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 0x225f1d519b36cbaf01b72b937ed7d4a4b2942cd6fac90416e12ec498af9bf3a1. 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/ab40475f-5394-4289-942a-0da4569eafa6.json and https://artists.proofprofile.net/proofs/artist/ab40475f-5394-4289-942a-0da4569eafa6.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 0x516970347aa0c3c7ccdaa124f0d8330887219cbdbd75d05a699d2a75c9a89f0e. 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/QZEKE1869968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe5bf8276bd4c1818856e49aa03e18a282cda62adfcc78894eb5f53b16ea17a7. 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/QZEKE1869966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bfe1cfcaf92cb9983077fbb64d06b80669ad4a1ed1a85ef7684f27d9bb4ded. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T15:34:35Z), 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/QZEKE1869991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20a140eecd0cd45cd13418b805e889d201543085de2f19368a08e02a237a7249. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/KRA341633630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c746caa65afc84bed3b985283e1c98772afef25544054dc33cd48eba4125341. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/KRA341450846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e2af75f1cdb6c5599c6b88e70cfccbddeec7c97341b157cabe56af5c05d649. Chain 2 (Bitcoin): anchored in block 956809 (2026-07-20T11:51:06Z), 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/KRA341450848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d5dc46fccec5d1ab6383ca7e704e2eb3b5db62d5f157428711f04665586ee52. 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/KRA341647738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c0bea5d9ae923a3bd29d067978175471b736aea88bef13feab2ecec9123320. 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/KRA341457807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d96ab19c150e78ff57dfd4a7a9f56ba213fd289c8b2188287370475eff7feab. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:32:31Z), 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/KRA341457768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbc6e8a1e8c39c8f15dcb355788f049d6a23eff3d8e9b1ff0984f24ebd337a0. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/KRA341457770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3055dc615ae448d594542d15096cc1f7932daed65b2fa95d96d16a550e82fcc2. 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/KRA341457763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66f585ca2dc28a497e1dd060cec3c5176c70dcae0eb441253349b93b07a7f860. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:09:23Z), 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/KRA341457777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f30117f143c354e9d1e49d1af71f7a6791b7b40e784e0647882f040b42855ad. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/KRA341457767.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4c0bea5d9ae923a3bd29d067978175471b736aea88bef13feab2ecec9123320. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:40:32Z), 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/KRA341457807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d96ab19c150e78ff57dfd4a7a9f56ba213fd289c8b2188287370475eff7feab. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/KRA341457768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebbc6e8a1e8c39c8f15dcb355788f049d6a23eff3d8e9b1ff0984f24ebd337a0. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/KRA341457770.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf7fd46087dc181704a0e8fa9d954741426b6f06173ff92b0bfcdffc74227de2. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/KRA341457796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4055c9c5b7045ef7c81854712767639ead19733e420e0f188919bbcbc6b1ab62. 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/KRA341457771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c2b01d3734b8f60ae2db5827881e94673df96ea2e2614dff77b9262e081e58. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/KRA341550857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983b06d407072543a4bfa7a1eedd351d24d6cdc5b119fdf068387b0bd5cee9cf. 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/KRA341550860.
Shin Haechul 30th Anniversary 'Ghost Touch'
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81924fd85bbf71ddf3b03d59be38770f2381c536f29874868ceb2b8b08859da2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/KRA381901852.
Shin Hae Chul 10th Anniversary Album : In Memory of Himself
To You (Squid Game Season 2 Soundtrack Ver.)
To You - Squid Game Season 2 Soundtrack Ver.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x271d523ca204d4c372513999f557146d88d18203d980b0245e0d1e2d48dc1413. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T17:41:40Z), 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/ZZA0P2503048.