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 0xc19f696bd173e939382a23549dc6556a1b4191d4dec31e63d1a4c5e09ad50056. 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/466ac0ac-5d66-40e9-a370-3a291613d866.json and https://artists.proofprofile.net/proofs/artist/466ac0ac-5d66-40e9-a370-3a291613d866.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 0xdf87615a52e2c7278cbcc857e761311aa9ca4ead411b323a4c53dae43e9d8a7e. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:30:06Z), 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/USAVX1100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9920f0a9a3987426e3a437c643e5fcebcb61cd22c00ebe5c363f2b0a74b0bcf. 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/USAVX1100002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe450b5c9b0ad037b074930f8831be06be31008ef9f6c2266b7d77f9fc6189d54. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/USAVX1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe450b5c9b0ad037b074930f8831be06be31008ef9f6c2266b7d77f9fc6189d54. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/USAVX1100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3a192ef571ff98ad090c9a9f2838dd5ecb2085d431f858fa859557632f1369. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T16:28:04Z), 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/USAVX1100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x588ddc04e3333cb456c5ca9f439b2a551b3bf2b6648a7668d61d496f362e3d0b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/USAVX1100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f855c535458229387d8604c8d1d5c049a4df0df36512f5fa6061b75263509ef. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:48:43Z), 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/USAVX1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f855c535458229387d8604c8d1d5c049a4df0df36512f5fa6061b75263509ef. Chain 2 (Bitcoin): anchored in block 958399 (2026-07-17T10:39:51Z), 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/USAVX1200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63aee609e1c3330c97da888c02959572fe405dfe927d314e93252d3d4fc0cd1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/USAVX1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x353ff0e397cef27b62a36cd7e7405e8204adaf6090d5d9fdbac0b52c4371a00a. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/TCABR1354076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ab4c16115e0db9ac3cba25cc9cb5325616a59e93092ec5c681913463602865b. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/USE830938951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14e7492aabc36fcb8b0671fa93026e21cbf49aa632be3404f0d53bd6011c62b6. Chain 2 (Bitcoin): anchored in block 958696 (2026-07-19T07:45:31Z), 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/USE830950658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9057c30e936455daf9b29a4b6ba72ab70ef53d91b4785d82e3e3c5a438fb5dfc. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/USE830958070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65cd2d1c48238d007fc6dee137b75268d94919040cb23fbe5a27f4bad2490ccc. 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/TCACT1655439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd362df7ddbc63ed620080763bbcd0b9d6893664d59de560ed9b0aedfe8c90813. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:38:50Z), 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/TCADO1868521.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaae7739058f331be4a3826ab9ee947e1fb593587d2c5f46d10484bbd7862c64f. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/TCADP1872579.
You're Just Sleeping (Chris Outlaw & CharlieWonder Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fdf81bd50a28a3f94c3bc37ac649b2dee9136fda3bb067ad02c4cef693e4fee. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T05:24:36Z), 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/TCAIW2493065.
Killian & the Comeback Kids (Music from the Motion Picture)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ff19c49c49480ab99b77d85e8bbe9d85d185b93628d31430b62d56239cc566. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USY282300054.