Keys Open Doors may refer to: "Keys Open Doors", an episode of American TV series You're the Worst "Keys Open Doors", a song by Clipse from their album Hell Hath No Fury
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 0xccd48386b901e6104194aa4fb6e81c630550329709d042fdf57ef525e217d497. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5c6daa79-b93f-4d9c-812d-ffa0b8bde2ff.json and https://artists.proofprofile.net/proofs/artist/5c6daa79-b93f-4d9c-812d-ffa0b8bde2ff.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 0x70c57ebb0111b0508c2db3d2b41d1f901ed33a93554197f2938ac68513c5d9c6. 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/QZWFG2301797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbcd2793e7287244a3f21e758c3a07d89bf166c7a55a73975de088a37cb3c11e. 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/QZWFG2301801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fda60a2adf7366e194278fb67cd95d6218fadef1da42544aa272e4a585bfe16. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZWFG2301804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc21d926c464ed7fdafea221f4c2438371fe63ffe0d6433773cb961bd0e4e869a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QZWFG2301809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fc5399b167367edb5e96826d043c62a53831ba5f08387b8e9891107340a4a93. 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/QZWFG2301812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16924d1eee2d33bb2ee1fbcab3cfa1e01f889da51a5d79d0cab034819e9888b1. 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/QZWFG2301813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ffea526f20850424f2ce76e836ed2bc14e2c5a07e772cc3bef9a8a58845c73c. 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/QZWFG2301819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd354b22916a569878b437ef9f506c50f7e50b65cb0a7afda7e62aa2023f808d6. 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/QZWFG2301821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a706ccc4e1d1d93271d99cf6a5f3e4e189b74dcbd6d8cf1538b5252a26a6232. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZDA42191296.
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 0x1e6e7ba1f49b1d72f96f180c7c6c0e74bf9dd2958e3afa4e4bcd1e9dc4a065df. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/QZWFG2301798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3034c7502cf323a0dc288e8fa9f9ec0e4d3e95b64971dd2eade30ea28b770977. 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/QZWFG2301799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeacb9df7590526d3f35da08ba185b1df97d1e5d12f6d2828d32d7ed8b2914afc. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/QZWFG2301800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x925efe26a7fe20d7656047852103400420655508af03ab3722a594398e4df286. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/QZWFG2301802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039c1222ab0cccf3e6ac37c9d0c331357decb6546a956ad0f28ed22944be48cd. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/QZWFG2301803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18d1ecf999e0816dae2c7b6caace35641bb6fe1e2941697937167475d430a586. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZWFG2301805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd672c629e6e9e76927729896a04042cade1c82fd411a5eca90eb3fc456a1a70. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/QZWFG2301806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d21e0450b42362723d2eb63bd1ec05ba79acf9a8d7b2db8ab71b3623fc7ab82. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZWFG2301807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e65ba06d440f28e90e375ce3987545bef45d3f208599430fc8b836671064df. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/QZWFG2301810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345ddf371523fdfb57a1005ad1579e78b576fa40d7009520b360fc5d21406bc7. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZWFG2301811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1933d97ed0c82f9cfa5117ed437a68d8b8b30e2d0908b35a702b5e583ebafa09. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/QZWFG2301814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62eea84a604131744c7e0636ea02baab70cc0ab25f31fc2d837f381d4f62a96c. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/QZWFG2301816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d2cd96488342c46d3e287a27ba89585d1aff46efb2042a5def271ff7e68a7f. Chain 2 (Bitcoin): anchored in block 960370 (2026-07-31T08:38:45Z), 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/QZHN32336245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12e69e95e81fff442facd4e90e02874b87aed42d56cdf64ba9203e848f507bf. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/QZWFG2301820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb79f988c7ddb798d45fa46c6d12c53666c5dbcb729e36c7fd97638ef9ae4356a. 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/QZMEP2301578.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d189924ca6be5b9811037078b966fd3f53d6e258fb4fddd9341bd1042d932b7. 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/QZK6H2099005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbee42e4cbba14fa55910900bc49ff0ca825f8b982bfd7a9aed17df7ec9697974. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZFZ32028052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1392b6e58086fe05ea84a97cb22059f1070ceed86f5d2c683237506a3f736111. 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/UST8K1836138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe76070ba9e287ab661882b77f3d9be48a80d74f7a10907cdef4aa2a9d809b43c. 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/TCADQ1897657.