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 0xf711c04496b759b46bd3ce6e7eee23b45d95a2edc3b98c74c3005a269da9ccd6. 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/bb26343a-4e4c-4e8f-84d6-eca8fbde478d.json and https://artists.proofprofile.net/proofs/artist/bb26343a-4e4c-4e8f-84d6-eca8fbde478d.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 0x53d1c551fadfe022dc4f136ce8e1ab7b4b28c7b1d83f8abf45f52ce3b7459585. 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/QZNJY2158558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac1fadb66af6a9c2687eddb840f994fc75378a143aff881a693fad6fc794ee44. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZNJY2158694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda1aa0827b4875556754a81834b32f79f3ed624c00a917a0913bac3761fd3901. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:13:44Z), 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/QZTVM2235336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd608be21d1079f3fc1a37dae4ac8ff1e856e2f3063ddf4167de9433bd09bd03. 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/US7VG2259772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8027e7a19b2383f7e47fc6771b4c3d561a5c88f13112b953328c6f700e2754e5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:51:14Z), 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/US7VG2259776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edaf8f8972b79203acbb317e48f6fa2689e773ae355633a6525090f40479b0c. 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/QZDA62440775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71c3283d731b3d0217ad069dac813b4ed1ffe4bc2b7ff2e3e38d7b725606e4a. 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/QZDA62440779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb674d5d461e555b58944d6e596983788f3930326de10781d197ff520245ca17. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZDA62440776.
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 0x797a4d7a6ef46de4821ae80c79652d2e3c1de77681bcff580c838adf1ec2f7f0. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZDA62440777.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaffa94c4730d946f87cd9b14eedc142c0521994f68e3ea6616669fc4e930942d. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/QZDA62440780.
Dontae's Inferno (Devil's Advocate Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38ef2b4568ddd077fc708efe1fe97242cbb8dd2b6b8945432337e2b021460b1. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/US7VG2598686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4547bb3682d2c5885bb1541427991bc93f9a1b3c04da2332c90f49d08777265d. 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/US7VG2598691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19440ef4b7aa38c68986e22ecd3d5949e17f34a2cb8fe2e7a90ecd240290cac1. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/US7VG2598693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34fc7607e6429bd90318187359f357faf5285f01cacef16cd7b6cc7e800315b3. Chain 2 (Bitcoin): anchored in block 957767 (2026-07-12T22:25:13Z), 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/US7VG2598692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca139c381eec00ec6f63f2062cb7d0a61f9f0df2d8d4ed45d9767b1baad227f6. 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/US7VG2598695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a0ee97d48502072f35e15e6b7446b09b669285b59cf2c230b8dc583420fc82e. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:55:31Z), 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/QZGLS2588959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca35db7091d4bbb77560234d1be6d855fcf72ed4602449dbf0f51c6899d23821. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZMZ92525929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45d4541aaa1548855cfbd43d5e8bb2d9ab413b5683b83077c5c3107783df7cee. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/QZNJY2513619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9324353a41c43db70949b2949e73f138e4a77f7ef46148b673db9c02b9340787. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZHZ32295324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56b1621433f4d91180e14322394994f7b8f5d1cfee5920275deb18f2ccc8f5d. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZV5E2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c95718886f2c1de2df03a2d44104b591240a0f31c9a5a41a589a9a4cee074e0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DELJ81622180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56e9b9e839172cdc5f7c33d44be4bbc167370d366dbaed625d0aa014fd9b7816. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DELJ81622189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a9112d06407becb6eb86cc0334175c7692bf8f97b83b58301a727d7fb93a75. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USHM22147797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3937aa128a25ba5e0e749711461cd4cafffd975b2612a050a29ff349a2208817. 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/QZ5AB2058155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62cfe5646821f3cbfcc27a9404b7cba0f8d54e66d2cde7e9148a95b3a99d1c62. 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/USTB11500299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67e30d2d25691499f64c22803d1b8a045b8db5edfd7147c419fc371b65a7b9cd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZFYZ2218771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3efdb418fd320da896721440d0f805b437e37412c689f5458030fb4c2b47a5. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZMHL2340663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ba9d891f65de413b9a37b3fd765804cd99ef745f72628dfdc0abaf7c749cb7b. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/DELJ81913842.