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 0xd8592c78a288434e37ef40857c12d35189d390f5403b78a95128454f7f6101fa. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8b6b3d4-a6ae-4cbf-a7d8-900343b41ccb.json and https://artists.proofprofile.net/proofs/artist/f8b6b3d4-a6ae-4cbf-a7d8-900343b41ccb.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 0x09e657e1d48115a857a78c333ea28a63c7a7be8e8a2f56d8e26eab7bea471f63. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBKQU1757593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f774b505fa3d6db0fb7ed95452a4ec50aeea166452b0f898097b2a8f77d19b. 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/GBKQU1757596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28593a3de1df39bb9b6804a111dfc5bc15921572934e852f1215711321d08030. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/DEBG51800019.
Binary Structure (Mixed By Drunken Kong)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19bff038f12bf81b702c92dc54000af6972f4e95bb2ba5fa5d51655ed37428e6. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/GBKQU2089737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355b9712076a8edd216e26344e89288caa60ae21c02e75f994733983265ce1ed. 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/GBKQU2177087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5a1b96bf43752de85575218ebe487970ebdae515488ff84d2736ea7355c228. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/GBKQU2229122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6eebd4ea949260df815eec0969bba37c1452a492beb8f17e953ff1ca9b2f1dd. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GBKQU2293096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee0518c04ded3cde344221d9d0628b71c2881bc54093bee7debd2dc31f595504. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:37:48Z), 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/GBKQU2335055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5772549a04685860a4771a4fb0d4644c9e0d56327293e28aed3736b854cc4281. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/GBUR62000612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacbc3158d5931cb8cabc76a50f80989c088025ab25c167c8bcba5b133d4e5e4f. 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/GBUR62000613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc283bd5c7c8e62969c9995b07f63025bb0fff880780ae0fec24b797528fff1. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/DEPU61810002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2775e03b1bb37f2303cc18a3d7c36cd30ca05162b44c65395a93710e7fb24b87. 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/GBLV62315869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a2185f845bfd3fb0b383a43f5908e3f303200ac864b15ce22002cda3f464a9. 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/GBUR62000772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6316b6cc3f0d9f8995497d0140840867ae8446d82af5dc67312269b44a15c355. 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/DEBG52200166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c3af92ab142f89b72e1c7e5bfce6a2ce6693a3a747f4530459358bdf181261. 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/GBUR62000955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5215b0cf3ca3de55ec14ffa371c225d9c123bc72e74e32e0ab2fb32e0662361. Chain 2 (Bitcoin): anchored in block 957834 (2026-07-13T09:42:16Z), 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/FR2X42579765.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d675ffab89e0fe5f792d84fb3377c027a4fcce7ce9a98f64410f5f2c3eff06. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/GBKQU2596893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aab158feb10833935ec5b092c0e9a740f389bb34b9cb5f5b6df63f95b4bc46a. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T10:04:31Z), 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/GBKQU2596894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93b35bf613f5ecfa606ab91f1b1c68861bc1331d9003f7d4247db8a05ce8d4c3. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBUR62000894.