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 0xafa011a75d7d6508ced3111558a682aa2d0da880cfdad9cde961719335bfba86. 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/4895543d-06db-45d4-991e-bfbcd113a747.json and https://artists.proofprofile.net/proofs/artist/4895543d-06db-45d4-991e-bfbcd113a747.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cocktail Love (I Want Be A Good Person Only For You X Lokid)
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 0x36d98cefc52f086d1301172f80f213f12e1d7034366328a835ccf1cd045d3a44. 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/KRA252200024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb315e5ad008a90dbb5a16adf3cadd191ce0be7d5dd75acf32e34c56278c839b7. 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/KRA252200518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x530278667e009d095e0c04621f9001a0d8b9f6e8fdc0b0cf759964d0b91dd41e. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/KRA252201349.
I'm afraid you will disappear in someday (Our Secret Diary X Lokid)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5ed7bff9181a01faa9aebed03824284cd64e80ae44166b597244e648fe436b. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/KRA382322637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4f6d6546d511efe7ba292453141cd146b18c6cc0e2a3ad563918945fba978c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/KRA252400413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56a0f06d7583ae51803fe92e78d026f6007d175ceee06558345f19692bfc0d4. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/KRA252401093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903da0f00778a8b7692343273325e2402db4761c01718eb1d71b58ca17499c2d. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/KRA382404915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x260231355fa4652c584b706d4c94c2d9f518b1b6bbbc778c8da113e1f3cfb32b. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/KRMIM2477640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8a6ee919f6b424d6d601a35db3b433e12ebb0d6b22ba93d4cacc518d05c9c58. 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/KRA252403342.
Seasons change, but promise me you won’t.
IT′S OKAY (Original Soundtrack from IT′S OKAY!)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea51397c36368a3799067767f37aa56c3b948ab147138fe460f73d22efaf06a4. 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/KRMIM2346787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5447c64ab193899aac28d7f249f7fb1df316e7d8dd106ba43cb10c73e3b6b941. 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/TCJPO2126338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9490d0f61fc3ba684b730d0a24775a8b7fca5b4637580fae4a626183c05ff1b0. 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/USCGJ2034653.
ARTIST. Tmlm - 내곁에 (feat. L, Lokid & HYUN SEO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7050ebfa1510b64257332e582bd54bd87cf19eab8d7db359768883d86f75d3. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/KSA002202323.