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 0xae0f43b330144c5cd5b8fd1cd036885b22ee1e52912b08e9ffa0c56ef48d6d28. 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/ec23712e-546f-4459-94cc-789f46e871bf.json and https://artists.proofprofile.net/proofs/artist/ec23712e-546f-4459-94cc-789f46e871bf.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 0xab6b8dce5287faf302af17bd558f34be6ca951a17988cbc07f228fe4f36db80a. 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/QZMEV2287568.
Will The World Keep Spinning Without You
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8ae545ec780bb41f51cadb44d6fe607d2d11487dc5d5912b9abbe849c4e8a8. 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/QZNMU2281859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97dc06abdbd79bd5ea3c26d797cb75ee63a1ebb748ada837c3383452bec61dcf. 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/QZMEV2398873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a9073c38e8cb66ddb69f6a3893181a8a6d7c6d4c87406efcb744c5f84852b4e. Chain 2 (Bitcoin): anchored in block 958785 (2026-07-20T00:27:31Z), 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/QZNMT2314333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe180b2ceb3ee98f6f58a7d908e9d7c111a3b9b07efcb4a28206aa8d437f3dc8b. 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/QZNMU2331982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63f17f30e93d512874bbb8e89150fb250e834e35c93cc185501204934544d24. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/QZNMV2352749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x562a4dd2342711c52a2e20ad3d8abb684d7479e5a071245fa38a4fa5a2ae814a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:47:33Z), 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/QZNMV2386540.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x233867190ec82bdecf2e082e0e276aa4c1a0169a79a74f22c434e8edd12d4403. 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/QZNMZ2327786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c283c136f1bb5096446fe2e18ee9ade275ef3bec7da84a352f51ee64ce156da. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZNMW2423743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7d82e2bc665e74c37372b9551e94dbc07454da1210c57236f39b97d7382e137. 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/QZNMW2423744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13d4a340f6591e905e2d831c9fcaf1bddf9555f2d9b218c7fb9fa584249a66ce. Chain 2 (Bitcoin): anchored in block 957632 (2026-07-12T00:10:15Z), 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/QZNMW2423745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d2635ddd675bb4d62189d24261e45055e90d774f5af3fdd88c2383960b56eaf. 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/QZNMW2423746.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2e384f20ba74d823974f882cb4547c8b1414e6c925730c297cbb7a4e0f6caa9. 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/QZNMW2423747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c240b86dcc30790d9e56d616a008cc25270c9b7fba2b258b91a7f4b570d01a9. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/QZNMW2423748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4abb0be1bb7bfb826711c8df515f8120b42cad585d319eb5460d92c33e6125. 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/QZNMW2423749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8974d7b80c979ff57f6fb3eb2b5cc6a3e89118e139eb1c0fd36d31ecc50148f. 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/QZNMX2489012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a15cbfbd2b6a05203ff0a1b552d79e84fc92643b9f8caca1516f7f6072a6f33. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-17T03:01:14Z), 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/QZNMY2487718.