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 0x3b15b224ab4e9f2923668480728b9b0e8014bf9d5662cde564e6c906dd17675f. 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/9691adb9-41f8-428e-bee1-d43555af98f2.json and https://artists.proofprofile.net/proofs/artist/9691adb9-41f8-428e-bee1-d43555af98f2.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 0xff843f0d0b45b43fef59d543f5c98ae09a2b44b4c5df18ed9b9ae91888a98b07. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBKQU2459050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66860c6177b1dfc0691908cacb05b91f67eac45c719bf72a400ee8ddff00c120. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBKQU2459051.
Life in Motion (Carlito & Addiction Remix)
Bad Bonus (Paul T & Edward Oberon Remix)
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 0x7cf3b2dd64841f97cb11e67b0a6a2a099ed75040f344e7cb6d812e00010a1ac3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCEQ1210229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cd50106afb0b13e023b5921b3a26ee9f266a1e51cceea5a0732955013b45261. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCEQ1210049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf214174baa62c4f7ba6b3f5873d20b04fc024ecabdafe7b1bdcc77986d0d7eda. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRF52400029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ad88eed324b86793c462cd2c8eff7300ff78ac2fc9f260fbe59e83ba3c004f. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBRF52400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42f5bd413d22c20dc83a144ffc3246250f6555d36d079617a305507bbf2a66c4. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBRF52400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ee782bb420382b6334e70e27bbc35f956f6c5dfff13b030907980baec20c55. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRF52400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x391c03b4bba692f5c755bcd22b67f8b26a5b7231f0fc7a5786f24bbeff1b7eb4. 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/GBRF52400033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ae8da51e9c7326e3a4d7afc505eef198e0b9d5629605eded44eaeb90b3655f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRF52400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9663e46ad473147674f1f34d80a13d8b2dba755dd12a1b6cfbc3602557bea166. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBRF52400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba704e4a852bf6a80f571db56b083918c07b464d942d64c2f92bc527b624e87. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/NLM7H1700035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x461257b44780c34a89b75b05c440ca87691a4bde9acc5f99aae082f2bf8bb6e4. 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/NLM7H1700039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010e81cb19e4d88f4a6b9785c5859048769e2ecd2b1e1b04338e7ae01429eae2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/NLM7H1700040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7152584d898424c2bf38a85d89a1b27ffe19b5d4417f3c18eacac3130d51bd9. 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/NLCK41059462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b620f4ee41d2fe3ecc149b11198ef374d6eb308c4f4d948f273f1a3e52c021. 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/NLM7H2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x512e7d3b2db3627d3049b8237b1fd2a3fea14a56a5cca56a23348a446b271fe1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/NLM7H2000009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4985eea5a3fae31af2eeb3fee894b95b9d31169fa576b179e317c16c832f9da4. 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/GBPWR1510114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcd5e9bc78781ee5ba676a7b491d2d753cb8e5387ea718a951115011bca6dfca. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCEQ1100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a7af31c4e68d191d78cacde1e6b1032ae1827869d1e8bae98ca8e3b27789aaf. 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/DEM092500040.