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 0x2309c199e8104759cf9f8205a9de540e17e5c1e34eef6e0ebd26b6e8cfd0ff70. Chain 2 (Bitcoin): anchored in block 953699 (2026-06-14T22:00:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f571344-a660-42b3-9bd8-d3adfc205c07.json and https://artists.proofprofile.net/proofs/artist/6f571344-a660-42b3-9bd8-d3adfc205c07.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Light in Your Eyes, Pt. 1 (Original Television Soundtrack)
[Extraordinary Attorney Woo (Original Television Soundtrack) Pt. 7] Flash
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 0xeff0d78e7753657ed42a04f8a97edff6a09632441c56c4312c78979867ac8cc8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/KRMIM2243758.
ウ・ヨンウ弁護士は天才肌 オリジナル・サウンドトラック Part.7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29935bfe607ac0e0dda7bc628a9468759d2edb328908afce3b13b110022f62f2. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRA0R2300769.
Minecraft (From "Minecraft") - Acapella version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9975ff4167a35cb913fce741df8f182b7578db01d6c8b82f33de9bd3328c55e0. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZPJ32341654.
Moog City (From "Minecraft") - Acapella version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa89a1c6637c360e797e7021dcae631ca12e67d43c66425aa9330895c6c387920. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZPJ32341657.
Aria Math (From "Minecraft") - Acapella version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca5b8f882a772fad0fbbd40c55581af27b3ba0f96fa7133a632865e426902a70. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZPJ32341660.
Stereo Madness (From "Geometry Dash") - Acapella version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b399e4f47104131ffe0c78a58ee4ed9010be6a3822b5dc3cf037fd49784e9e3. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZPJ32341665.
Wii Shop Channel (From "Nintendo Wii") - acapella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca8769f42011fded7c4af8fe974b05dad489ac285227d8e1ed3489ed15f787f3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZPJ32349657.
Death by Glamour (From "UNDERTALE") - acapella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7ce692596de9659ee3708df876d19d2aece68ff3f1c2632f1196434d5e5c9c. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:06:00Z), 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/QZPJ32353474.
Love Is Coming (From "Heo's Diner" [Original Television Soundtrack] Pt.3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd267e457871e4070d4b96fe9ff997951545b2ad65c9e27f9f2379f6f0ff30f28. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:37:45Z), 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/KRD412500009.
Love Is Coming (From "ホ食堂~時空を超えた恋のシェフ" [Original Television Soundtrack] Pt.3)
Grandpa of Mountain 〈Sanullim's 50th anniversary collaboration album〉
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d16cf7322df5c575df879030da74d69176d259f0927632c39a550510a33db4. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:52:54Z), 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/KRA0R2500228.
Extraordinary Attorney Woo (Original Television Soundtrack) Special
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff0d78e7753657ed42a04f8a97edff6a09632441c56c4312c78979867ac8cc8. 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/KRMIM2243758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34b73c7675b6e732c98a99e39c0b9a54e12eacf51908cb246f413f1fe2ca8c7c. 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/KRA382501184.
Morning Dew 50th Anniversary Tribute to Kim Min-Gi Vol.4
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3306cb8bf2a9fac585c4adb42573630f40d50316acc2bcb2b13ddcf84641a77. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/KRA382159115.
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 0x0af8ce1aef42bdf22f5d576939a7b7ae6072256cf95ffb7c513007bcb14dfd93. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/KRA341789991.