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 0x0f294eb74c3b348868cdeb3b46cf85996c27ccabb3b3de603ca63d0ebe1a1ec1. 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/d77169d6-d7eb-4ffc-a3df-7408039141a9.json and https://artists.proofprofile.net/proofs/artist/d77169d6-d7eb-4ffc-a3df-7408039141a9.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 0x984f5bd176a081eee4e49acfb7a4654ed86ab9a187d30ed09664bed75315652f. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1904854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd77a9625963b74ad7bef52dbb2e4f19fb03e2e31790261cbc4cf1eb05465b8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1904856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451282b3a3a9dec8fbb5b6d4a6a08c1bbfd23e96029081117ff15d287c5fc683. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1904857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48045146d5c9f070b664afe8075acf9b2515ea1454e66b54366c1bdc0c80bc70. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1904858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100301626bdfbbdb603bb13edbb3849fc82c3cb5823fbfd3f1072077dbb45c31. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU1904859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b8b048a0914b52ee578f551055e7ecc59fd88ca913ad03dcd86bcbaa5566a5b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBKQU1904861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x890119c5accb4a4e5f4e58804047b41bf88305afa462cbc434d117d9de081fdd. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBKQU1904860.
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 0x97c5250a79e4f2b855e5fdd4214a88a7bae21a4ae14286fa69c4d97e4ce1c36a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/GBKQU1904862.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbeb4bc5200499aaca889d575935d82523f008a0231b4cfffd9ee2a47eeb035e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZWDE2491936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4e652ae2d706cd13b5f4ea231a8a5c14915bdd3ae750b6b465cd0f9b54c9cb. 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/QZWV32415286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x082d262d6afdb51e5e9f42115934b2d49d5906e4f061635b4bb13007e37d65c4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU2469836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed38c3d8ed39281bce48f326d3fbc2dec38840c205b29990f1c4a17e8083d9d. 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/QZWDE2410025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdd58c5913b66360076062a2fdfa73135127ea1e45a7e175aabf415775bc8a82. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2444178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07277cb5463bd835f4c2a44c068945578ddb669551e11ed1851e915147ba4a4b. 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/GBKQU2448258.
Smack Alors On Danse (D-Fast Beats Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a65e81d3330bc57ae8669d62215f65cdb5a7408bb13951eb60f6a1788a01fb0. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU2438194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe60ae2aa9db17638c615381a01733d4b84e20ab4fa34ef0edd653c1b73cf9be. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2414688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x692483fd04f2dd1d5b159015601604016fb072e39768dbd0f322d38cbe119109. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/CA5KR2437793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb5e4f32dfa2835f5f7c5710b36f3f265f8ef43cc05f8b2627bae5f04a830f2. 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/USLZJ2470769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3e79acfd5e55f7b3e72311679b1e64e3437a8a1321d56447439d110e475fad1. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBLV62316665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104370dba8e20db4293fbf9fcc48013548697b3e979113f89a6175ebd14ff517. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/GBKQU2395544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649efa214da8607eeb70fec3008b804017b35405bbfb0b7a3700f742f6098b72. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBKQU2395522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c70445e2b8446a5b4baad09a30deb8cd0a2bff66b149f65aa5c6f6c403d68f5. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBKQU2390375.