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 0x8c0019e9ef726ba57daefe5b1392223af888dad2b63c9bc9910283829abaa6ef. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/50766113-bbf8-4990-ad11-b7f425cbabfe.json and https://artists.proofprofile.net/proofs/artist/50766113-bbf8-4990-ad11-b7f425cbabfe.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 0x1c299b88ca3ce161b4e0afdd7a0d94733e92d0933b3c6ef5d7a715db0cdea88b. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GB8KE2159041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca4e51e50c9323635b97c9df3ed91a4474502311ed42ba001b8177ef10f86550. 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/GB8KE2159042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af826418e0965343bdff09be6b9aa8f4e81c725d9b6296c04db1555aacb4916. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GB8KE2159043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef9e275b4b0251eb5c5871d5f170bd04fbecaa37ec0b2da18a309f0320aa0240. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DGA072200223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb50f7cc9eac4e508018b2254765cdbcdcc6bb3dea6da74c6d8eab6a3644be025. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DGA072200224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d20bd5cdb274d79ca0add297a4a975d62c200921611966ea20ab668d53504f. 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/DGA072200225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabad71dbe1f4cca00ad6ab38288a4ccd1af2fa0cf3aead40b5c43ee8d7959dd8. 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/DGA072200226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd07e838dbc2a3dac0710c83df67bdc10f5d56be07cd49c395d27fc2585df189. 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/GB8KE2214554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65750732e10f399aa18721881ecc65f324fd938aa2fed3b75b20a19a7a6188c. 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/GB8KE2214568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52b8db7f9cff8475a9c1c3571eeb398a84620bd0537d6c162156576bbdfb919a. 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/GB8KE2214575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0878881a85fc921e8b997b20aaad0fff0ba4ddba775a513f048acce9c463eb1b. 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/USHM82401158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9e077c8054cc3279e2bb37a5224101f9c5911ee85baea7808a9ac63097d936b. 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/USHM82401159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96df5882a657533a508d16aee425db88bbe5d5fc25b86090f76c546cb1fa413a. 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/USHM82401160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5c9e0de1bc463ce56872ca5dfffad53c165f9901b6e508b8be7e5f6046ed6d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/USHM82401161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6057f8ae6e475950aae3810ccfa272cec8971e0ffc2fa68a3c5147f9aeb6d76. 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/USHM82401162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70eee880e34e537ee46e3e3247f40a01a900cf0e2ae1d018cbd8d270dda748ca. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/USHM82401165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1438ad86ca1166ae2aa773f3066ae8addd09c48fe847a7bae917999de4b06ab1. Chain 2 (Bitcoin): anchored in block 960456 (2026-07-31T19:53:57Z), 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/USHM82401170.
Nothing But... Dubstep Essentials, Vol. 12
Nothing But... Dubstep Essentials, Vol. 13