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 0x27ea645780eaeebaab26196cb118c06ab783586109351409ea0826c2c7b5f0fc. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5b821cb7-58e5-4f19-ae52-ec88fab703ee.json and https://artists.proofprofile.net/proofs/artist/5b821cb7-58e5-4f19-ae52-ec88fab703ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x75762317fbfb35193d380d486e788e90d762fd3dab34d5c9879b9c9977424103. 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/KRMIM1921139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dbb259c27c3feae8557268b5f63c912aca0973c117fd580d42ceb72505bd154. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:35:42Z), 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/QZEKE1922570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2f2fc8b7b66685e71a5112b41cc57747a8ffbe36dea5f2ecc755790a98617d8. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:02:00Z), 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/KRMIM2002950.
Replay (Original Television Soundtrack) Pt. 7
미치지 않고서야 (Original Television Soundtrack) Pt. 2
Love Interference 2021 (Original Television Soundtrack), Pt. 14
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe669769cbec8d94d4e5db7f5b68f33f1695090741cf11ef103fd23e0911002f3. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/KRB472200125.
Love Interference 2022 (Original Television Soundtrack), Pt.10
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0012f2eb7cb2df2b13b07d9dd91fff21917e2b0a62a93a593c47abcb96cf54e9. 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/KRMIM2232759.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaa21f43af3262f1752673a6975ff7fb9cedc9f0239a4db68a70533817991f7. 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/KRMIM2242353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51765abe8a503552cd1a615e32fe21a96f5d22a58ce7618e04122eac4b4c2760. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRMIM2360419.
NUMBERS (Original Television Soundtrack), Pt.2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5d32f88aae029a3cddc64e38b3d6a38bdaab2e8f620d187553c9b300c7cdeb. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRMIM2365592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc32c9a0feddd6296e7c42074842357be4d6075c012229928735eb01db06ea3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/KRA252402463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7bb5da1d72fc8563a0f125633f54131a16f94f30f3c092306fcde953649f57. 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/KRMIM2481354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebd82aad8de67e0f428e352403c37ad854bb8d62969e3da2aa2603bd96d00ca. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/KRMIM2540080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd340d0836a95d7b96e7f19b6f2357bc18683e564c29190bb2b73d8d1045bc7e0. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/KRMIM2530695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fe8b77a216ee7e7718dc88fc008ec725bc5a55287c43db8f075dbc7234307a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/KRMIM2540082.
NUMBERS (Original Television Soundtrack) Special
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5d32f88aae029a3cddc64e38b3d6a38bdaab2e8f620d187553c9b300c7cdeb. 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/KRMIM2365592.