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 0x41e44dd8adaec47b754fe10bd4192a38f88bfdbd3135ba971c97405e0f9bf817. 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/51c9477e-a9b7-465b-bd67-bb194ba1ff36.json and https://artists.proofprofile.net/proofs/artist/51c9477e-a9b7-465b-bd67-bb194ba1ff36.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Back To Fundamentals By Franck Roger & DJ Fudge: Backed Up - My Definition Of House
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 0xd63f2ed31b6e9d9e36d47c69a847980de4b31dd9686dddc68834e1e7d7c6ce87. 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/FR2PB0700470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf386ba8e67db1797a06ea8f85dc84d05565f39f997cc5844e6c157a5eec5fa5. 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/GBENT1331026.
Home Invasion Records "2 Years Anniversary"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c0f0f0256ba507a7fa96082edc01aeabd5d2ae05430ef5b6a670373b19a991. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/GBKQU1950185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f81c863fb4aaf1ab2b0cdd670ee2e2a6481eb2ccf33d49fb73edbe9ca13648. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/GBLV62000371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2007fe16815daccb1b3f960de9c8f17eb6284662c30802d1d5e6b8df9b3b0e. 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/GBKQU2341198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc9413933aa3e672e31f9415920cf0e5e6dcc1a54f38932771051a5b53e8a430. Chain 2 (Bitcoin): anchored in block 958695 (2026-07-19T07:37:00Z), 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/GBKQU2375347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x480993c548398580ed3cc1b42dc2bae85ec6489a64e4281dace00da80ecdfaeb. 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/GBLV62309213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77a67e328b2cdf508e811bde6195df161fe6d03031953e1264eb70920b06eb24. 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/GBCPZ2322884.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb2af788da391f5d9bee61b9985507f62674888bfd78c8ec335eb1f1525b420. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/GBCPZ2322887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x296b776cf5520fa68d38b9d211515996ad459a91c5836a23734461113edadeee. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/GBKQU2454605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6015508ee31cdfce76f2bebff26c589e6251a049b579cb15064f6a47e4ac34fe. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/GBLV62416782.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8bb6d6da5af366cb6882f7728067ab1cd8b2d28703ac76913864088ff04628. 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/GBLV62420068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64c6598643b5430e6e6146cc291b31eee40e9ade211526b0398bea0a71687dbb. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/US74A0500712.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895ec01ea2ca56eb4b619fcfd1647f04e834ce9261747b3721be7b261650b5f2. Chain 2 (Bitcoin): anchored in block 959051 (2026-07-21T19:48:03Z), 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/US74A0500713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7682afd0969edf469c782bebfc0d4f9b2685a8c65424b1f78d4f5b29bedb3bb. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/US74A0500714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x065fc15461656e3112db058091e26686d4fcc368bec8ce87b98dcc9310645a56. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/US74A0500715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02088c88856f87eb6284a633269ffb2a70685c700434e3483a57bee7ea3fce54. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US74A0500722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec7226d838734ab137ccd11043e0e100984b928ff52cd921d40c28ff50a71c5e. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GBKQU2522437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c4615e5a2f7592816efb7c12d0abfb3d2ee2abb74792811acb04b030be73651. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/US74A0500725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x275c35895ce6c44e238c028f979ed745f9a6a54d8899e9be416d34671ff7c2ea. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/US74A0500726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60068861d552eedac28b1c090e66106455183df368ab58992eb0931181e75e79. 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/US74A0500727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x472bace998d79e565e6f04b204a208e356cd62c7cafcfce4c9d7a56a514cfc5c. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/GBKQU2533637.
I Can't Wait - Franck's Atlantic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14c8a9ddf3437bbf158726165bd413926c7683d258f5fecc584e27fdf18eb6f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/US74A0500733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9d5602a025aa842d70ba09191696cab4f64526392c30a48a14a6c07e856b7f. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/GBKQU2552219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46cbe3bef3cb14b139495a51ec5fb5b89461d9f85eca5c6b1007ba3f6c5e2be6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/GBKQU2568642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf386ba8e67db1797a06ea8f85dc84d05565f39f997cc5844e6c157a5eec5fa5. 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/GBENT1331026.