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 0x4b517e771eb5ec0f09f40be4181f806bb3c24ef02ac1114a37c47abd82ba4e12. 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/bc31c34a-c559-4513-adf6-7fb7214947db.json and https://artists.proofprofile.net/proofs/artist/bc31c34a-c559-4513-adf6-7fb7214947db.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 0x02477c149d8bddedd1597088ff2418f6e8aa9f899b50dea1065bf77c4ab340ff. 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/KRA381202272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26d13559e96a8555b66f4db33e98d3e46cb8bead1e96e20632d92edc0b157ba. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/KRA381202273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4234d27a540f4b0eef51038f598fe48cb0052cc060b6411385ab249eee864eaa. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/KRA381202274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17204ead94a968699ad5e7f2f575bcb3da2ffbe584bf4ed952c522126a2abf8b. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/KRA381202275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1692640ada99fb5648718f56ee9d8ef0b53a22254538c1d63664b923da537478. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/KRA381202276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68159148bc249993793cb3e6a4e7c1548765e10d3e241edc081e3411ca6f6c3. 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/KRA381202277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595045ccd40dcd71ba160f8a3594b338f619e86fb084c10212e1c46657e6a6d0. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/KRA381202278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41085c13e17c6eb40e34867120f81fb97ed876e590077228ef4c5344b9e122ad. 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/KRA381202279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58da1ffaf2acf6feb2660956c1db626275ac18609c6f98a044d4cc32ca80fc75. 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/KRA381202280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc46c9e0e70a96f9a323800d0a958851d60e05a4678287a343081d8eebfcc75c3. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/KRA381202281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4646ec5f18d793451c7eb820e7c72e9c3a77c9f20be91cd56836bf8e42cae8a3. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/KRA381202282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc69d08c1e21ca0e6c9c1f19a171904aeedec7517c5ea5d79aee4c9988bc10f. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/KRA381202283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fcb301cc83bcf03ea48ed926acf82de74ec7c0a53f4160002e2b2931e2a214. 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/KRA381202284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92b579754be6c532d603fafc0d8aeadacbf37082a8ccd8f5938f06140d5569e5. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/KRA381202285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748bcce16199e8ecf89a19712f27e99e66f8d00fa695c06c46a94b8efcedab1e. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/KRA381202286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6827480cd29e5a58fa800818f24087863e4c7e74d97140d93f6dcb37241fb4b. 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/KRA381202287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c6d098c89b6837a85ed4004df0edb8aca34b07c20558d1a0afe6eb2c5c4db4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/KRA382322849.
수상한 파트너 Pt.10 Original Television Soundtrack
Melting Me Softly (Original Television Soundtrack), Pt. 3
Annarasumanara (Soundtrack from the Netflix Series)
101 Reasons Why I Like You | Suspicious Partner
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d8a2e3f934c0c413c94ff2d9821099c354a2c9413e941899bdde8861025342f. 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/KRMIM2029346.
Suspicious Partner (Original Television Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1cb4d29e6ef8f3d839e32db193932aac07bc3458941984b61d7f719b14548bb. 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/QZEKE1930856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b72dd1fa4eaac4cf3298ecd3bdce85ab32f51bf8ded92a886e47f345b493ab7. 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/QZEKE1930881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0871bc84a1796f86daa25cf9f9778c6cecd6ebe95d521ff84ca168e51baf5e6. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/KRA341650523.