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 0xccb0c0a23ceb2c901ab7ee642d4b4d017fdec833d970e2be3fe4c205dfff5f70. 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/ced0c12d-7928-4e53-8b74-c901c2961b05.json and https://artists.proofprofile.net/proofs/artist/ced0c12d-7928-4e53-8b74-c901c2961b05.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 0x497a91bd87ecfff401bd74148b8c14f20ff9003ad5d78cf28c863044ed1bae0c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TCACX1742249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaac8ba2ba2b72c12c0ea811d7c182f078098ca3540e5d087b6953f8ea28bdc2. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:20:44Z), 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/TCACX1742259.
blue comet (freestyle) (prod. whyandotte)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc161542617c08308e26a3feecd35068f1ae539df88a6d40474182a7557242b9. 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/TCADG1781787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7061ec00a604875018090be7ad15cb7fd1a178eef4eca519748d0734c115bb6a. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCADG1781790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e5b461c45a5a9a36bf8f0b9945c5b841d47c826dfa0b4f88406fe35a16b2c7. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/TCADG1781795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7993b16da72a0b3385613f51deef33e244d748ab8e851d05d855013f51cb8e40. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:21:01Z), 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/TCADI1758696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc6c687ea75ac882efffe94465519388901bf050d8264b0a51bf7100976a7d5c. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:04:22Z), 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/TCADR1847644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7447b4a25d9fa5692a9bed225da29ddcefb224f04a5d465569ce3ff8f037b703. 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/TCAEJ1931875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdf95647d765bf4e2679e403d7b36471e6efd2ae7166f357110576da8832a73. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/QMEZE1949333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee507632ac7d3ad9b4d24fa9c554f6bcf1452299862d325be3ebf3d08237f314. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), 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/QMEZE1949332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee507632ac7d3ad9b4d24fa9c554f6bcf1452299862d325be3ebf3d08237f314. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-20T00:12:26Z), 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/QMEZE1949332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb54f14124125be0b9079d99206657b362b2493cfe9661adc74716c04464cce79. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QMEZE1949976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588aa5748c8fc70954846233c5d647e9a804c56edf50a6516dfd2b421dd70bca. 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/UKXN22068239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c99dc141f441039cda0f51aa7c2b06cec50221ffb8edd5920a94ff13fe05b9b. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/UKXN22068364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cfa57891a95bba4a5efcda9f91002dc8e330ea64ccd240299e8acfceb567d6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/QZES62221651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ed5f0bd40b0880477d76ba9a7eca7b42a90b78600dab09e86a9b0633cd859f1. 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/GBKPL2091673.