Clean Slate may refer to: Clean Slate (1994 film) Clean Slate (TV series) "Clean Slate" (Kim Possible), television episode Clean Slate Program, Stanford University research program Coup de Torchon (C
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 0x933de417de8ead93aa42f6edb0182fa95265b7d27a2d5cbf4fb73502950f4e71. 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/bead095f-c7d8-4252-b2b1-ff98963e30ac.json and https://artists.proofprofile.net/proofs/artist/bead095f-c7d8-4252-b2b1-ff98963e30ac.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 0xded2f2bb08b3226ff3a55bbb4814efe8e8f2685296d97789f6daa52851691985. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/USL4R2116413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd910534b35fa2f4eb97f8d069e1f477cb9721c80f2be8329d8b69f9fb4153814. 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/USCGH2376882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2799e76414660858cb2fa4c56559cf209c9d9ac177ae58e8f90225dfd7ba3d64. 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/QZMEN2379745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2a362e39ec0f39c17ffcaca46253d6c4a8ed65363eca5babbc929671de0935. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QZK6L2329763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4445bdb70dae2f64ce9129adadc2a3b152bd59ce78d3e91b2d4b507590a6ea. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/QZPLS2229208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5f837b4f4bc78581f8112de6a1588efeb2431288503d00384ada2df38b7170. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/QZMEN2379749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96228b5bc96a6c77d6249f4d2a99bc259bd44b11559ad870b699f99edb0e5dee. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZRP42389600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6598685d118e311d02f5c727b7372b07429b7b84748d9382ff0a14dbfaf80c8. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/QZDA72435264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x954966fd9057757495ac5c6e9179f2c0367834e3da860785afc19b3715dec3a0. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/QZFZ42458678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24b0c1e4bdf4c866af50e5969dad3e63757d018e1d04ff2a5c0938e5458d5476. 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/QZHN92461656.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939fbc6210c4986a94d8398dd2597c1858a0cfca6f673b106295f7fea0e98132. 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/QZWFU2422436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29a0f69394a51e988f871a4eaa4736e7f429026899200ab833d813e5db14a3c2. 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/QZZ7X2555677.