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 0x51fa5cfcf815dfea9087af9ac13e9da2ae24e84e0238a938852801253a624721. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48304d2c-176d-4974-b2f0-983c6bbee30d.json and https://artists.proofprofile.net/proofs/artist/48304d2c-176d-4974-b2f0-983c6bbee30d.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 0x53a70d67250e185573cd9959624500e114b361251e07061f9f59d93c337a203c. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/DESH42100155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7234c01ec4c314cced5b4a1a0f7c0d838f90d3283bd7775c573f248cc7340346. 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/QZMHK2438098.
Burning Man 2022 - the Altitude Lounge (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d7da30920b47edfef36a73f356205d503980b9a36bf86a9cebf4293357e7460. 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/DESH42200116.
TOMORROWLAND WINTER 2023 - March 20, Live Recording at Mountain Stage (DJ Mix)
Sky Acrobatics - Tali Muss Remix - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0fa966c44dc877c66b200fa27ceab388944f5b8c0cd47eb7c67fa9745ced4ae. 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/US83Z2303732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1119fa7e25ceea382819fc1b52c88901fee3c54e0afa2fc938da22bfd1bca286. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/US83Z2239843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7bad991e07b0b588439e674963375ba9c58301ad49e2403c4cf6e99a926abae. 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/US83Z2215978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481d2f0a53abf415b3284515e10f15f679b9b1ec0ed91921c54fd02eb775995e. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), 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/US83Z2141409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27787db18372be7c4a86f824d599675bc589710bf8ec4a732973de93c2ee9abc. 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/US83Z2234887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4906734e3d07775c18217a67dbd6b4cef9f9788f36d7c050a2f982c15a181f92. 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/US83Z2241715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x845454bf52bf05a70f6b14a31303decb52851ca0ea32d980c9a7ec308dfd6269. 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/US83Z2306024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8eb1655baafb7222205d524973ebc670a7c60b0f86cfc64210003617022288a. 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/US83Z2306954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2e7c0abb88ae68eca3558274d11558eeaa75aa21027baa7fecd9dd5d939ffb. 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/US83Z2239771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2062046bbde73b29ec3d7cee98ae2e22511271ed027962f61ce0ac19ff9265. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/US83Z2337563.
Burning Man 2024: Live Recorded at Duck Pond (DJ Mix)
Burning Man 2024, Live Recorded at Camp Walter (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a623564967f3d669082ec37ddfe90e8f80889b7fa8fbc8f80b15a275ff9c61. 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/US83Z2037467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb22d18cfcaa32f31b359bbf74f08e18acd74083469bebf27c86ea915d00240d. 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/US83Z2310285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15a6cffcc7c35516239046d27e4b7bdf6170b941d2d950e30969a526e6ef0a22. 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/FRR642301969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ace8f3599d09a01b67470eac30866533a2a0dbfdaedaaf77d179c8154aef894. 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/US83Z2341910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc8fa181a3f2ebae4235ff2f39d90829b4993d96fc328a087e6604588f616bb. 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/DEVE12400037.