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 0x8a95db9143ec44c87c4d6e50d6689346ca07b5452348bbfd694087349250f721. 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/382437a0-0b7e-4916-820e-57446d5fb894.json and https://artists.proofprofile.net/proofs/artist/382437a0-0b7e-4916-820e-57446d5fb894.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 0x1764f3b152e4a3bbd66861ea4155f15e7fa0930379e18662c7a09f3da7857f97. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GX8LD2339853.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6ea75e7b8ea58ab2e2a8db68488b48a1154d1adf99d5989141c97b6d741527. 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/GX8LD2339850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x620354894ac8f3058f415913e7e2a3fef987ddbc073e794ded776962c9018496. Chain 2 (Bitcoin): anchored in block 958776 (2026-07-19T20:11:59Z), 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/GX8LD2390930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3889b6afc598f3c0e56c36c736c86b6c2711eab470839424de2269790024dcba. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/GX8LD2374112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x996c52b823f4b6e02819857894f9a24d74fd996e1f3a7d8febe8ee698a86269d. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/GX8LD2320058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c59f3afdee211084ca0f93a82ef60c4ec7e887427fdb91b9a43acec07efce24. 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/GX8LD2316700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89ae3f37c9ea2dbdce343c50a83bcd6a41014a29a395bdff9b587f007d19e5ac. 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/GX8LE2395189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a7a6b48e5d348cbb2f888e9d3d71a7801d97b996724696202c13fd4fcecffc. 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/GX8LE2334295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815d7c20eee0312fc111711a986edd6253a349bf64ac25d298e33b3e0c73daee. 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/GX8LE2366064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989dad9d0c02c9879c66b801ded4715ddfae41d834925616b378428ecbc54f35. 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/GX8LE2348077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4bc14934895aeb90bb94beddf56e7ab9c4023445e700b891eab872afe84bb0. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:48:14Z), 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/GX38U2352505.
Praise Jah In The Moonlight (Techno Version)