Kim Yoon (born 14 April 1974) is a South Korean former field hockey goalkeeper who competed in the 1996 Summer Olympics and in the 2000 Summer Olympics. References External links Category:1974 birt
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 0x03f5ed42f75de15ebc4ee85fd10cc92e94ba9d5546a9538f0911cc634725120a. 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/a41f1bcf-44e1-4c8a-acc5-0b27d9ad64a1.json and https://artists.proofprofile.net/proofs/artist/a41f1bcf-44e1-4c8a-acc5-0b27d9ad64a1.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 0x3b14fb400f21e525925e8cfb64f3adb8e1f74eeac16450d8cead1075dbdfcbb3. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/KRA341320399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9265f1a01ebd01ea26cd3130efb0cf13c1350aa7084dda0b03e3e89481c59c3. 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/KRA341320400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358d49f8985da922378d904f67410fc73141b1e6c427df9b4b4f20803c007792. 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/KRA341320403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94522eba63b7928c2d9f0ce6fe59c664bf31b3db8992f89788846a7256aa52c8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/KRA341320405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890d139045b59471ec84a5e96c1aeb1ed58d32deb1264f5cfad71a2846728405. 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/KRA341320406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b1bfd96e6ffe40adeaa8d88118fa3c2fe7ed20e593e211445e452f0ceeccc3. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/KRA341320407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ce0218a09868f471400e1eb6043f1fec29cee9d2bcfe42d66ce42c02ce2ded1. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/KRA341320408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a6ec78bea63e4a1ef42fbea54e0d9f56d4190352e3155eec66ebaef46e5fb11. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/KRA341320645.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae628bf9905febcd219e8b80d04269f7c877f21aff67372cea351bfb1d8a965b. 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/KRA341320646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61c9c4536fe9ee800d3a3dac4bd8380c64dffe9b017da67bf3a55953faa8c364. 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/KRA341320647.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ee9581a3480f680fc45188144be921d954ae43ec675a89d060dc81eab55137. 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/KRA341320224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3493cfee25382f0bc948e030d565fa7fdb2e79862228ee69d4721b20e89a20. 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/KRB921910322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43a3461324310013fc63af74ea4424eb08eb62f261fc6622c60390e5013ae47c. 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/KRB921909886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ba8ae574ef8095435add285628a78e9bbf760e400c6e5ce90af3a905d501a9. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/KRB921910514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe697b95762275efc3f0997439b940e9b0d86b0a852bb96a7bbec57aeb0e61138. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/KRB921910279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2941c6fcf9121d20555ce17d9e5a18e37accad19db2df2398e5a8493b1e17485. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/KRB921908770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cf22193fc9498c10dae43a19ae6e3ee4d4267b860a9c19c97396b34f3dade73. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/KRB921910029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61182e716c95fd230e730d4fbbf48e8fcccbd8ff68bf9bd34b973eec1562d11c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/UKXN22532328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd973635a11bdafa1c2328bf73684db2df8d57e8e5610bbcc5f1fcbf595c8a7d. 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/UKXN22532329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c0e956067429065ae0e04e1d118ba315106c7685fa3761b19c1776f11a4a60. 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/UKXN22532330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc80bd4859a70974b4104e74a1204ec803c59beb65b5c52d55ceb986337aaab2. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/UKXN22532331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9373b0060539ee8811f0e432490917d8c80b57ec608f95cba3e52fc5912902c. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/GX3Q92506183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae34df8383ea9097fa8d261f5a2ea19533cd4ee3ebdaf4ae7b2db268673761e7. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/GX3Q92506184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fb4cf73311186e237977bcfb640987869ebc7323d198442ae7086b6ee499427. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/GX3Q92506185.