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 0x4fdf0e067facc545108413a848efa6687d52101b4550ee46a64ae04185c33975. 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/6f8b678c-69c1-4b5e-b0c9-a82d1ade0e33.json and https://artists.proofprofile.net/proofs/artist/6f8b678c-69c1-4b5e-b0c9-a82d1ade0e33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Plus Nine Boys (Original Television Series Soundtrack), Pt. 4
Who Are You : School 2015 (Original Television Soundtrack), Pt. 8
Scholar Who Walks the Night (Pt. 3; Original Soundtrack)
Scholar Who Walks The Night (Original Television Soundtrack) - Pt. 3
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 0x840a3b4530bbd441fef7bc04816e732229daa3a2368de37be41aea3d72ef7918. 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/KRA391600018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40a4782ae6238331260cc605710c706444f67e7779fca07b20da136e40251005. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/KRA391700044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bbe29d147fe443ded8ab65988ce43558e559c3532c9ef0fb390ae781f618be. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/KRA391700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05bbe29d147fe443ded8ab65988ce43558e559c3532c9ef0fb390ae781f618be. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/KRA391700045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75f2563f75f2c97e63b4838b4261d5ec9e43f16125bd4272dfec0c6f871a694. 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/KRA391900043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17de582ebcb0f09deb01f69a402fcef77b74edc432623c10ebd14a9c78e15603. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/KRA391900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cb481ed58159a323aa05f377600140b2efd8c6762270cfb6a43048c655c0f3. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T12:00:34Z), 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/KRA392000019.
Mystic Pop-up Bar Pt.2 (Original Television Soundtrack)
Who Are You: School 2015 (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce3fa8f54f2bee83988a95d5d72c47be4edc5fd85820d53d714eb66165e416b0. 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/KRA491500478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x458e8c8fdd545c6d0a1d79649617527d8cb69fffaaa1503035654d0753d9cae1. 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/KRA391800034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51c6e3974a507e65a298460053e36ee9a067c20a1423d2ea6f6993fda0d90c30. 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/KRA391800038.