1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x38aced49e618dabca15fdafa7f2e062b821267259b0f00f161c6b39b783d8f57. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/233c090c-315b-46ba-afa7-c7b27b9fef17.json and https://artists.proofprofile.net/proofs/artist/233c090c-315b-46ba-afa7-c7b27b9fef17.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 → block OTSBitcoinBlock must exist at that height 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 0x2f2d498762bd034ebc5447d83d2021a68ecc200949550eac453f985c11b2ca67. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE4MI1700601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76deedb9ae32b5c7a23f3d6e1b2c2db31791d9e4193051733ea0b1df9456bd2. 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/SE4MI1700602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8f4156e537472b762dceee37841bbb76cb12d4076eb2703caca77e13de517f2. 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/SE4MI1700603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0805a4cfb1823759774bdef5d87f9c1447fff33cbf149aa9050e510c6288bc. 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/SE4MI1700608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2aa990c34c568b5d746b65bf174175cb542f04ac4116b3fd15e2d3e76bdbb5f. 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/SE4MI1700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x385ec43126c7f52cb1b4a9aba565a7dcec1c7522503dfc1dcbee510485980cfe. Chain 2 (Bitcoin): anchored in block 957820 (2026-07-13T07:54:01Z), 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/SE4MI1700505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4106f54f551c180b83c52c87eb7c4073299670a63dd41544b798a2c9e3533e2d. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/SE4MI1700506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3eb06cf3de643007510477e0ae6907b110606c2398590f871711d0f163b3821. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/SE4MI1700508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b790c7cf6feec4d5b68281a8f44b0873623f16d295b9a09f9038bdf955e45a0. 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/SE4MI1700509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ac42ddd9472005262c3e62f2f319be11df2694272564986e4b6a1f5bb686e8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE4MI1700301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7457816cfe594663e96479de7bf63a6b441aa47e6d0b17a804ddfb4ba3ea35d. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/SE4MI1700303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24390a663a101fe960a6ff0b6568904dc6bcfd55d3232d97ea673e1a761b214f. 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/SE4MI1700304.