrack (Plus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d44f19ad63c8ba24600c6bd37efdd9fc33d85f4f7f4f92aad28d6f22c3e5445. 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/JPA842003431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x535350610e029f3bfcd8386f3f8ab509e6c1f43e8f605ddac05fda08fe4c3e83. 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/JPA842003432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x316b49575dea017aa9893ddc148ab2c13bd2b1b5c32c926d12174f9c788dc522. 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/JPA842003441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x303a38af67e1ff7d2092af38eec9a272b2ed6cc429663fb501383b1a19bdc0ef. 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/JPA842003454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb625fd10b34d97cb60b211c9dc045c6fe098ef9922c6af365c92de7f590018e0. 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/JPA842003456.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c300a6f132d42f92717e9be1c848acfda7be378e5403f96c2a05934a860ac9. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:49:22Z), 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/JPA842100503.
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 0xca120a7bfa519fa58313e0cd816fd137a0347fb2983b1dea02d4db5722aafc6a. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/JPA842100535.