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 0xad59765724a3bd05397138d8402692c4b3029607598c533681c6fe353f8970df. 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/a0b44f20-1413-4ee1-96f3-22f094912e63.json and https://artists.proofprofile.net/proofs/artist/a0b44f20-1413-4ee1-96f3-22f094912e63.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 0x8bb23beea0d7931293b31aeb5c7e297b3feaa1880e1d60e8ef62298d5516d338. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:29:23Z), 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/QM6N21446113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c42c2f95dff8c27456a4a5fdcfff2a97459b6f863a341fabd435413c1b51759. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QM6N21446114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a2b5f11c1894bcd0f9bc16656342998032febcd9b5e63323e518936ba90dab. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:33:33Z), 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/QM6N21446115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7071a59c669b5b40404fb702f811bbbafde6d14ad4c14e6b62cfdb042aed0f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), 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/QM6N21446116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd78c0e1f2c507c0cfb3ffc0c199903cbc89a1829d1e9d83b458b347f242f2519. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QM6N21446117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeccbfe80ba430843fdb59e005c70fd3900dbedc3849e5d56fff5e1d13550be2e. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:33:41Z), 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/QM6N21446119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc43b0382ccf881cf66628afdfc2bfc0e2d558bd8e3565d668de8e74c5a2c8f. 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/QM6N21446121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x455b4ae75641580cc42d5fa681189d4beee1dd2d8198df8df0ac15940b089ac4. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QM6N21446122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6c6d8dbf73191f00d673507c677d07b67dacc74e66204a8f811bcfb9e38c4b6. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QM6P41485918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefd3e8c47bdb254d3683ac973ed1c4589f8cfa5118a20635d5dfc3be5b546086. 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/QM6P41485921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6efb7677bce1d9565549cea2b6e558db8f8de345501cf6cce6405ff8f9f7a5f. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:43:40Z), 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/QM6P41485922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674313653e0c168c797d0353e8c59586c3e59dda932d0e5940897f3676f666b7. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/QM6P41485923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff7c43e8f9b59a58d013b3b93af7494699068ade0903170d95b6e4c4147739cb. 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/QM6P41485924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebfa81a8ff9d789931c02ff3527d408de2f1992eb797a5ba92b72b85fa424763. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:00:12Z), 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/QM6P41485927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95dc15eebff25bbd498d67dc812f0ca3baa515458bdeae883c3884a98de112bb. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM6P41485929.
Ndiyanela Nguwe Baba (I am satisfied with you God)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3338a549fa4ebddb42cdf10f83bfdf0247d34e8ef314d1c1e2ab73a3ff2b62a6. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/QM4TX1824034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9037740754716586c7f302b27cee7d8231c48b7b0154acae9b6f548c443d48d. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QM4TX1824035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8121e681bdfb0bc6c407e502b804407681097ca5804d73f4728e49700cfbdf. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QM4TX1824036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef45c33131cfd8d5b74abceb4fffcc102dde6077a30c0b68cf45cef87d4be0b8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QM4TX1824037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48f6ed348eff958db131c1eeb8241696682f046c73b17c456191b3a8f385990f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QM4TX1824039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b885fa3052fe9e74861a2dc533eba7507940357c7720edc2dcae28f01de685. 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/QM4TX1824040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c4db1194fc50d00489e27cf5831a9e330d98f81f4f1e1a2ee60ff86bd5481a. 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/QM4TX1824042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb18be9bfd0c38785bce80f9f915c2beaabbf3d76d4d16bfe6324fadf5419e4. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:30:02Z), 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/QMDA71863321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2ca61d0450431c8fdb584021d3c55dd4c4251666d6c4fe483c7b3b256ac7133. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/QM6MZ1877423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ece7933a32521c44f0ea8f3028c1226485c4fbebd809a23557b939f50f1993. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USDHM2011905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf03c104423732d268b1595af50b4ae2746c73b0e46deef70b0f95cf1f3ac8c8. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USDHM2011908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5408f7d437bcacad8a4044cad82cdd45073f9e31eea0c5a07ec4b8ec12626c88. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USDHM2011909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x539b275780a51e26159099873972a6499d43d43fe332f9ead27644ffd2e70409. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:54:04Z), 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/USDHM2011910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe26d133120d12e9ebf13a04f176def74edbeb89b65e9f4aae159ec1fd1a9f5f0. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/USDHM2011911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87067105a8bc38559c269b57092bf4028ce6382253c60185d2a518f3b6a20776. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USDHM2011912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x004b57a775cf984a8e562f6cd7d584bd69f6ab1592584b352fe654c2bd90dea4. Chain 2 (Bitcoin): anchored in block 959096 (2026-07-22T06:37:46Z), 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/USDHM2105358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x200ba8739aa7fcf489e812d69eb0ae6c1db424c7045453893e4f9728f8e82c45. 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/TCAIX2454714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f80b426ff951832632971fab23482abf8e5c3adc14d24103ce7559b77e0376. 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/TCAIX2454724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e66d229a7bde52a52a3d13eddba057c4a0ffba6d568d2e0ba13017d2c92f68a. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TCAIX2454733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb17b68b081ddd132c648c26a0b814c23f31b88dead0dad497235a0f5a07b5a7d. 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/TCAIX2454744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0e101d60a8a8ac1bebd3707dcd75490b102578636a2a712dbd940902ada3794. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/TCAIX2454758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6b50ebcc663129ab2f2eca11ab3959037bac690d7c6ea1cab72dbd5c046dca5. 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/TCAIX2454769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b59f4ed58bf6dcad6a3105d31b14e6c052f288109a12261c8c7a638f02899a6. 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/TCAIX2454777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa517c912ec34f2d4fafbd25c3cec106722c95c6016e1463dddeb0b15186a4643. Chain 2 (Bitcoin): anchored in block 958697 (2026-07-19T07:58:24Z), 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/TCAIX2454784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3e38becf821fba6ab14f8e32eb42ecdb70766844ec8301004b6bd736da53c2. 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/TCAJL2546122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63f50d4abe506045cce064eda953bbc0c507dfc4a836b3fc0f81910f78dd75fb. 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/TCAJN2551555.