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 0xe53ac1b2766d2520aa2593c922df8334aed1576178618a2793ddf64fb9f2aa4a. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/92dc608a-4cb7-4b92-b888-e4ba66c28b1b.json and https://artists.proofprofile.net/proofs/artist/92dc608a-4cb7-4b92-b888-e4ba66c28b1b.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 0x17a8a7b50062f84c0f54c6857d2c8cbd588655eec0afacd7d8dbc77c53cfa695. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/RUA1D2015038.
Плачь и смотри (Motivee & Alex Menco Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2905b11e3531098b8e6f65d2493c699a22b0f90b0dcfeffdd19de455baafa26. Chain 2 (Bitcoin): anchored in block 957522 (2026-07-11T04:46:56Z), 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/RUA1D2021595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88413a18ea9c10efd74c4e7808d88b111d389562e5b500197376ca53024132e4. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/RUAGT2211566.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2a99288dbb6b192bec1ed048512d82ff3cb00e495550120109ef995d5510fb5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T05:09:08Z), 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/DGA0M2361979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x781bc2d2cca5e6662f00e4e3b4dd811634c735566f2fae26b7806e303f9f57c8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/RUA1D2479390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e4fad1f93da2cfbd55b545a26e0f45e5b21ae54ff7da7828023423d5aa12da. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/RUAGT2438991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4d1721bf7cd2d09fe5d92eb9f2e4e926631af97bb727ed0dd5364cb709a3dc. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:49:12Z), 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/RUA1D2502910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23ba44054e927f056615eae1346ca28eb6611b9a7cdc2e335ed2b21f4cfb5d3. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/RUA1D2542113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ff3f5be236e74590b6315e4f9b79cde82c603a904ef5afb87421a847c7eb5a. 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/RUAGT2527343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6439c2cde07d394547c18a5181db2e7292520ee6d0118b54dc23b83a2dad9da9. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/RUAGT2560751.