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 0x7dfa8c15722c5fddf6ae6d7991fe71cc429229fa5e3a7462dc788ab90f1588ea. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/28123afe-8d66-4768-bbdf-91d7465d6c70.json and https://artists.proofprofile.net/proofs/artist/28123afe-8d66-4768-bbdf-91d7465d6c70.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Into The Storm (2010 RMX) / Purifying The Evil
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 0xa10d17e8e4e6722ac9f07952c5b08fccc74a8a368ec8ae658f594f65e76de9b1. 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/NLCK41015621.
The Way It Is / Stroke Of Genius (Jazz VIP)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a5a655184194a87aa3db50d843eed2246ea5d4d6eb0320cc22ad24cba77c42. 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/NLCK41019635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b46dd043440a480f5f74e0f2da969382b17223054de742325f47f98a6e58ed. Chain 2 (Bitcoin): anchored in block 960503 (2026-08-01T03:41:24Z), 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/NLCK41019634.
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 0x74c25585659f80edf40bf5a70ba16f67fe145f7909514591cb9f2bdfd66fa77f. Chain 2 (Bitcoin): anchored in block 957830 (2026-07-13T09:15:55Z), 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/NLCK41021376.
Liquid Drum & Bass 4 Autism presents: Redefining The Spectrum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b8f729f11b3e122e6b26df05cc2325785efe16cf9529913565f99265110f5a. 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/GBKQU2050889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa7d64a5a06673aeddee53f33a8a6f443b3f2c635e2d8efedaaa3054865bba9c. 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/NLCK41060086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fb323de3fb67b5c2e892d04eea8b4555b7917dab296534fd12bc619ee61341. 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/NLCK41060087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2074231aa59f068c7aaab5aa7f7e3670841f3cb1bd58677bfb67984dd3e87c12. 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/NLCK41060095.
An Indiscreet Proposal - Flowrian & Simstah Righteous Dub Mix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a3f37207b26d500b84528b0e6c54cf9edc5c0f2759c59625fd94c713061af5a. 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/NLCK41060098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61db9ec324406742bfd6c594bc508e4d569f6ab3f9499110ef1ddc847b6faa44. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/NLCK41060083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe178d1369c9bee1277ada747112f604f808a2775b502c64ee83dd5a8ea465f8e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NLCK41060085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857ecd62f225cf5b1bfee17ee3122f65ec6ea6ef7644247cf22a0240f2f256c5. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/NLCK41060092.
Decon curates: Ethereal Jazz for a New Generation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x203426a2e4b4175dcaf62b5681438954c3f66906005e16ffca93307a327d7b2a. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/NLCK41083857.