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 0x74bba119906e346e6b07c1c5624b0e34f61dfc9a9c5308b01215e6e296132b14. 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/cf31ef8b-ec28-491f-addd-472f734b0245.json and https://artists.proofprofile.net/proofs/artist/cf31ef8b-ec28-491f-addd-472f734b0245.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 0x2a4febef184e2f01e1589fabba1def5c3ea3535c4b51a84b698f05927d4fd406. 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/KRB461700333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93670f3a2327bf020a792c98b9169ffc3b082c54a1141730021741fdffa61ddc. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/KRB461700690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a75e95cadaea4316f8333f618adcf20a360d1f109f4cf7fe5897bc75015121. 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/JPZ921909256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb0ab832cccfe082a8690d7778f9a6cd1d2d030571bcefdab5195dbf529380bf. 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/KRB461900696.
계약우정 (Original Television Soundtrack) Pt. 5
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8f7b975bb79d900612de3f294f5dfce24a4295634ea2a3381113909b20ec0a5. 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/QZEKE1932854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9051ab5e1219fdcc45a4f65208c6f7476bcbe054c758b85eb554af618a893620. 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/KRB462000465.
Kairos (Original Television Soundtrack, Pt. 9)
Where Are you (From "Kairos" Original Television Soundtrack, Pt. 9)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a5d2460e69d7413c97b8eb71b500c51964b666ee78201dd21653b0a676c2d63. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/KRMIM2032866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f07c9b127bd16097157b7d565b8e8f06e4c7dec3943ff9b529f499de1c2aa64. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/KRA252002133.
썸툰 2021' OST - PART.1 어떻게 할까? SOMETOON 2021' OST - PART.1 Something
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x547932a6f0632080eaf224ab22a5d96e5c75e79405b8e02ddb506d2cf8121d1b. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/KRB921931001.
INTRO : Miserere Mei Deus (We Fall Down)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19847cf610374647a637f12fe949591999677758f49d597480e892a20549a12f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/KRA382158930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19847cf610374647a637f12fe949591999677758f49d597480e892a20549a12f. 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/KRA382158930.
Light on Me (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfb9a04ea0374503e9769643f5c47d4d2d6c860909d17e4800f176cd769e599. 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/KRMIM2126504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204546199208447ba60861ee11839995c8aa66420014ee20ebb6e9f866cab34a. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/KRA382160906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80546b7bef3da67114e1c2447d98169f7e4238849bfef185f37fe59f2ad710f0. 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/KRA382160908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fa99e8a2f1a3b94be2be027a73658424b0e7a14c2a6ff46cb96476d98b448d. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/KRA382160909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807e7a76b923b0c36f00f48342474a2dafd8a5206fb555ea836a8081abdd806b. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/KRA382160912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f19a73945c81e8409f02af8d80b2ecee9dcf52d670815e752a2254d93329cfc. Chain 2 (Bitcoin): anchored in block 958625 (2026-07-18T23:11:57Z), 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/KRA382160913.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743bdadcce209c71e25898db81c2c5377fe324d37385c9f78cf91a33f14bb0f0. 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/KRA382160910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563a73eae92ad17266b5a1cf01c91320856f9cdfcb2a6a020d07c6b3ec4bf343. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/KRA382160911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807e7a76b923b0c36f00f48342474a2dafd8a5206fb555ea836a8081abdd806b. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/KRA382160912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2046afd5b1172135451d730e94f62225b4041f72a4801816af40518f8493e3f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/KRA382160914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc898faace3f025542425b38412268e4c310f73419ef4e54cd772b1c0be29103. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/KRA382164313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc898faace3f025542425b38412268e4c310f73419ef4e54cd772b1c0be29103. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/KRA382164313.
Tracer (Original Television Soundtrack) Pt. 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cd93c274cb38bcfb281b18c650ecf43a7f040ced84f0134640bbebca3af0ba3. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/KRA382321725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1db06f3cc60741f2271130c9b29fff7f21a842489599dfb346053a676d026a. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/JPZ922310656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d78936c6c8af499feed0a587d16c34eb00584b427001c7ae6f9da1a44cafbf0. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/KSA002303507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8cd2aea676a3edd888130aa132485712ae3a2a429d5a898c4fb07d73c01aba. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/KRA382401281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb6a6f8dd10904a4caf717e982672155ccbb8fe2f1b4f77b9ca0e1b4532b02b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/KRA382401283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd59ebe505db6bb0ba33f1f9ac5d048543eb48b38865453a4122596de7a267acb. 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/KRB472400765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b99efe611f5971fc582cdf38473c07337b0dc13da8b344aaa387612966fef3. 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/KRB472400769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cb00c622324e376acd2f4847d4835fc8d57f635c41074840b86bfb7e4a4d00b. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/KRB462400789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7984893ca80c7db995881f74405c8ac85fa81dc70d0c6edbec2bd2809976a00e. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/KRB462400790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0a0e12bbc7ecc0f228405ab2e392a5ed3aa230a5d468e8a0583bb1414be291. 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/KRB462400791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f6815891e06ef2e2d0adfcec253f680c69dbdd8885b88bf360831798b8a715. 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/KSA002402798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596d84b3572ff843953e0ef3632ce69d50624c7370c5cf7f0e791226d2bf980d. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/KSA002402801.