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 0xaad6100a571a031deaf09c87d67f7dbd0f70c57831767d725e1e3552289ddd8a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e02f06e1-05a7-4b81-bc1c-152d95689cb5.json and https://artists.proofprofile.net/proofs/artist/e02f06e1-05a7-4b81-bc1c-152d95689cb5.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 0x2ef166f84f320ccb0c3876b0f0405c4076cf0088d1bffaeaf36bc743688efefd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/CH6541652526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaabfe8a76e2ad8159fa5be7e9f03c0c6ec07189aeedb4417049f55f3184d05a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/CH6541652525.
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 0xaf59cad4fdaa32459d83414c2d9676521cc4f0eee9d7e66c6f6a47d488ce9c7d. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CH6541652524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8791124849816e8de19e7e424b15c7b41fa7305a0cb37df9661405156a5be0. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/CH6541652521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd74c302047b39dfba2eaa371832e3c5919bb71e819034aa658a7c2a3520157d2. 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/NLUL62000016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbe553dcbae1837fca676d678922c8caea2801196c395549a4da3f8a9d0a61d. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/NLUL62000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df9f82b8694ff1acf6f169892de35d7b31009ad0af032a8cfdbc6214e113b3f. 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/NLCK41064414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6612b75e0ca51e69750cf61447d1aa099ffb8c40e58a558f9139dc8f704a900. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/FR9W12006139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d09f2805411b44ce9012b3b584045b568653c9c1d841565414d0911209d7349. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FR9W12006141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef466c5c65da9c55e620ea64e3b1bed1cecf422b1e2cb4951b3ac0c229f7d712. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/FR9W12006142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe196defca70e41c02246a88e327e32b340c56a2990cf506f1d77de3a43e20972. 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/DEFB42100540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f8ba9ef1423951c8bf6a628c44668929fcd1a6d948d90e5ebfd991095498033. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/DEFB42300717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2affc099297fd4c5bdae03902a6ea2e01b5a30fdd98669c37714d5451d8f07. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/DEFB42300718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47c59b2fba61cef5fedd132e731a3d9c6d8fe74c8bcbbf143d8c662fb75abad. 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/DEFB42300719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeefafc1438925091f7fcf2dcec24face1890ae13eb654b872ff702ecb32cafb8. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:24:08Z), 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/FRPZ92449980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702c86958f9a2c7bd5c61a46ccb06b48611f6d7120f887df752a5949eae7b31e. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRPZ92449990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd08e6256b3df763c1fa1f208ce27c46225e3d1617d119a05039aad75e4c29b40. 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/FRPZ92450010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5a8142408776b7126ea638f69ff5bcda78586a38850d71219782e1f109255d. 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/FRPZ92450060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12f656b41aad88cbeb73b697bb22f75de873d963d4705e7f4f410c803851487f. Chain 2 (Bitcoin): anchored in block 957774 (2026-07-12T23:51:20Z), 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/FRPZ92450070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d38ec505c03187ddafcc690e5047ca1863043fde8b5024215cad8b3f05e21a6. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRPZ92450080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ccda210c72a4a50d01689b176f1c0839ae6422f600d95aaf1677a60bd7da4d. 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/TCAJM2511920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d4ed49dcf069114cc2820e0427ee4fe7aa5f588f1cc7cbe41928a134f8ac4ba. 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/TCAJM2511959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaadd9f10f582fd26546c606f13ceeeb61f8bd12dfa0b2a146836c5a8c4abac9f. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/BEN582300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9a2362e6149299c10863a3c6ca6147260389747ddb9b3f0d6d1f30704d92b61. 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/FRX872040624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17cc3cb3f8aa6cd24e6ba9cc6e3c916933045da97eb128bebc5507677e9e847f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QM6P42055440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x558994d73d2508ffb0ef347c344368174d82f4e0340fdd31bb34e49c767736ad. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/CH6542010775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944edc43004001a04b82d17a60a1a8a3b19fff8fffb4bf078af04e2b25915fd1. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/CH6542086666.
Utopia Vanished: From Enslavement to Reiteration
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c9b4f2c8b180af7b15712b9c63aa6ad2a10eb4ae9a527d589273ec2a2c0294. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEFB42100607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7c27a6bd4f4e2720368eb379984165ebb9f53a09db659caf2f1c97fa948a6c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/NLCK41068340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70a057be5b804cb47ddfe3b4b457056db2a9ae1ba5a2d604fbc1cf90ea9e1fe7. Chain 2 (Bitcoin): anchored in block 960303 (2026-07-30T20:11:13Z), 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/QZES72408156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13117c6b10e11c926a8311a402b7139e48f7cb9af41c496c0dd98a71acfd8056. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/ITR832000032.