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 0x7031f50e891bce3b7bd5cea21fd33e8a9916262effe28cdb9d168cf7301d1e3f. 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/c55cdbfb-70ae-4fbc-91f6-86225c468f2b.json and https://artists.proofprofile.net/proofs/artist/c55cdbfb-70ae-4fbc-91f6-86225c468f2b.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 0x4042143bc608bb8b07da6e387bd1fc8d48fa2281926516893185f9377e213f35. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:19:18Z), 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/KRZ291600186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf0523fbd18228b8c02a3ba9a25b724d508ca2bd6f98a36ee877caa0f5ddc2d5. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:25:36Z), 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/KRZ291600187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3140e439b2cd94cfd7b316a6b0b056a5edd7d80414975fd191fee3af16eef8. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:52:53Z), 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/KRZ291600180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x364d06bacc8f3e215f58ae813156b09e62721ade5d0578a2e5612e9b6e3eabc1. 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/KRZ291600181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd436a64ed604959022b3f1a7eadf35d4691534994f5246de0f2a8a2c78a0d49f. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T15:59:37Z), 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/KRB361200258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc944ad89c9ed8393c723c44fa156b9add9b49614336875da6de4ed43b078b0b2. 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/KRB361200220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6389948f0139ff91afcdafd454de1bd1d118bd37f85c58863d8d953ca7104b94. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/KRB361200262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53de1fbd7f56c998514c3ede5ed774ab532f335cdbc9202e50fa8d69353a57a. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T14:47:58Z), 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/KRB361200845.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x662f4c5dbadc35b8ff7af811304773e5d8ca4a78f0b84f27fca74bd116f37055. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:05:39Z), 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/KRB361200849.
Don't forget me 2nd Mini Album in Sorrow Spring (잊었니 2nd Mini Album in Sorrow Spring)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a2c2efe7c0fbb376d49780542eed7fd4d632b346bfc5a73656e1f1b86f02d86. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/KRB361201368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0643bd1c5dc50d5da857248acdf6c35e75b848adecaeb9b082741b7834c2135. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:57:13Z), 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/KRB361201370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a3f25b0683d476be7b8c815ffc3c765564c2748d17b48a4a7633a413917712b. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/KRB361201473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17679a5a0dc4a184c002606c4b40211486650ef406142542f8762696e869fa73. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/KRB361201636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479ad52ffb19d45dc4cef96f77cdebe355b380a65424057a4542b27e5371db0b. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:48:52Z), 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/KRB361201638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a476d201e38c4061a751e4c338ab307d33d7deaf7e90bb44ac1c10a13d0a576. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T20:53:48Z), 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/KRB361201640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d662f5b84b093786be3c9b049236dc8bc65220999cc1a92a5bd539e2f75a350. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:29:45Z), 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/KRB361201341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58bef5ce3df6d25e6369a55ccbf56e0cdacda2715963383a6df34c90ac094074. 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/KRB361201342.
Love is like a Cold...Part.2 (두번째... 사랑은 감기 같아서)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8836e033e939f1b917ea1a45394cd6d854d17fb579f1b72ff8ac0b3e1d3c850c. 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/KRB361301048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8018bd15c981b74bdfe29b199aeccd67e6e830c9e9fe29f9e700784649c17685. Chain 2 (Bitcoin): anchored in block 958736 (2026-07-19T15:47:35Z), 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/KRB361301051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2ffad2bfa15c2ad62cc32e5d481641201e646a58c2ebd899770907fcced71b9. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/KRNAR1604316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3640ae1856e01b6007640612fb585af820c48e7fb46ef0a16df6109b58ca27ba. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/KRNAR1604318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff88f7a97902e099a41b401dea911241feb9dd4bc240fad9ef7c3d3848f27680. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/KRNAR1604320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a1e7461f38ac8a1909621c1e7fd42c9f5d5ae2b2b1ad232c7b94462e964253. 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/KRNAR1604322.
PD BLUE Regular 7.5th Pretending not to know