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 0xac66fe141bc6726d9a027cbdfef850ce7bce5f64944c87332a64554a5ccf5263. 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/94a042c0-c167-479d-80ac-b5fe5aec3639.json and https://artists.proofprofile.net/proofs/artist/94a042c0-c167-479d-80ac-b5fe5aec3639.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 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 0x33083f45a24874d5fe2fb1fd402c05428297253cc4153c69f900bb0df5a3eb90. 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/KRA341766629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3a541881518200b4988c23550482260c9733c063a3586fae4567f6f42b76c1c. 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/KRA341766630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a02ded1944d0bcd6949f32480e4d02164a56b81b10b1771df017dc7dba5295e. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/KRA341766631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccfde58abf9cbc8fe9e947e82fbf0293bdf71e167da4b2965e293fcb9c008a4. 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/KRA341766632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee4447bbb9ced32aae298b1e31065f0d19b54a804c20afe6565f664c9bbb0bc3. 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/KRA341766633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa99581c5dbeccff41ba91fe28b1c1e8e4a667db78e248b9de63617d985aae07e. 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/KRA341766634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882cb9b7b5128329076ce79aa4fef9da483f5a28b8de2d17e64cde2de5be6b6e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:55:58Z), 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/KRA341766635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e77d1f412a6c04b1888249af19fd11bef209d2657802cbe4869c1e9b5c6772. 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/KRA341754519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99bdf6d393e7373dddb5951ca0f4f2a35640785d7f579ac8210886fb6ffb5645. 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/KRA341754520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d03eeb25ebf2da977368c2ba522b86707928cd6acf942adb92e1131d7db6bfa. 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/KRA341754522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0396910d36163e5877195922f797becd4007428ccbe7631254fe93898f0a98f0. 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/KRA341754524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x799b1a1f7f9d52cd089c108edccabe23ddd639f5839f9e98d1696f75a20d4e00. 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/KRA381700829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0945b74f8cd1a1907204fbc74fb6a6384fafdf6b32e1735e1289ebcfd656905. 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/KRA381700830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86fef8a2ed7faf114cfd028ae80ebb2cbef1e6e0d2934c893c365870bcd11f68. 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/KRA381700831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba5c727ff5a09b9c46621be2fcf02b428eedbb932237e84eec51b2379d31986. 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/KRA381700832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f714460dc091b6301497fa9bc2185dd73afce23c6d0c31250461d88cacaba3f. 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/KRA381700836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4784c63f664635c048254ceccecb0c7d4a140c6d81637b2e896775e2a9c12bc. 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/KRA381700837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa15b38a07c5ea937b4311e0edaea57ba03555b548b639adbc7f0f41ab60235. 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/KRA381700839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52e70f3da3b5f25efec9d0585ecc5250abcccbe8b99a5eab40f2c05725477300. 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/KRA341656216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc94c9ea8bafa09a003169423905c87f87eabe9052b80c92fbfb01c6c76c9ab53. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:37:21Z), 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/KRA341628992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd69895e7fe6e4634f17fb23c08ae79376ccbc7ce311b0d6f7516fdad0f43f522. 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/KRA341628993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf0afc886fd8995c4b87ce32e5e7384e830c90f11feaf93bfa2097c2b65256c0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/KRA341628995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d5d83a09af8701fef8ad4ef208c139fae8b9925db3d8bb29f46b11befafa10. 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/KRA341561407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d8e981de94b8c4ba364f56c356132f546695b48a801e519db4a1a5ff9f7d43. 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/KRA341561408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45cc4515e4b3065092382eb9d6db6199ffdb010ecccb6b623f8ecf59753c4534. 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/KRA382207318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad984d282323a03b86aa0551ed26301d77dde070e619bef19d46f80b6c08c5d2. 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/KRA382001924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x085395bd4eb3a0786c34e2e9693761622011aed5716c1e60da3fbce0722e1037. 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/KRA382001926.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e0c18f9e030900a8f50fb20156a43752d4dc6b202fa4ca492af562bd34dceb. 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/KRA381900785.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd3d6f16938cd4b3a1c2c6b97a130091ac83d8a7fd5510c27e09e2e58b89b82. 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/KRA381900786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x149db38ec0e372bcab9e362321d1020f6dcb120715a7a49b24744e1a6e415c42. 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/KRA381900787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x931d4ec0ed2fc2046bca390e9707e0d81c8a9cdff9279eead48ac73b074d62e3. 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/KRA381900788.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b742b92f37968c1855e0df6a31fb16566869a9120c4373cd861fdb7bc72bb7. 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/KRA381900789.
TO.JENNY (Original Television Soundtrack) Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ea78f7f83935b74749976234492dddc8f1b83ff55af92f94db1f9add852499. 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/KRA381800278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884dbb0abe2066ffb063ac3f5303fa27b25d4263913c1edf6023722b2c971932. 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/KRA341754765.
My Mother is a Daughter-in-Low (SBS TV DRAMA) OST Part.13