April Snow () is a 2005 South Korean romantic drama film co-written and directed by Hur Jin-ho, starring Bae Yong-joon and Son Ye-jin. Plot In-su and Seo-young meet in a hospital after their respecti
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 0xda0907daafece7bd41a4cdc3aa7c14de0d0eb971767b7f85528dbf4d76bd7132. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0072218b-e707-467c-abd2-9af16f03d312.json and https://artists.proofprofile.net/proofs/artist/0072218b-e707-467c-abd2-9af16f03d312.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 0x3022c2758cd62f1d6366ecf03e5d6fa3b179dd671c6bd235c810418f3e602a98. 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/SE4BT2100303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23806cdd2d141e8da0e1927cef1553594d4a025c98535087e592c67c4c531455. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:02:49Z), 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/SE4BT2100304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1363c5b93ca022e0f41bd862c5eb52e91b30f02a35600c7bd206ae2ba17598b4. 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/SE4BT2100305.
As Near As You Can Be (From "Comedy Queen")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xadb12e24dc2cc857f85c4b6bc68b39a1c5604a1609a44cedf1465569726ed8ca. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/SE4BT2200401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8a5e57bbcb7e358eb84f3d6c58e2f2b41cef18bec39c575bea07648d7f05a8. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/SE4BT2100301.
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 0x7f0d3114fc0729a7c10b94cb7169bbeae1ab0442625aae9cae457ff0fa678d6e. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/SE4BT2200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad9a95429c87349155f61fd3e6ec11f1728af62d6b14c879c99f847d9c270cad. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SE4BT2301501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9985f623910223d3aa9badb910f8fa35ba3a1c69162b6eb2181e6a56587f5eb3. 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/SE4BT2201601.
Always Be Damned (The Original Music from Pressure Point / Smärtpunkten)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc56236934989422fbe7835a2f020f3498ed49a995e050d95574ec8babd02e8c. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/SE4BT2410101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7ea910618b2a8fbe11745f8f2fe8d217c31ddaa3996e49d10625c68bd5bdc2. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/SE4BT2414105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b75dae20a044135dc8b0e4c72c7cb4f6a0b3e8da9d2ff4d870af463e08dd61e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/SE4BT2414106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63e977ef40e46c4d61800e24f6b2b98dc533c2909b49e62a2b76b408564895f. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/SE4BT2414109.