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 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 0xc8402195d38506898efb48a7d1e394d723fabb084ca901d24f00d3c9263610f8. 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/3994c4ce-66b0-41b0-9d18-d9d878b04ffd.json and https://artists.proofprofile.net/proofs/artist/3994c4ce-66b0-41b0-9d18-d9d878b04ffd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Till The Moon Don’t Shine b/w Sooner Or Later
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 0x9365b271315f67819808317ba546a463ed90b6b920a812c8117edf2c6efd52d6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCW62107318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x236f4d22bf91ce4b0cce5e8c7852383a3a545834489d8de386bfef0e53c8a2b2. 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/USCW62107303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89b9a75d3f8f0037de7b0a0aeb8c1fa23bdb723935cf925ebc3601d44ac1de7. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/USCW62107320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f47da901ebd961d5859fb9baa6b62c1f30bc7f81dcb4d84c2e1a23b5a4091fb. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USCW62107304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6df4ac29ca2cd8b550797a7240afc59b5b02493e0ac9d9fb6f63912f1bceeec. 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/USCW62107307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f60865b995c345e9352a154d2f76a8ee1d8612e3c625fd05341c85dbc8cba8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USCW62107308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969d9f7f0f8a6d234b08cad65685ebc506b7f8c889f18d67ff4505a7a0f27d86. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/USCW62107311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d313b5476539c7ebb2c63ce0a78083dc48f402e5c2353c67688fc01107fe569. 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/USCW62107312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a1d8cfe2b59fbb45def5e763cc18abb215c4ee8e3b10097e80013a3b7dbe15e. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USCW62107315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5543e12068998bb5916a12cf012ff3f77f5aff4a147e6178f3bda79868056413. 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/USCW62107317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5428981f9ffc042ce9d1e2d131281197970ac1c1b008c9818aec1c39c7385eff. 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/USCW62010506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c63dc570ebd6a8db3e908bbdb1b211085060ba9eda746924e1c25578b236498. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/USCW62107314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d313b5476539c7ebb2c63ce0a78083dc48f402e5c2353c67688fc01107fe569. 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/USCW62107312.