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 0xeeff216c88f64f6917f9fc8117ea2855811a881d5da9767c98887e94be920a76. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e2070411-fc0f-4e14-926c-221fc855f1ab.json and https://artists.proofprofile.net/proofs/artist/e2070411-fc0f-4e14-926c-221fc855f1ab.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 0xce71cd81a8f9a0dba32c8543d884d04995678a300dd60303fb24cfd36e64bd78. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:11:39Z), 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/KRMIM1814507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa0e0c5468306102915c7ea8bd0033309e94a6b1f985085e7e4f1754292b1652. 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/KRMIM1814509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f0890d95075a0488387e7879a1e290d001a6cc9246cb5fa7a6fe05927ea34b. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/KRMIM1905604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a9f16664cb040c039a8e6b972b1dfad7fd26ef213fbe856a39fe69759774c2. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/KRMIM1905605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe290a86dcaaf83cef341822c3af2920ab52548b0ffa97f82494e7cdffd9ac584. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/KRMIM1925154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93fdf77fb4104ea6ca59fd20fa3a0cc9700cefd558d1cf128a67f5fe2997413. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/KRMIM1925155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27c7177f9741551d195e971634fa5efdaf10c2490ff4d7b967d76f03c4549283. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/KRMIM1925157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a744409221f6f4d23e7be30a8aa028bbb942fe3c5094f34763a1caf6a273bd4. 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/KRMIM1925158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeecd206cfdb807cd15cc6f27a2108ad6bff8fe7d878723ac84e6a8be650282b. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/KRE892000326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4167f418214e50fff9c63cc88e1231d426e11eeac4ffc75f4f014c8a79187de8. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:54:07Z), 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/KRE892000327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba47c790f1cf44abd208fd63a0ffa9efb2eba8a291395a0cd5c9430bb1421dd1. 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/KRE892000328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5ca984065c9702a52ec53cde3b7540887133722e47619e511a44a9a23989ed. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:32:05Z), 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/KRE892000329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983f4a79610ea18c535a671d3c2da2e7454b7a4810b37e292f7cd91b0f38d1d5. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/KRE892200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34c4235f940087f83165d7f0cbbf45795063de881866486f204b48f968e9d3a5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/KRE892200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02c94587ac171be4e29a5c70ac38ff76713fdd936df2c5c724460e573dbc0851. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/KRE892200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b80ebc06c57cc7603aa244a9eff46ced5ad7511fafd0e697871d8cdbd7649a8. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T11:00:20Z), 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/KRE892300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5061510c518a83d37549e19e50c258ceb39eb8cef9537f542760ab814e8cb185. 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/KRE892400001.
On a night when no one is there 〈Sanullim's 50th anniversary collaboration album〉
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9473f143e875938b72b81a6ea1288b2021bce9a98b6bc36e59abe17cb0193a2. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/KRA492400743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe539f2ef3b31b936829bfbfd5de5c933ebd02193bb1eb2dd14793fc680da2fbc. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/KRE892400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bd19d20b7b59b7a5c941dd26d36a3378538f54f14655a59743aa604833ecd3b. 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/KRE892400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaefd1b01bd2558808c4fdab478bd1fb37c4dd4c5d42dde1a8966e8af80e68382. 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/KRE892400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e746e2bda9676edb0a9a1558311090c8705ac3277b2e3a118ace55111d0295d. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/KRE892400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e8fbca91abda0cb6e2763fba36e1bc0dae320b3f459a132b6b39bbbb6fa8ed. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/KRE892400032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb0b924895bc5a17eac3a290349fb5a4e64dac7aaa83216dea4e96ca904921b7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/KRMIM2032911.