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 0x00a5e095dc4db9334c6251014773fc499d1ff62e4da5a5aee90f3163a62958e1. 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/d550b47a-fb88-4bd4-960b-430402dfd8b7.json and https://artists.proofprofile.net/proofs/artist/d550b47a-fb88-4bd4-960b-430402dfd8b7.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 0xa3b2d01d4920d64ec7777ed8c33b85ef937dd2f6679232b323bce3c7d5edb025. Chain 2 (Bitcoin): anchored in block 960183 (2026-07-30T01:10:20Z), 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/KRMIM1924272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7234bc9cb72df35daf0351c6062dfef11c13b46ee2c05c71077e7a212ace377f. 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/KRMIM1924273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8a8c051214f10d401cebe2111d24eb2c12d0ca78cd884c168f18f0ead79e6b. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/KRMIM1924275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a5401c6ac6e215a5df84ca4ce31b73a59c871ef62ad43003d69eebfb54e2e24. 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/KRMIM1921629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa878a5f1a22486bcf54fa3913116e647d8f61e9c4e2b7716d2ca95fec944e658. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/KRMIM2019231.
Love Interference Season3 (Original Television Soundtrack), Pt. 17
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6da6140ca549bfe95a564cad57cf2b237600e71fe6f5476aff0268f6fc980c2. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/KRB472001392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb8e8a55b42e4766debed1195e028ad6885d4959878fbf1a0f6e5d1fdf5f11b. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/KRB472100073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f4c59bdba4a9010d75d347485fda5dab4c005230f49a550a73d8f2e8505d82. 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/KRB472100622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbdbaa9d1d08d4429086f9793232eda9361292f9f6074abe631b96bc85c8488f. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T04:55:29Z), 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/KRB472100685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebae493ed3d3a59c2b14b3fb5f5bf386618f0e83f2f8e84a6ab11a5e64c504eb. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/KRB472100883.
Love Interference 2021 (Original Television Soundtrack), Pt. 18
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bf8e10a7f32e560dfb28f8e19671475e71d203d4272f37f577d002a3e36d12. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/KRMIM2133726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004c4715b5f77fc1c74f6066293766903c0c2ea9b58d60b980f288201d31ede6. 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/KRA252102143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7921a39b46d66fd1590061b2fb6f76dbc127eb7bba81bfffbeeb221fab03d933. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/KRB472201003.
Love Interference 2022 (Original Television Soundtrack), Pt.22
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3012dc285752cf94d85ae36edbb94962c59ac36603292147d86c08623cff9319. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/KSA002300179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2150dd8e5e09ae058686ecb30991cfbe57a8a4e77e9df6396444bf25c1cd094c. 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/KSA002300574.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8416a01771e9e9d1cf5630d5aa184530f98d930163ce0840e0ac78207c4f41ef. 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/KSA002302360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c84f6db23da2c30e924bba098452410fd8340bc2fbcdba26949d503b18a218f. 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/KSA002303321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa44321650fbeee0fca6bcc4c62e1524ec4a2badaaf5f6d43f40442e3ccd28d07. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/KSA002400054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5892effbb29b65ece5befba82f8ffebbc2b9e786e51de470c3659aecf33f89cf. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/KSA002400378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00eb863313146ba77f5f84f7f86d0f16e179a20b9a90937e58aaeb7a308c741a. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/KSA002400772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b36f297c1b93d9b38a07c833ed4ccf21f0bfccc1dc61317a5eaeeaad3402446. 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/KSA002401161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1070f3117ac85a488b84c1dc335fc7f3c39b6b36c92c74f036d14da0b9d3d1d3. 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/KSA002403161.
Love Interference 2025 (Original Television Soundtrack), Pt.1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbba7d438a338ee1cf41b5b5b932728d081c315ce887348089a302fe1d9305a28. 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/KSA002500076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9482e0034e21df89ccd0044f0d622c136470c3c8f0f2735db83e38fd0987a18d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/KSA002500721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83740b072f1ad5905a926d37b51a63fa516954037c9af614d9b16e2fa88ab7a2. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/KSA002501466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da3f8f7ee8e07a32b9b07d0c2d598bf6e4f6c5f36080e988e66afbb6a4b9a57. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/KSA002501892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53d0974334937c0b95b259e35573b42e270ee32722d1a64a37ffe89af75fd65a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZEKE1931195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8244a4d4b2a79fbec669c8cb3ff0ee56ae2dfd744e14261e90d5fbb997ae2291. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/KRMIM2346677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a1f7e82165d3570272811ad3939f48e426ac6497ae62c687a11d79acda2ddfd. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/KRMIM2209174.