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 0x9f69abd526bc66842c3555330a2bd68de640f4a5983aeec47a4b6091229b05da. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f09afbce-2d05-4ada-8f1a-215f7ed3ce79.json and https://artists.proofprofile.net/proofs/artist/f09afbce-2d05-4ada-8f1a-215f7ed3ce79.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
There's Right, There's Wrong & There's Life
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 0x4d4e4d0de9ec4e11638baa16ce305020f085b68584551cd26baf866fdd2ad7a4. 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/AUBEC2165086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb22e0fa089f35bba29554a87a9e47dc55c1483a04e878a8b47e5e6a8ca6cdd5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/AUBEC2165088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb849e4748c65b6aa2bc189a3138823168eebed553b4cd9c2420007f28108b46d. 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/AUBEC2165089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe984000997d34bda0d622febf52d4a3b1ca59fdce3ad960d82abe9341c7d3a55. 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/AUBEC2165093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0349147db23475a31f29633e51843d9d925a2f3ecdbeeaba418738fb9feb09dc. 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/AUBEC2026427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5296bf3d8ea51bd3f668995216e08a2084373b84d6a18cbcf7e1bda83c9fa138. 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/AUBEC2026428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9619b42b5bc9ce2bafdd289c82b79be7a6bbec7e9e7799c0fd1a82fcbc93e4ed. 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/AUBEC2026429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ed8f20a0e7543214d422e7fc61156fe781eae57076e74abed04110321be1e2. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AUBEC2022794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809ffdef14171bfa430096eb4d7ae588eb23492ceee416df008a9489998e8642. 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/AUBEC1816284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a53e2af5d88a97e307cd48278449baca11e43d042a2019afd71998fda0761d. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/AUBEC2420856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ed8f20a0e7543214d422e7fc61156fe781eae57076e74abed04110321be1e2. 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/AUBEC2022794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15e7c0976d1f3fefe5e9bafba9bb5d41894eb9bbf3e8a29bac3dee1b28248d1. 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/AUBEC2013922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69b910dbe18b7e5e212ecde3db73c2e04468750fcf56c2209056d9beff6a62ee. 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/AUBEC1903934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1add90ca14339ed4e675f8d13679918667a29489dfed3fef494744cb8a3a4ccb. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/AUBEC1828843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde9d97c31782f079ce3665579562d106f1fa37dad46a3f4dc1a28cc0d872b420. 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/AUBEC1828844.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2d9a9b32ec164d2532dbf90c9af5aef7759a27a939a5c11687a2dee2721720f. 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/AUBEC1816232.