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 0xf5d61e88830dbedc4a839a6f243c55efe241d9671ffcd21ffdef35bee6c3c6a4. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5f2190c-b1cb-4494-91f1-6f8e9e149928.json and https://artists.proofprofile.net/proofs/artist/e5f2190c-b1cb-4494-91f1-6f8e9e149928.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 0x50a040346d2f9f0769947acda067c022c463405268a38e669192ad0c6b7f49f8. 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/NLCK41401009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aa1c327f2c580ee590bd9d80eaec20e417b0ff21f72df67398606b01adbe70e. 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/ATME81100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x717daa3385cf394ce1131a638c24ae2a54247230c27cb16011176f990df883b2. 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/GB2LD0901892.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x450a375a72a1e1a1d6206c96351a438d44beb2d562571a46ea410da383dfdb61. 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/GB2LD0901893.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ebbf7769759d19f45ad0c9d5ed897fad62e009a3c91b4e1329e10bc56736c2c. 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/UK4AJ1400009.
Cuts Extraordinaire - Best Of Jazzsticks Part Three
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0141bcc104191c12905afc1c84e2fa512b79fc02187973aea11857283237bd6c. 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/NLCK41026623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc046d2dd3675b1d39c1d90c5b1a2c72105f173301c1c3f765f321c2760e4b514. 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/GBCJY1400117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314866f799e438a5cacc5c3ca1d7a945a34fd0f118d0f7fbd3ee89442cc8cd57. 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/GBCJY1400130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c88de6a9900e063f94190623d4df2bcbece538d3625d678cafe140bea63eb3. 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/GBCJY1400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf45725cab13be07c341c162da7526ed1606adc0cc044105bd7f20294b58e108a. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T14:47:39Z), 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/NLCK41400388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc434e5132ad4f91e2cc174f60686bb04d2bfe1e0e1673bfa700076f1c94cee8. 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/NLCK41400389.
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 0xa240cfd8a1418ef0d10b4773e983235cd3668f1f98a2189f1875984e1aa65388. 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/NLCK41060081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17a72fa1f2132e20e6f13a51ce78329467adcc8041ef113afb0acb2a900f62a. 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/NLCK41060082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bbe5563dfc121e0c1245a3bd7235a1cc306f5a0267ef7b8711d0286baffbfec. 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/NLCK41060084.
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 0x05e4b435e012d3ff8cb03cee453255297bfec74d50cc62240b2a5bb774c322bf. 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/NLCK41060091.
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.
The Stars Turn and a Time Presents Itself - Pulsaar Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8159e755f04bc2725d17b0279a2c6435b2aa86b15c8ab0844de978631ead72d5. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/NLCK41060089.
Decon curates: Ethereal Jazz for a New Generation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66990ef2f2052151d582ecf6c596327a533c38aa07ae2742a9f625d681361602. 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/NLCK41083855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e23aed27268b3eebe30d9d6b737f83675b4f15508e2016476d4e0a8429eec47. 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/NLCK41083863.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x594d1b86578111f79ee3d80bee4dbbbc86b14d1dc7fe7cfff95a471ced663623. 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/NLCK41083866.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02856fb9291531a2af650039aafd4cb9ed0d6c5cd257c9900f652342b0ce1397. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/GBKQU1225590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad23f60c311a065be0d07b729fca50acf4567a13b8198ed3df9f242447cc2c30. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/NLCK41045369.
Cuts Extraordinaire – Best Of Jazzsticks Part One
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a5a655184194a87aa3db50d843eed2246ea5d4d6eb0320cc22ad24cba77c42. 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/NLCK41019635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500c7541324b3e444acbd29aa63fe220eb0f8dc4d8931de832f2780470fcac53. 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/NLCK41018909.
Cuts Extraordinaire - Best Of Jazzsticks Part Two
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.