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 0x7b2cf06ff99ebbb4634635b16e2ea15e4cbc9398a3b207549066e82a4f3d2c40. 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/0a40ca86-eb80-45a7-8750-600373c6c5c4.json and https://artists.proofprofile.net/proofs/artist/0a40ca86-eb80-45a7-8750-600373c6c5c4.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 0xb25fbec90438bde30d4fc980a7bf3618d8c6fabf69ffc1e652c967fcac4df57b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/GBDJX1300133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4b302e9b515bd4dc54612fa8704ac0f08437f86ec93cf595e5daa52d78bec0e. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBDJX1300135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3aa7b9f497f47a98c57ca959c545ea4f958c5f6679131e1a4ce87569291697fa. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBDJX1300137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07d125a88a372cff0d5bc0f443820cace16c84b875000f04712b8137fdd32d09. 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/GBDJX1300139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x128705c6cbcc2585390c4db550dd6bec642ef2cba3ddafe443dbb1791fbbf079. 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/GBDJX1300140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x425e76a99b08c3185f72fa81d6f9174f3ab653b43f32cc956e271c71645fbb53. 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/GBDJX1300142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41895c2dddb926e7aa1e490a48965cda8a18a5c1ae719d13d8915fb3f8b982b1. Chain 2 (Bitcoin): anchored in block 958817 (2026-07-20T06:51:27Z), 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/GBDJX1300143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3348b2667c8f438015c26d41668e0bed76a8cb225ad8604d179eb9a38b0eb2a4. 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/GBDJX1300144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bf705b293134f19a291d4f3fb0b4e90e26db7e5e6cde7b250babe224a6e9f8. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/GBDJX1300145.
You Saw It All - DJ Koze Mix - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94caa96c379e619f527ea64b20347cd865eed99cba41d81f8cb19683989c49e9. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBDJX1200030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8690263d26ccc74381ec59c4a2dfeb9c9a632719ba70a3d22f4c9b516a6c4c04. 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/GBDJX1000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde5c25c3a5894932cb566707153ccc2e8b206b1bcd364a4871f9b8719670778. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/GBDJX1000047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a2aee64fa7eef3e45df71a1dc0262260a497416f769c7048555fe72cfacf84. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/GBDJX1000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f4d2ee800fee0ef14c7a4a4f2753811d1473c35c30fa8127b1055aa24d39434. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBDJX1100056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2087ebfc7acbd82d3da61b98b88ab6dace76c292f63f53a3663f73601683419. 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/GBDJX1200042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2357cb0ad005a416bf2a127911ca1311dbc6e220e248f05d6d6af84445603c73. 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/GBDJX1200044.
People That Make The Music - Bonus Track
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a385296ca5ff640d8fbf3e36f2c1cec5b42cb82fd607472c805e482f20b3ee. 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/GBDJX1200076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd498bcb06b3581ab0763ee88ee20596d4b5d5b42f34236da1e65bd6f1912ae5c. 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/GBDJX1200067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2b1c7b5052ac5353a81efa1f149608f229f8ed13477d584395c5725fe4ed170. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/GBDJX1200075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b8548771d8de09b245e960c2e93cee661c189292195b92104b6a66d8c3f46ba. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/GBDJX1300127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5b43af01156ec984df264ffa664900c8dfd3b0582e3864efeaa6be9796a0d68. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/GBDJX1200096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7864d0427e4954e9832a91eb141f53bc33941133cdc6fff4222fcd345cf7833. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T19:28:13Z), 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/GBDJX1200102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1115c965120e818c86e19d3e99bb0fa606164fa007f8289767ccde1b9b44d40d. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/GBDJX1500102.
I Hadn't Known (I Only Heard) / So Now...
I Hadn't Known (I Only Heard) / so Now...
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61368f324833696560a7bd8edb79baa81b5d73b277cacc778359e27afe4ceb6a. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:11:44Z), 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/GBDJX2100151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0db1698abece84977afb5e52a36ca1981fbe0db980a6f4fff9f4da41a4de886. 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/GBDJX2100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6739bc76e32480e5a6a7a16889c5ca59f0355b36f05616ba1683a924f2366c9. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:14Z), 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/GBDJX2100160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9a81c6cb1eff1e038f21564ca72792918dd479089c810dd91716c26853f6363. 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/GBDJX2100412.
Suddenly (Phil Parnell's Pianissimo Play Through) - mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x499cead8020f1c956bf6d2a1ba51277c579d78d8590ef46fc585587c0b1d1a48. 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/DEG931591386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd56ee263468a9ec605f5bf9f4bd5da1a40d0f5856f0633318feb27d41666fdb. 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/UK7MC1500079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d099d2ed3b8ef5837994d88d60a296adcc902323f0e8da125f85f57a8b91d5. 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/GBDJX0000146.
Reincarnations, Pt. 2 - The Remix Chapter 2009 - 2014
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaa717905030be003b2d58f84583590389cb368b59bd459e1a2ddcd2abd112bb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEMM11400020.
Can't Take It (Herbert's Some Dumb Dub) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d2a92bcb8b6b6d1a4ed8da130907c8e49eda884a1389637aead2bf4d0593b8. Chain 2 (Bitcoin): anchored in block 960167 (2026-07-29T23:42:34Z), 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/USYBL1401425.
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
Barcelona - Paris (Select and Mixed by David De Barce)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a78eecb31e69e3f9bad11a4b17a9559c489e6118d432f6f26746bc627b9070a. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/ES6100220910.