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 0x04895f006e59d2393ab2950067b1f97c2e606b9a63c06c47ebf009e861990efd. 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/52996f88-7e76-4867-9a3d-58ba5aa24531.json and https://artists.proofprofile.net/proofs/artist/52996f88-7e76-4867-9a3d-58ba5aa24531.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 0xb941f39da6ddec523328a88304e6284c261c57949d0432447016e6f07f48e0d2. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBLFP2436737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4c1581f89fbf9b71fc06c46993e10adde60d7e3901b9f883985b8769411600. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/GBLFP2436738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da44f4daef389daec0aba152dde26986acb8dfcc967b936db4789e64d8498d8. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:13:10Z), 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/GBLFP2436739.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfa4891b177a2ee02dbafe810471cc6d0367492ae66e9bac0fca42322011a90. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:08:33Z), 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/GBLFP2436740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11fe10c15822736f2efed7aae3b0d309fccfa08b95d8877028c2088e6353629e. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/GBLFP2436741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2364a65e30df7fdc61795b00d9f5c3eed84e9c16b112e1d3028c61df27a77152. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/GBLFP2436742.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cf3e276b9ff7000c45c348de2199507ccfb0609eb1dc2ff4875a071290004db. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBLFP2436743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451c1bb9e6ebbce0df8829ee466daeb452bdbc45c22290bc4f6b9065112303b4. 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/GBLFP2436744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x897a74b0df9b161b8a14160b5fa14abbbabb69adce399ff645f0b8cf20dbacb3. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:49:23Z), 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/GBLFP2436745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9965834bc86f7a1f9dbf44b09c3cb06989e1030754786c615fe1164dfe21f4. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/GBLFP2436746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dae6feba8fdfb538c10778f10f829a7db6c0e42d29def72a27481c1b2593cd7. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T17:45:43Z), 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/GBLFP2436747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822164f8b535ebef40f12da0875ef89a274fcf8b9d2f0ff8f59f1b2196c08e3f. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBLFP2436748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39a187260d7d34bd3d537800f78bdb89839e30d13eb604f30275682cee81a77f. 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/GBLFP2436749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10d3af3b7180051c3ca81134a705620a2f97334f2f92c68d6cdd1ac405e6c592. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T18:58:12Z), 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/GBLFP2436750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbb12ce37967c5df7f8b203108433d459786d2f20418ea445a8c07cc32c7c8a9. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/GBLFP2436751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafaa26dfff20c43c86039abd215b5d020efd26e08abab735f985d28f2772c1f6. 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/GBLFP2436752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a40b42f75d9d7b6588598ff8091d97d0d1abbfcdfc9a564d45f47fcad14ef2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/GBLFP2436753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987f10e2281d3cbb550955dc03334614a785b9e9f013b681e0c8c3a68068b12f. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBLFP2436754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73b56406156f332f797d3b03b44af265f4bc3d6e4a435ab4b687887b521b82fa. 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/GBLFP2436755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13369ee38e273ed675dc4981b3477a8ce65a8bb422dfefd129a5aebfb9aa349e. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T05:48:37Z), 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/GBLFP2436756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12c76680e937b9967e3d8613e9e18af0fd277d666fc0bf87367f56629b136951. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T20:12:32Z), 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/GBLFP2436757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f853d41a3f0682a84fd4ace7cb4da96f407fa6149f06e434016b1bab3eede85. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:04:58Z), 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/GBLFP2436758.