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 0xd81a04df098c0a2d20f4ac0d1bb4c2e4faa0378baf8ce26c2a20a080980d9bfc. 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/14b48fad-1fa8-41c7-be5a-6cab57e5de1f.json and https://artists.proofprofile.net/proofs/artist/14b48fad-1fa8-41c7-be5a-6cab57e5de1f.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 0x803e02fc686d50530f60dac873ec7ed26bdb8054742556d0e863fe1616f4a2a1. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KRA341315216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33c6f48f4fe847f603b7fed4a96d6e66ec8f5dcb9190f44bd9581db5f7ed236. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/KRA341315223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bbadaa73750086a6440d71b06675763573faabc2acc5e46af08238ac37d3c2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRA341315230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b45a5dad09ffbba237553ef9b2e899d8e4db5b90c4a61cdde024fb737d60c7. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/KRA490400048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c08e6c88ca91f75954f183d58bca13679c202c150c5cb55522f3bd4eea668bb. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRA490400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1637292e0e8899072adba01470ef78497bc994653384fa31e7dfa2514c1c357a. 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/KRA341315196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca709190db0e86b4ada86ffa3622289d6adc599986de5c23cb5e4568ab07f05. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/KRA381210145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabdc8cf53773acb466d6cb541ed9da15443d6a2a306b8d402a35a5d1199b379c. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/KRA381210147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c5ed769426c14c0bc58b5fefd6b82fac97b4b999e370e67fba92e1147673a64. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRA381208335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbda7d4db5208af2ef63a75acbf4145a7751549525d18a9ea394c93a7b607b3. Chain 2 (Bitcoin): anchored in block 959063 (2026-07-22T00:33:41Z), 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/KRA381208336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecffcda03abc6f3524000eee667cd6d4d6f2098ad4776efdc333fe9fd0879445. 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/KRA381208338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f2b971b02ff40ab4bfb0baa31486cb6d7eaaac99c1b19e6dad4012ef2c2f63. 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/KRA381210137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4643420cb79bcd436cdf69888d8dcae3ef19edb8307857b30fd6336039095102. 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/KRA381210104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce110ac8c27181c5a459f3f2934be894da93ff0edc0e74d4f6f7c82132ef18ab. 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/KRA381210117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b23afea068ce65aea38bd7d5e3c3755b34f3fd3992b0887d5f28ed522650f5a. 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/KRA381210142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9155e7c7a7a92480a62c4cca89c7ff7e127188bd7338a2932b28cae82058249c. 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/KRA381210120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3a0c6d5809785122064aca23f247d1031d4ae524a21bac134f4f646a2da562. Chain 2 (Bitcoin): anchored in block 958617 (2026-07-18T22:07:13Z), 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/KRA381208959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5aaf1977157167a10a219b9b14096a97f47d9a73c4d9bd2a426d6db543eacd0. 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/KRA381208960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee027307c0eaa420d75d776ac5e071a77124fabf413360d23165a30cd016a34b. 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/KRA381208961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0e08e8934f5220ff8b0bbd14a2adeb4fca2b8688750845d643a36220f18707e. 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/KRA381208962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cb8fd8b1612ac7a0181a2058e4f2c8595f8ffde3a7a36a79dff5647282fd92. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/KRA381208965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa16b51a500d3af644912fc683ef6c0be859f8ecffc3adc3d8becd0d5eecf6c80. 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/KRA381208967.
KIMDONGRYUL LIVE 2012 Gratitude / 2014 Walking With
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58edb84066128b56147fd168bbb33010302379b2e3869315528488249e59a7e. 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/KRA381211324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc29b9bd3846ec5c36664f75ed8c7f42a2ae5a1d95170daea6616800233253c0c. 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/KRA381211326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37cd06a67c633fe2e291363a9aa9102602d1da72534e142578699218432fabb6. 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/KRA381211330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8b9f0f735a48ade168dbee6c23229ba1453b58a7a36380956b04a241cb882c. 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/KRA381211343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7414232a8fdcda91f9577b0ac8363925c5ed281beb67b5aa4f666f7abf43cdc8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/KRA381704671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x112e840092da8b7faa30fbf4f33449fbfe6a59f24a070dcbb42c1ebe9c0730f1. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KRA381903929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedeaf19f1664bda19d7674ce4b126bafcabf7b1785ab2fbccab4a66f19bef5bf. 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/KRA382005674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc31ad00d4fb2167bce4c22de5c6f462f4de5e7ef83a119407fa9bca5a49ebfc. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/KRA382005669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2eb9ced5df78bcc1cdfe4bc41821db786f669136f21345d9bf890f025968070. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/KRA382005677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a270a8fad3c0da449476b967cc269903bd6ec1be062a8971530a0bfbe0195a0. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/KRA382005678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9735e366b93ca8707421df9a1b1fc0a97cb3148c3040919dcb7e254293415d3b. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:25:01Z), 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/KRA382104225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0778a190310c4c78201b82850e9de839f6520d0b5caf37406b564e5b744c47aa. 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/KRA382104230.
Youthful Days (Feat. Lee Sangsoon) (2021 Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2be45b962ce5b12cb9d3b3825e6f291b4799f93f06419c83d2d862cefc846624. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:24:39Z), 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/KRA382159370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e82c67d4e07750cd878f5fb4e7aac15e71a10db00d4955ba2e4182b47b99057. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/KRA382159373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8dc9f72ee65f80fb2edd8c5e5c7e1bd531b925eef385cd3843302829145822. Chain 2 (Bitcoin): anchored in block 956775 (2026-07-05T10:41:06Z), 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/KRA382159378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6363816d4310516e4ac4d5add9fc313b5656eb205717b87c6247adca553785b9. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/KRA382162938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac1cafb33b59d4bb1e8067719c1ff4f8ccca77111669995bc473e93dd3e675f. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/KRA382162942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70b42b797c390b48112913a08201748f48507e31092ce59916fa62fb17e4e869. 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/KRA382321908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9872f5f6b88c94759aaf95780c97f280d4c23c3343167a048e8f642e74c27a0. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/KRA382401268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb6d4615813dc3509a95719e51be05073045f349a9050d858bff128fb4f2303b. 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/KRA491402325.