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 0x39c05706806c5062d55fc025e9a218cfcd45150876fba4c362278974ae657895. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48d6d8cb-ce50-47fa-af23-6e6a3f700ef7.json and https://artists.proofprofile.net/proofs/artist/48d6d8cb-ce50-47fa-af23-6e6a3f700ef7.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 0xbdbbce280780b33a6e9428429622d9550f6105edc0bf291c82bcdd9060dac9b4. 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/US83Z2347650.
Morning Sky (Daniel Neuland & Vom Feisten Remix)
Morning Sky - Daniel Neuland & Vom Feisten Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaea7be995fc90f7da2642577309e45d496c370421f7fb9dd047c3efcce0dfb9. 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/DEUE22381890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c313b929c171fade01ea49e427975ef6060f3587901b72b2bcefbab933f2c4a. 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/GBRKQ2336747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a364f89988dd0fe19f0da96d47af8c8c266d173faf14d0f1630659c5446feba. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBRKQ2336746.
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
Just a Little (Daniel Neuland & Vom Feisten Remix)
Just a Little - Daniel Neuland & Vom Feisten Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598ea1d0634c31c28b505b4f8b956a29f353481c382d5014346e38cdfa017efb. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/US83Z2140597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb030541f23904c4b69bc7fc79df16c280d9f9653e259e9cacfa18ab16253d534. 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/US83Z2235298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647b45eae2d308598d99e11aed8453fabed3f863b1b26e11b13e59eddb9112d9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/US83Z2235300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x578351aa9e66d1544bdd8d9565d9cd95499b236b666c822f46259b55e5f180df. 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/GBKQU2103553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ae6f047e0d564cb363c6990fa00d46e55aa5d6c77386e0a32abb4e326d5405. 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/DEHM81800275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4fa7b718620744bcd14422a910ce23afd99f92bfbdc865bbfb56e68dd4b7443. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/DEHM81800272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4514eba8d01ab5fc1e527a2e88e45657326ef5fbe80206b92a43c4db85045d3f. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/DEHM81800273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02914ae516f9df787605bf6851538e57793346e8f19f550b085d212511962f57. 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/DEHM81600427.
Toilet Tales - Ale Castro, Rhythm & Substance Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcda327e96588e275f6d297db5e173a9a60d0b848e8a858e3be5d16fbd1e6ace2. 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/DEHM81600922.
Toilet Tales - Daniel Jaeger & Joseph Disco Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ba163d209f9145a08173b43ab637b050af91aba07fa5b37d8163c4916476d0c. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/DEHM81600923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813602fc36a117d59698bf37cd65fe653fe380a69f5a8c82a389ae7e770a2a46. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEHM81600928.