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 0x59800cba1e600f4cd6568a093b79ec4f676be54308453f335b62a9e30ec06f25. 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/3f4f8a9c-b059-430d-97b0-8ac2618ea43d.json and https://artists.proofprofile.net/proofs/artist/3f4f8a9c-b059-430d-97b0-8ac2618ea43d.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 0xf01057ca5afa85c0ca9741fbc0d06eb5c67cefea610a6d9c165a23f90179d106. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USTC00955249.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c5906bbec98b71b129d587095f33df46236a80e44318eadc56b115ae717f7d9. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USTC00955252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de715237ca814f89ffa76c600120ed919dd8948238c0edab2e8f88c0c6293f9. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/USTC00955255.
The Best of J.W. Colllections Baron Edition Vol 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe20c0b174f891ad2c1fe0077d3c7213cb0f4417fc3c20dafcb875d31c634122d. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/USTC00917681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3460dfa1f947fcdadbfcadfa56f84b2f2d749d95347494ffd2e2769145ee94a. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/USTC00917684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8013bca47ebfaedaae1cc89c72b9ab09aac613d1519196996f3a959d2e8bf644. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USTC00917688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2085b14f0bc2c187ded21f91e6f2c512a2599a74c2a4bbfd12dc769d62f57c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USTC90945206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9775998fc7409cb8e65b40a42501e3a6eedcfeb6c548947ded401baa4958387. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USTC90945209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d375aa7d930163341fde4e323136a77f3c9dbe8ede86f04a74306f87109388. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USTC90945213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6317b92b0e5f449156008ed9a06b32c8fd0db7238ab4fa4531a898c8b9250bf0. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/USTC90945214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x969040657bb80fbfb3e62fbe6d2f1ba491c7931f4e7fe7f8231e939bfbaa9a23. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USTC90945217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bbd80a735ef9a06123f3641ec5eef95e73fc8d93acc4f69119203102bcc855. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USTC90952232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94aadba409b61d60f9b2eec9f97dda3cd9d1670c21fe339e7963d1b33d856605. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/USTC90952236.
The Best of J.W. Colllections Baron Edition Vol 3
The Best of J.W. Colllections Baron Edition Vol 2
Flip Skateboard's Extremely Sorry Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb076cf9bb424f1aa7e1d010c62024dc34b4cea7c82bd36862b19a5bc4c6ac3. 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/USTC90958081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2e32febd18d609ed351c331c9ba4197702efe04ed3fd31d18cb77ece031cd9. 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/USTC00955274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fab1158e0124ca877030a4440570dc3940414da626bcea0feff424bf19e57e. 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/USTC00955275.