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 0x5fe94eb54e874f461250d335195f535c7fda214bc825e89e9f84775b3f6ff90e. 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/106c2870-99f3-42e2-8614-d4e7933f388e.json and https://artists.proofprofile.net/proofs/artist/106c2870-99f3-42e2-8614-d4e7933f388e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fe-Fi-Fo-Fum (feat. Nolan Porter) - Single
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 0x16b0a5f98b042d357f2fa7fe3120de341f51109c9113cb1fad5c350f4151e05c. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GB2YG1700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea51eb5326f15ddfa6019885c2f736d3eaa1e1acdc9d51de8aeb04a8f0774cf. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/GB2YG1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c90e7174b326ed7eb6fcf1f944818adc95bc5334e2d624e96ef78b7020fe20. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/GB2YG1700006.
Simplify The Situation (Leo Zero Remixes)
Simplify the Situation (Leo Zero Remixes)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010c793d4ee08c0349fa67a8a4955b3d07e74c4e48f89cb17ea7f2716c76294c. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/GB2YG1700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010c793d4ee08c0349fa67a8a4955b3d07e74c4e48f89cb17ea7f2716c76294c. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), 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/GB2YG1700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3972b2eea6aadaffa7168dac82f18050b869768a562cbbe5b21a7781f0e035cf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GB2YG1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3972b2eea6aadaffa7168dac82f18050b869768a562cbbe5b21a7781f0e035cf. 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/GB2YG1900002.
Ordinary Joe / I'm Gonna Tear Your Playhouse Down
The Light in Us (Boogie Back Soul Weekender Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc93d31607341650f59fb5bc30368bf08e28d56a87f83ce18a48e4be3969348. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB2YG2200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebc93d31607341650f59fb5bc30368bf08e28d56a87f83ce18a48e4be3969348. 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/GB2YG2200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42fcbaeb9990fd8603bbf2e0b580ea1657f768f81e79ea7876a7a9034d3cbec2. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GB2YG2100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b24344ac03de36e08c6acc5786ac6921652cf3de6937298d0c4763dec8968e8. 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/GB2YG2200030.
Standing In The Light - 25 Years of Stone Foundation
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a64a3457f2ebc80450b6f71d24f6fccd0cc466608044824596becc98a1bb6fe. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB2YG2400051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x769ddba0f3397bf218ae1b996281246d7ceafcd20912de2663ad533b96c4f02a. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:38:05Z), 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/GB2YG2400055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x706495aacce635b05d822e287d58fc934272715b99d517e91a835ef6fc54730f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB2YG2400052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82113f0a22bded32ceae798047ecca87bb2125d4d3975f3abe1623e634834db3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GB2YG2400049.
The Revival Of Survival (Bonus Material)