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 0xa9af44803751ed58d548565ceffabd046aae126bc815e3889e7365351f33df4e. 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/470469cb-8921-4578-92e4-45879a2a18b2.json and https://artists.proofprofile.net/proofs/artist/470469cb-8921-4578-92e4-45879a2a18b2.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 0xf81713b26e83d92a68a753853ad716b0774b75bbf915c23f4bf69d70004522f8. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZGLS2467704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x357b2ff11c6eac3be1c5f35ad1991ee3bb0f1e8f2ecc96440e2a491d47aecf85. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QZGLS2467685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402d529b9d56450319df157c308f1f3a4523e969c0d3b2202d58822cb30ef792. 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/QZGLS2467686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902b0309f31a04e562a09401740444dfe458019b33cce843b89dfaf024c0d9ac. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZGLS2467694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaaecc337eb3341615cc9d701cd35b5d3fbf51c3940a98d63adda7e1f0f5b825. 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/TCADZ1817360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51cd992eff4e82d32f8c4d8ac71aa22359a1c666b51e629d7a9c0163644c6ac1. 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/TCADZ1817363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9d7d1afa79609e1b3161c230e347e06d648c8b7c84977d554bc891faefcd472. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/TCADZ1817367.
Comin' home Baby (Christine Keeler) [Live]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119074c52756929736b1b331999b908775f557f5ad5f9bac64f4f33da84647f9. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/TCADZ1817421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76e265a8d7451de2661ea7e0e2005b0ee019b5f016a6985c87eeafd6eadca1c6. 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/TCADZ1817427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32317baa661aedbf3823ad1843cb4d0a3dd69a2f1e09a48b47315e79cccd4563. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/TCADZ1816854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50090e9787afaa3b2d0f92a0953d7bdeec3f373f666580edfc8116f79d98b672. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/TCADZ1816869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5b23005867fe1f2340421a58e59ea6b6e1ef1e5940411ccee7488c5e7f2306. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/TCADZ1816872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c997c83146a3af25865a8d3662e31caab021b8b17d8b8116204fa6d2b11d27. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/TCADZ1816875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425790de78bbc0028301a21f35462b6970f6f5dd6d40cf34aac5f3fe3d906a5f. 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/TCADZ1816878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5002a23065cebf4df2994bfae218629764b68c42d922181ee1a871457f9bbd2. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/TCADZ1816879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01792e2609bec10f8dca1471aa419ab732159e7fd70d060768f847f724b52326. 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/TCADZ1816884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939606eed6f6a6bfa097f8597ced7150df5cfaca87b447363028d5b298f03a68. 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/TCADZ1816887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dcb671cebeaecce307694a03f36ccc08e5c2a9d8a1a23385996270a9ddbad27. 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/QZHZ52087961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe504a45f4fd4745623cd7b457d7ce2e70a8e9b1b2db7d808aaf3e5033930fdd9. 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/QZHZ52087962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d15165e3dfc1d6ade99d3e142158d920738b64d5a7a38a6b1a522eab88372fa. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZHZ52087964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668ce0eb15e6b6afa3eb04a041d5dd51c62238b75b63fdd81f8c703b6df53eba. 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/QZHZ52087965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc3b804cf7d3ff19b302fb3fb971d65e4eed10d0e8c8f51aeeff3c2c663c939a. 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/QZHZ52087969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe2efa608503a9268d633205548aa8a0c50d1c6024de05615ab1af42156dbd25. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:36:56Z), 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/QZNJW2185774.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde53661ac3fa28d302afa98594637ca0b105c5b8a182a3a8582bd82081bfc027. 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/QZMZ92269837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637e1a7cfe4320dff5dba96c6f967d2d0f6b96cf936d64bbc257f56455047608. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QZW9L2214273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f17e9b115ddf73fda1a2a6f44bdaed8602feb58ae52c42e30f59065fb242df7. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/QZNJZ2439010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49babb03b2bd0fbb6d6184f6b671b233eaad6ffe39541939a68dfd7968562904. 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/QZW9K2401684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fd5c4f0a4aac92e645f34cba0fbebbd08337fb0a91cc69761e48ca69734008. 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/QZW9K2401685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeabe31b520361d69d1b0b3e67cf3c1fc72018369822779c4d76298e7f094ce1d. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QZW9K2401686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d09010d16fd8ab339c3076c867f38d02c302f2e7cc837d7106c6a181f5c8ea2. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:39:30Z), 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/QZNJZ2304949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d31bf115cd523ba3d043e208f6fbaf1949b39b7f6d638064caecbcd45a62eb. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/QZW9K2401687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50cc812627a50f0383ff0b3642659dc26e1dad71d221a866a672632174b759f6. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/QZNJY2463096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5547fe48397a841b50b7800d832e044e61c8daf46aeceb8d9fc3e8053302d904. 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/QZW9K2401688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6e16ce983ac92e1f0dc7e385f951d0394d08746fa2bfef084970a098d790602. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZW9K2401689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e582d44dd07a8cef38c5b73c297fb5096cf9f4d0b5ad2300eae57fb52db1277. 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/QZW9K2401690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf350d306c93fdf7d64b21ec3c8d2fddebcbdae44a843ccd3ba0a20e7eef5bc92. 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/QZW9K2401691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e582d44dd07a8cef38c5b73c297fb5096cf9f4d0b5ad2300eae57fb52db1277. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZW9K2401690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd2cf3eb126f0609799266abf2fa353c29ec37285cf28bf0fa26d9673f4a0126. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:24:41Z), 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/QZGLM2592753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24beeac3b62438586cdec58e665592c8ddbfe567453827caeeca0fe6522ee682. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZHZ32134233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24beeac3b62438586cdec58e665592c8ddbfe567453827caeeca0fe6522ee682. 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/QZHZ32134233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd86b0801d0c313bcfb065a69e8265f44f7beb5701537ec267a29631ec05d58f2. 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/USHM21812135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24beeac3b62438586cdec58e665592c8ddbfe567453827caeeca0fe6522ee682. 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/QZHZ32134233.