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 0xa47ad7387f8faecd156bb20eff68218cf132d9a5fa08982b2c9f8fc0ee8e0a99. 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/a3c83420-607a-4c03-a748-032d5ba4436f.json and https://artists.proofprofile.net/proofs/artist/a3c83420-607a-4c03-a748-032d5ba4436f.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 0xf9507e927bdb3581f99a1152c3e14c3276b3d649b0de53f37700d3fe89160474. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/QZES72543301.
WHEN THE MOON COMES OUT YOU'RE NOT THE SAME
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ec9ed92bb57c1676aa24d4d0d6ef249ddfc353d34f5e86bf1fa04c31539d93. 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/QZZ772441105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffdf60a4f1dad058624504d0ee929e4b0d1530542178402a6eb342f537b2905. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZES72543300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa623f74237b93a4cd0d25e3be5c74f2012ab56edfe3743fd6746c2c6cb5b53a2. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/QZES72543302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b9f0735a6efbde59b8c86ef280586804af094a253811656e9651926b20a2c93. 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/QZZ7P2480967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb585bd78541598161af9b303c17ede487f2a6e65471f2c3b41aeb9a82c3600ed. 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/QZZ772441093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x797ad6ecba6b5ae063100346de40c66d792354ad6bae9893a79cb392c6b23a42. 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/QZNWR2572967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc789ec99367b81ae5536786e53c20760e37ce18d75442aacd933b85fc0016064. 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/QZES72543298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf588f6550024e6f456155e56f00b58aab8c86f0751b5a1e02d6cfac4cb3c23de. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZZ772441101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c3365a42d303b37467bd73780c9bab3974a17e797758604d7a79fd37145f893. 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/QZZ772441095.
I WISH I WAS DEAD SO I COULD HAUNT YOU INSTEAD
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389cb8711f4864656d66e02458a71cc1404bfb15e7a84e2074be11e9007bea21. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZZ772441102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x729270f8e20463506ffa8d6404b0cd408d8381852a8fb343f7098aeba9e6feb8. 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/QZZ772441096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0200edf43f7688b1af28c3e3edd8750eb287512c6d171e265c94e92308053113. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/QZFYZ2500918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e994bf1073262760f1c9ec1948f38d262eaa98c9a07db81a526ee6d353df675. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZZ772441094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d4414c25b793a273166754274849954acd631d1e8a4b5829905cd759890a1e4. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/QZZ772441103.