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 0x2fc3517eb874233d11336a261e3288780a6cba2df41ec6b44f1c64a78dca88aa. 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/69f0b8c5-6202-4c3a-8ade-5b305281ff50.json and https://artists.proofprofile.net/proofs/artist/69f0b8c5-6202-4c3a-8ade-5b305281ff50.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Modern Drummer Magazine And Blue Note Records Present: Jazz Drumming Legends
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 0xa33e58a487ab6835c53d2094a2fc2cd0b9be96564f13505b9b788c594bb1f46b. 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/USBN28800148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f5af4b703e7732a259b26b8cdb001b6d76e51d05fb55d57cc8e469a9daf259f. 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/USBN28700777.
Locomotion - Remastered 2003/Rudy Van Gelder Edition
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1c69cbaaee7f876409a4d1bba0048eed30f3c3ebf5c4e7a170107c880bb8df2. 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/USBN20300530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aa3d2bd3863f3363a2fa9e5c9236690c497d62af48b30d1877b6a9fed754a98. 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/USBN20000469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaef121fb539b5c69dd8bb67681e3b0d6fa0b40cd2c5fc3124a137617068044d. 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/USBN20900225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeddd7c3bdba6106a8c568cca4f408c06a310e3bbea514c2f0082a397df9ba674. 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/USBN20300301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249db541c1289cd9c132ebaf25fe5c299493bcd37a427e32aaf210029004e798. 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/USBN29600668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aaa2a316002c626a73f3bb40cacea018612be9910452c4af828f9de1f8509bc. 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/ES7710515301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8971daba4afb66f9bc08714ecdc3042d4a2672081f4f1876e012271574c2472e. 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/ES7710515302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1dfaba0b1668a0a256d01b63ff90a9ec8763e17ca94491f67472232aabe891b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7710515303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7113409643d8b7f1afdb8b7077dcb5ce04d005a8a75d2750d37236718d62b1b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7710515304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b9993cd06eaec5fb69fffeb0f090f8c12b5650da3926810152242324586aeb. 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/ES7710515305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32a9b2c4be26dc3bfaf499f693fffa8841e13783ac4351b3d39ae86874ffa29. 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/ES7710515306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3da9c84b6332326b69a7f5d3932884cadf1dab75c9cee75651b3180bd098678. 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/ES7710515307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659ff67962d66bb1cd4e29af30a58d25c1a4f2f1e53da7005ef23a1bdbbf9098. 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/ES7710515308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63b48f81708746de346ea3d6e4a4fc9a368a8c68683e140e373d5149fed7edf. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/ES7710515309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaad8fd339a0105585f35b7a9eaf026d26a7f611c4b387255feceb65d1b532586. 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/QZQ4X2500105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908e5c2418f9dbd7489aca66108c5b5044df045bdb31dfe8f43216851145ed2f. 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/QZQ4X2500107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaef121fb539b5c69dd8bb67681e3b0d6fa0b40cd2c5fc3124a137617068044d. 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/USBN20900225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7745996b379b77bc8a1231b681bc9bd44f94680533eac48b9a2d4b40f98a61bb. 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/USBN20900226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed96e045032fb7c148bf1db1f4f59ea764c498867fd7338570049715a94e6c98. 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/USBN20900227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d6c44cf27a0e647cde1c103b442e9c6b2d56ee761edadc50aba648689afd78. 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/USBN20900228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4baf783173220328f29f479a31c91918a01801498187562f91af7d816871e50. 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/USBN20900229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2034448ccad730e24c00da7792208fe7ff5a666fb12d0445dc86bf6967e0927. 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/USBN20900231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79d7490e9df7e7db6a86ebd7b2823ae9a9a00baadcde2077fff22b6b5c06bb8. 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/USBN20900232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3277d7e34e51e291ed5798f720368063d6617b29b4abc041e8663ed62e251cf7. 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/USBN20900233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fffe229341cd554a40352033634d30b56a0658b707c97ec234c3d2ede10b47e. 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/USBN20900236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2eeff9336120504c67655a991d845f52a8d012bcb6cb028f2374b2fa8d77f0. 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/USBN20900234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x185ac7697a798df37eb569360b5294c4ea771043cb747611af540452d70d3bec. 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/USBN20900235.