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 0x982ca1182448c6b8791c67cc35eed30351f30a86f509dbfcc8ab575438c0e52d. 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/3f8fc10f-c1cc-4160-95f6-2d7463a1fc2f.json and https://artists.proofprofile.net/proofs/artist/3f8fc10f-c1cc-4160-95f6-2d7463a1fc2f.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 0x48fe1a95e4f4954654c7d4f277bb73681631a6d7ef912045d753ff12c718d0fc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/KRA340920734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dac83cbf2bcf8cbebceee69c183fc5251d11f4c0b9bc761039aeb8f546439c7. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/KRA340920736.
Cheese in the Trap (Original Television Soundtrack), Pt. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8c2a9f60db044f1ffe35e0b05953e53c7039404fa995203215f2778f77f6b1. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/KRA491600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd988d87893df6a986ec26f558ddca90cf4b47f79d62e07c181bec9538ad3c0a1. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/KRA491600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94249f2f8bd3b6f4bf872e7f1fe2ac714350734d1457f54985fc6e87811be7e6. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/KRA491600005.
Cheese in the Trap (Original Tv Soundtrack) Part 2
Cheese in the Trap (Original Tv Soundtrack) Part 6
Cheese in the Trap (Original Television Soundtrack), Pt. 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0701e8657ad1cf1a2d1d57f980c6b136d7c9a88841e9cef73ce592f58c97b98d. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/KRA491600097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cef9c903503d6b61b4baec188661cb444380572254635b41c5e6f7882a636f6. Chain 2 (Bitcoin): anchored in block 958647 (2026-07-19T02:36:14Z), 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/KRA491600098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4049c4ecf8d91c8fb3d5618038a948dff68cd52b573ed84877619bfd7819e1b. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/KRA491600100.
Cheese in the Trap (Original Television Soundtrack), Pt. 8
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe661ef47f5e0f9780ffd72873f4a7737366cf0b8ff78358871102e1822002d4. Chain 2 (Bitcoin): anchored in block 958635 (2026-07-19T00:58:42Z), 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/KRA491600120.
Cheese in the Trap (Original Tv Soundtrack) Part 8
우리들의 다섯 번째 계절 Our 5th Season @Ceske Budejovice
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004ecd2e81f00279c06cff2c3b61b40c1532053efcd76feeb23e2eef5ebed5e6. 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/UK6821401694.
ARGON (Original Television Soundtrack), Pt. 1
ARGON (Original Television Soundtrack) Pt. 1
ARGON (Original Television Soundtrack), Pt. 2
ARGON Original Television Soundtrack BGM
Summer Strike, Pt. 6 (Original Soundtrack)
We Swim in Dreams (Feat. Bang JaeMin) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9963f5f19c5534a6972f66b426506d2fd5f36e1e7c5dd6c778281cd4a78c14f4. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/KRB472202258.
Summer Strike, Pt. 7 (Original Soundtrack)
Me, the Protagonist (Feat. Love X Stereo) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0510935f988a8ca55a4a9adb4c3d9429f318522c90316b9099edb5cc4d95e0ce. Chain 2 (Bitcoin): anchored in block 958465 (2026-07-18T00:04:42Z), 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/KRB472202280.
Unintentional Love Story Original Televion Soundtrack Pt. 6
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03ed415fedb4696fa8cf950f101be612d5e7a3ff429a3c698ffd7c62884c7f6. 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/KRMIM2467813.
Riding Life, Pt. 3 (Original Soundtrack)
Riding Life, Pt. 4 (Original Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e4f914c2876c5872de9ddb5a74fc1123dc04e642ba49509f10a34f4a90a5b0. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/KRB472500892.