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 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 0xac84d78797279fb63c96f2fe378c90abb30c8a8e04eed11fb573b8953c4173c8. 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/99030f68-32b1-454d-a2c5-7d54cd618a81.json and https://artists.proofprofile.net/proofs/artist/99030f68-32b1-454d-a2c5-7d54cd618a81.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
SHADOWBRINGERS: FINAL FANTASY XIV Original Soundtrack
FINAL FANTASY Record Keeper 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 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 0x6440a72084adcb1802ea39a45a73ec97d33cca2d8e97b9fec961417b792ee36a. 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/JPA841600440.
A REALM REBORN: FINAL FANTASY XIV Original Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf566a1f34553663aeea03e65ed51120f89464a78df87265a1ecb1ff8ff60655a. 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/JPA841400081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d1e14efff53365f91c9826e7cf4e1beccc3643d6cba01a3592ae8cf2ea6af3. 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/JPA841400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf8f459a40bc28d0f85b5f30999fa29c95d519e7c38cc8013fc2b2488d37fcb. 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/JPA841400083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3afc70c69731aca6c7e344e88594c5f4b2a404365491bd9f064415b728c8b9. 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/JPA841400084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2eb715654960903ab3bb8111af1339747880f50a59d6a848c006fbabf1e8c213. 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/JPA841400085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ff6f4cbe1673580952d5ad30b0757f2a4b21e7539a26e53d706eff0755a211. 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/JPA841400086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d4a4c0c5fad0f8cabcd153dca2eb2cab6f0976f848e62151690b73dfcb66a8. 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/JPA841400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b0f09413d90d2e841f38b885e316f87ef862a2448589bc9bd71e8315670c0f. 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/JPA841400088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b433eb38e8a102b262da3f6b30a042586501582628622b602705c2e490c5d2e. 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/JPA841400089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c2c828e9e65b7d055fa730b318d46a55364fdfb1cd781f9b4c84e398e2226b. 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/JPA841400090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793747eb482a2c11146305196271623d44b46c68d68a317738fdcc5cb493005b. 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/JPA841400091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bb401acdb20684e1d7bf664d95118c99880fdc8aed1b25570fa9739d6651a1b. 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/JPA841400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc171b59a536d191d3a4b90519abfc1a8f7e6db138d2a1b04202caafd7c54f3. 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/JPA841400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08bbe31b5db4159e95033eb81af52dfc7ecf37ed5c4d4f394a12f211b6298ff6. 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/JPA841400094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea482730878c5a3278026bd5cf1ff023eb1920953920bcfc724bc1c46426921a. 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/JPA841400095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc14535c155e6b54f3ad7f66153350215a3f8424e26a0b428ddfe0943a69d1ce. 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/JPA841400096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c07863d980d024baafbaaca4cdee32d00503fd2eabdd8e60c435f487c1b9d8. 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/JPA841400097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62182de267e0452123e1051d07dad7cf4c74120594cea7880764e0375c159348. 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/JPA841400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x096ee03d2d1775be8b3cab663d9537d3ef4ad4c6101f5cfb3c9f1e54d2bd6f99. 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/JPA841400099.