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 0xae23e7c49c76cf0885913dfc0589925f66a26891ce7e807027a9f112cdc6af42. 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/1a3ab6e2-8228-4e50-b4a7-32b0d164babd.json and https://artists.proofprofile.net/proofs/artist/1a3ab6e2-8228-4e50-b4a7-32b0d164babd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Celebrando Esta Navidad Con La Orquesta Fuego
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 0x778525bc308ee1fb724f44e25dfb7af428dabbfd2b5e7457d09ee1a8d1c96b23. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/GBMJG2411225.
Somewhere Over The Rainbow (Salsa Version)
Celebrando Esta Navidad Con Orquesta Fuego
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7e8090b81eb1b28aa489f1580a91bafa2dd8b147d50f6d7e670b292ce7ab5e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:02:30Z), 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/USHM92544918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b03aff40f380fb6ef6d2df24e36ce3ccdbe4f44e230c503384638c8fd5ba97. 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/USHM92544919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5405106aa33a38381617e4b1d833f3492b7cb9ac41439e44add7ea0970f68fb0. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/USHM92544921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe3503357641b7e895b7f7bfd624c3782eaaba4fef4f5a75b28ea35ca66f33c6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/USHM92544922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb46dcaf8ae7ed1d1fbc21b540025e59b6135efb77221dec7e78f7c1e6a3640e. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/QZX882500595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6bebaf8afc8e70250c3cf96ff3343305e99950e96bf36f4b2d3a71c95dca01f. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZX882500596.