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 0xfa708bccb2893db54185350836727a1764eea8482854090a90b95bac8d968a0b. 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/1996997b-3aa3-4e75-93cd-c9b17e7774ad.json and https://artists.proofprofile.net/proofs/artist/1996997b-3aa3-4e75-93cd-c9b17e7774ad.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 0x8e514207c8c6621918c4ff91bd31a14af6f22c78b6bd477b13e8a9faf67da741. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:10:46Z), 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/KRA340921209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d45b5f411cb09f30ac03997c9410aad1499e873ddf81945742cc6bd5fca240. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/KRA340921213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07a07913f11fbe89ad3e432719be20e133505eb1bf3e573ec1e30973994995f. 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/KRA340921210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d45b5f411cb09f30ac03997c9410aad1499e873ddf81945742cc6bd5fca240. 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/KRA340921213.
그대안의 블루 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee04bd552b5928b0cded3a56ec37c12ac7bc9282878545291568b369c2a83f01. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:49:57Z), 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/KRA341211568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x390a90ed7c6ecc427ceb21e57434fea3ad75d044c34a46cc52df3134da5368e3. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/KRA341211570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53b0227bb7634a969c8b52cdaeb8c9b072043846dcc0d1ff9aa1ecf1a4c8c63. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/KRA341211573.
네온속으로 노을지다 (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a5e2b28a9aa3ca7b82b89602aabe6435960c353c6e0221968087648b48a241. Chain 2 (Bitcoin): anchored in block 958491 (2026-07-18T04:29:42Z), 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/KRA340921635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7daddb88a6c7aa539ce1706777159932e5dfb35d860357d54bb25873a18f67b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:12:58Z), 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/KRA340921644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3ac392850b3cf66783a2b24a02fb59e6bb0eb41b9d95e45be7a4c23c66d36c. 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/KRD451800340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x397d34190bd5137efaca4f4f5ff061f0f72f369f7e6b2bb53519f732a3f17791. 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/KRD451800339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3ac392850b3cf66783a2b24a02fb59e6bb0eb41b9d95e45be7a4c23c66d36c. 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/KRD451800340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19974e793384339d0f833610b14f8c51da6bd77bd221fec8a54dfefa9722d6f9. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:24:59Z), 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/KRA341211562.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5266d7c08f9730246e19d173de2768045515f5f499dffec1bae0570ba5bafa. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:22:37Z), 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/KRA340921637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7daddb88a6c7aa539ce1706777159932e5dfb35d860357d54bb25873a18f67b. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:37:01Z), 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/KRA340921644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c8619d2249425078c6bf6ca169e42b7b95cd58b81cbca9fac86225829cd593. 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/KRY661301370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb045b30479589e9a6809685a225d9998b76a4744048e2148a92d5ca80670154f. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/KRY661300030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaca1ffab87462613119a4ce31069853cabfaf9e7f0968b658a7a7b1a92ac7370. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA381902044.
two girl love a man (Hwa Sa, Whee In (MAMAMOO) (Prod. Kim Hyun Chul)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48bdcc6048bcb6bf8a2fdbb58522ce694ea9f8b4a86ea38af0e63073f637feb5. 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/KRA381902045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6332201a2b2d0cc86512b7d501173db27af8963902e1db9564895ac89746bbbe. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA381902046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd07127ba5934c2a16e8bb7f7a7501ee7b9f89fda33e5d98b3abf538b2a44585. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/KRA381902048.
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 0x127b249b465776cac0a952982b399b93fe223c54124c02bda535a147b4a2efe7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/KRA381904829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d33a26ee6ab9dbb10157a8577b9707a755c3dd55efaa11a2275f4a6c61b51c0. 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/KRA381904839.
Two Girls Love A Man (Hwa Sa, Whee In(Mamamoo) (Prod. Kim Hyun Chul))
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf782c9b452a40e67893ecc4e4d54a2b52af02bcf5378eaa2c674840f0b519378. 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/KRA381904840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62351238b13fbf3ff7b673ff66d97a0e0e96b00c8966ebb7db88dcb7b53d9b06. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/KRA381904836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92f06ad02988adff8161e59470ee513b07f4cdbf0d3269b41f434ca86f14ec89. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/KRA381904828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb8f90dd691b89061db410b66f610d815d06c80292206111290077f62a81686d. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/KRA381904837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad17c3caf43d80b7958a5bcd645c00ee8dfee8dd67edf6eef843e3add91862a2. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/KRA381904830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb76239cb55a3400bd6579ad87fc81371e5a8b85b8a0bda9d5bd93afc5b2baad9. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/KRA381904841.
It`s Been A While (Maxim City Summer Life c.f)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b513815b0bd31ea9174ddda5cf952eee9e8b2fa69b58adb07d892448f5ee1a. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:39:14Z), 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/KRA382002538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb3d35c5eced550f2aa558c47c8750b4fb961c579c1da832ddfeb39995c543c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/KRA382002539.
TBS For you Season2 Episode.2 : Kim Hyun Chul