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 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 0xd375ea13b83b494ff340369a81d8f8c960e087cc778f0f8ca0978a1dcc609350. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/44765078-a33d-4afd-baeb-44f53255d0e9.json and https://artists.proofprofile.net/proofs/artist/44765078-a33d-4afd-baeb-44f53255d0e9.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 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 0x66172c6c20d9d4127f457b52e2318f9ee9b71d15c29f13641f06e214086ccdb2. 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/DKTL71200159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58d5fce564eb6d779cbad26313d65d01549c1488f7834839e09aa2b231a63a41. 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/DKTL71300198.
Deep House Vol. 2 - The Finest House Session
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2876bf54b4e9e22f030118efcfc352565d106d6f1d5357bacc3d993a9eda2b. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/DEAZ31110288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c64ed367f6bd871af192a716ddf26ff1dcd1225c58fc4222f5bacfb3a5c297. Chain 2 (Bitcoin): anchored in block 960241 (2026-07-30T09:58:01Z), 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/QMFME2253534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed72f517bd2a4cef1503deedd3088fb46f273b44679e5aa1d846086653c4ea60. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FR3KP1402620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03893ff2e95d0824a0c24afdefddf182bc1203937c4cd1615d5b11dde71288ed. 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/FR3KP1402630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17d99dad38b96a7dc2e888b647d07b992437fafa9340d7271c618fc3eeb7364b. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/DEAZ31350043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa714d48e8b0bb247d5326879caeeecaf77fb66163c9d0896896db1a81a4a32f0. 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/DEAZ31350044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59ef00e34ed7dd585c761b1e174f6336e75c28be67f5a8cf9306752de59dede2. 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/DEAZ31350045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f6e384a703703d98cc13b5ce283edd96ca7785975f34cc25f6537c7c674c7. 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/FR3KP1201790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564f6c284e159059bbdc550466a37c87d8dda99361c0f431ccce91689315b4cb. 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/FR3KP1201800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3733ec163fe99884bc0a6e25f4ee570320a25f7235ea6bf2f97a162e285f49a8. 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/FR3KP1201810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2688b78027405dcd1877d45cdc17367e36e30fd0faf0bb6a43acb98467726f07. 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/DEAZ31019436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea171f0cd1411ae7230a6c49adeef4fc71b60b0d449fc810e971a12ad013d26f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEAZ31119569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93aefd4cb679b4730ca491a36c378958e99569a00455d7e84075dc3838a815ad. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/DEAZ31019435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2688b78027405dcd1877d45cdc17367e36e30fd0faf0bb6a43acb98467726f07. 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/DEAZ31019436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fff790db44aa8c02e230f0b011274e880051aad445bee725409f3589a69b8a. Chain 2 (Bitcoin): anchored in block 960489 (2026-08-01T00:40:43Z), 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/DEAZ31019437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6286b18526d03362fca2d22a543bd1e0541f15d15e0ffdb73c2dc252bad428f3. 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/DEAZ31006169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08f218548effe8d2b4b8f733d6fb8e24bc19b06f5597fa6f14bf93c7cfd9df20. 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/DEAZ30609138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1a102236fa4eaf2ed8273ca1b1ec80f2b29218705f703fe921a22a3e0842e32. 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/DEAZ31102556.
Think Global - Terry Lee Brown Junior Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2683ce0963e5de32799e4b8df1c3bc380d88458cb169daf7dc7bdad172d2f7fe. 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/DEAZ31210570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7911f1defa8489094911b7f989f7f95ef003392b6a0a9f4c5639e3b304d69826. 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/DEH741712991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdebe4a3bc870f26b1f1ccc2c31323f9d10073d5d59b07ab3322be8f19f5cd5c. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/FR3KP2003000.
Nu Deep Rhythms,Vol.2 (Selection of Nu Deep House)
Athens Session - Compiled And Mixed By Nikola Gala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37aed0e00dfa7a8cac2183d7a316af1e30df7fa04fe0a17ff6ea70101a435ea9. 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/DEAZ31010188.
Deep Solution (A Journey into Deephouse Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02ef81116953f8f76346894784e8c6797285a3cbd36723f2b076c96b3d22f0c. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/FR3KP2403400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0854066745fe61227156c209dffe0a9deaa45288421ae81e3969c220d648ded8. 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/FR3KP2403410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7acfe3f61145c393b43ea427049923bf659872033f389f92b62b9319ae5bb990. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/FR3KP2403430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80350c29ec70e6c21fa56e9233679613474011b0017f78bcfd49e5d68a61c153. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FR3KP2403440.