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 0xef5b631fbf8db665dce1ea40cf3745efe5463cbe291da1afd8591ed28dc30d9f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd92caf9-10ed-47b8-b522-30193e0b5f0c.json and https://artists.proofprofile.net/proofs/artist/fd92caf9-10ed-47b8-b522-30193e0b5f0c.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 0x6eb378ed87b689a966171a42bb198222d514ba2025965c60fe17c4c2bcc00afb. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/USQY51307612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bb39a3b77d55c8293ccba48f193819e631b28be2bf9fa9bbba8e1b26009bfdd. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USQY51307613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86cb2a6fca25f6ca422f739e3820df6dd6b50650a3c21c0135cd775acd5da094. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/USQY51307615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b0b6e20df5bb455b75a09baa1788b03e83bad16f7285b4a988bd262b924c057. 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/USQY51307616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x158017eabc555fe5acbced7623b65cc49aa820ba3665db824b3ff0ac0b252f61. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/USQY51307617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a24fdd84dfacb8d6f1c43a6f604f38b270ca2c9969efd9d667ba06d049417cb. 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/USQY51307618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9648ef9c493ac338567e033980c595fe950a53953bb56c14a53367124f77e1ac. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:18:31Z), 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/USQY51307619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x893c9d0cddbe9df1bcd1502b557808a57339041a1618c67b7e842674b208aadb. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/USQY51307621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b74d216cc46ac8b56393a61e7182a629652ea7ca23ff123cf1c9cbd0d43538c. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USQY51307624.
Before You Go (Bonus Track) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaf944600f6f2855c4ae35b0a68569c2e8bbad3322d3f4db7313b54200a6d6d0. 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/USQY51558067.
Don't Hold Back (feat. Dylan Germick) [Bonus Track]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7992521fbe57df3c6e79871dee74d62b625c120a376f3c53f1ded2517ea0ca. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USQY51558070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97ea314af95160b2d34050f8d43cba2787823d877d41e295057a7fdf5bf6efe3. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/USA2P1674461.
Beats Still Own The Rhythm (Pola & Bryson Remix)
Beats Still Own The Rhythm - Pola & Bryson Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf6dba3d32c86a5c37236b83491fc6a13274384a19cc25291b6db04c11e0fa87. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/NLCK41043829.
Like a Feather - Bachelors of Science Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cba26eb402a3b585c1035840ec4ac984428fff6bf8ea9f0a045da3e415f0d80. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:41:55Z), 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/USA2P2230768.
Ghettos & Gardens - Bachelors Of Science D&B Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a9deadae8a924d7f92daafa492d55cc8d1f4530987bb059dd06cb91ac05ccd. 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/US75Z1210110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x748368612060311d2ae07bc64241471be779bbd110688517a7048776a105e33a. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBLV62101738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525cefe132ae8d0b7b5356aa440888ea36b31469857f23b964c41770a06076f6. 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/NLCK41014207.
Liquid Drum & Bass 4 Autism presents: USA vs UK: A Friendly Exhibition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x382ab58b710449d3ab19fcf57343854cf3d9b17e44acf985747289573f04ed75. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/GBLV62200262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dd67ad42f4eacd42ae4ceeaf51e41a91ce9abd1a37499810c9a1e93bac6187. 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/GB8KE2308591.
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