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 0xec3dde9ef97e1cf472f905e39a3aa6009749de0cdf4c84f4b432389a3f9a4188. Chain 2 (Bitcoin): anchored in block 953864 (2026-06-16T00:30:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/04762a76-c1e1-4644-b107-96d94385d826.json and https://artists.proofprofile.net/proofs/artist/04762a76-c1e1-4644-b107-96d94385d826.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Henry Stone's Miami Sound - The Record Man's Finest 45s
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 0xba21a4101304344fb7279e6ff56658377b644f6ed1876667f6368d65d0787a2f. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/GBRH31200089.
The Silence That You Keep - First Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352351fd0dac3559c419db8452c6db469f63a691a17596677d7e24c3eb26fea0. 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/GBRH31200037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeea6a256fb328e6bf29b13b13258725c49b394a33923cf497402d6a682e2daa7. 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/GBRH31200093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743eb954aa8fb45d3af82fd0affe9654533cd8687d9934d1dd19b2371ea049b5. 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/GBRH31200094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89e2d788716dcd2e09afbbf7616be1b5302ad5cbc89ed5447e3f1e5f6ace2426. 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/GBRH31200095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bbb9219e7b6ec5a35599ed0f9cc0f62fab4383e921afa9c97dfa4ddfa12981a. 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/GBRH31200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8fcb11273bd85e5955a602fca368c9f34185fb2cdaf16a83f8fcffff6264884. 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/GBRH31200098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae73fe284df61fc22e8ebbd74b24e9ffb1d381f98839eba608d9924d195fd1a7. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:17:24Z), 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/GBRH31200100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f7097a94cc0c0705516e5631e24e970e3fbf146250c6d2aea0317c590c4140. 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/GBRH31200101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38e2d7f93a460e434fa5b5e11518fd3fe3693269799f95b0a6aa734ac412f57. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/GBRH31200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3067f86ad589d1f4205a2c6cdbaa1e1b725b01ea3af61a258351dd7b7854296. Chain 2 (Bitcoin): anchored in block 959103 (2026-07-22T08:27:52Z), 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/GBRH31200103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8b3f38181e88d2f3125861f5d284e98488fc36b0945f4aa832b02b2d3bd6a3f. 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/GBRH31200104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59568ac5fa43e2131b26bf36e46a7a852076fa3477f5bb9895502d028ae973d7. 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/GBRH31200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070419e6f589b4a90d2679861920ba943b157bdd8427666c5b3b8d82f3e9ac6c. 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/GBRH31200106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63968093bc20b618a5c249cf7da00dd62daa0549dd9ed2d12dc4afb1e48c6cca. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBRH31200108.
Miami Funk : Funk Gems from Henry Stone Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf78731c770adf71598b52ab580ec00ad59293fc27962b2541cfa04c0b96ae8. 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/USBEN1350301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaaec3869c0b5fa890483f4e8daae570cf77eee70aa821b7eb337d4def8b97f7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USA560509443.