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 0x0e826f6d60cc94a36e97b3d915f88ff1bb3f61d64640f215774c6ca5ab9f2e9f. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d696310-ef10-4f2d-9efb-358b6e0bef6c.json and https://artists.proofprofile.net/proofs/artist/9d696310-ef10-4f2d-9efb-358b6e0bef6c.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 0x26f758acd736ab0477630912f6b403b9cca39863c3a552febc4b791a15fb084d. 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/GBSMU4294000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94d9f49b6c4e15821bf20a7aae41a73fd94e97a92a18bc784c8d3738626894f7. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZFZ21938603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb68ed32f5d30f529663347303b099628a1ad1faf5310cf960aa11ecd0162dfdc. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZFZ21938608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cd2a0831cf0817ee10b06bb4e3a7aefd56879b596c41c849643dff8a81de72. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBLV61917421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ad7debd94aa619f6789cbef3a9f73b7562a0f43d95d6c7e9dc9fe7a0dfdbe5. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:55:21Z), 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/QZFYW2026563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe75ed3b7ccc1c6a9542534507131995186940d51ce2499f7047d804143f5cc8. 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/QZFZ22025980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b95bf932051208594ab47b0654fa8a104700380f7e4066e899fe38485176877. 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/QZHN31985491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18c6fa095cbb17cd101b6f38fd7840d1e43990e0b5516e5d9f3a6373e12c4ee4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:42:33Z), 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/QZFZ32004375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d105fff76b66f1b1f5dd6868e0e19709771343f3d147a0b2b741ec87b10119. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:36:21Z), 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/GBSMU4293440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7fabbce99d45e3024810fc75b2ef4e36e3bfb050ff1fec02d8de0e5583a2e28. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:03:28Z), 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/GBSMU4293447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2993b0daddfdeb8acd85272eb2b8db79038d30e55266de7de5bdd2cea6eda0fc. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:34:05Z), 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/DEQ022011155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd07bf3f12181cf33ba7c121f8f75e7756cca6fb3a512ecde47452fcc58556c9f. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:04:36Z), 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/QZHN82084738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dff5d67cf82eec522be625f09aa085bfcb8c3b9c91a54631f2c6ded98e51a9f. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:53:59Z), 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/QZMEN2043594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a21dd28f8890e06a67f7cc92461e25e9dee8f1942582b627c46d117e39c1919. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/QZNWY2013621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b03784d51929e656ef6cc34018f0b46fb51989688cb5fc1d4c6f20ec470942. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/CAN112200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b37566acd22e8ab576247532b2cafbd5f2c9b31c2aaf3b54708cfe1a2e4572. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/CAN112200462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b37566acd22e8ab576247532b2cafbd5f2c9b31c2aaf3b54708cfe1a2e4572. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/CAN112200462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbfcda8e4e8bca0e03e0600fd761e15b54962d4e09e36ed7bf0d7f7091a25e9f. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:21:04Z), 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/CAN112200624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38e619ca1a30f314f9b1803d990bda0778da8f957ed8b51adcc7053d9bc8ce6. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:34:57Z), 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/QZZ7L2428622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddbb85f7ea1da55068a6a32d741c9690375fea7fb6f811b4dc5e7d003139e0e0. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZZ772428931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0feb4fa5ff8e67a53762c454e51b1f736fece59bacb794af70c8cd9888578859. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:48:09Z), 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/QZTBA2432524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf966dfd933d414a9ad72182c79c72b4cc1240a1afe57326e15c5bd04c4260b0c. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:04:39Z), 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/QZTBB2491208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80be9f47bd3fe43d74b1da2a7e934cabe93f7c752b5e39abdf97135e148d29b7. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/QZTAZ2453707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8b19144aa8b88e2bdd73a24ec27474c223f9a8457b0d6fe18efd938ff5290ee. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZZ7R2459817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38e619ca1a30f314f9b1803d990bda0778da8f957ed8b51adcc7053d9bc8ce6. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T19:58:09Z), 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/QZZ7L2428622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda9088e61377a9a1145c042a7d6a8277cc76897dd0d06ad661bc7a8a4caff543. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:55:33Z), 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/QZTB92424695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76202f718aa52a1e684b31df83dabc7e8f594b4d8b0cb362a6dca1ab17c52678. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:28:04Z), 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/QZWFS2483833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1f724695af96e7afe719cdd656255fea6a3c1e51fd1c94802be0cd1771a67e. 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/QZWFL2446290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa18cb5b05c13a93e0138a011527f80f7e292e0dc92bdb6efa73825de6de9850c. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QT3EY2423947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd57d8b5aaf255da2bd83bcf32c522ca247bac4fbf8b8d70590810a0b876ae4. 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/QT3F32479886.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f1f255ad7eb0df364346ae8e6b89646a8fa51e8d966197f42f695f3c18bdca. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/QZFZ42510046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x288ed6f9059cdee9911732404f9da4e9ab873bd5090159a96dda0bdfc1302589. 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/QZMEN2301882.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5779328ef21d9f563d4ca93f01f5df63c92c548c47436c05caf078c7a5c832cf. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T03:06:58Z), 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/QZHNC2518154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bb77f1c721cc719952fa79cc9e2b5c034573bc6aca9312f4c5d041a12121a2c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZHN62593065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c9057a80e4ff8b496a16f4d8cf9fdde45b3296091674f0b838af94f57cf040a. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZHN82590322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2de7f19d6a06cbabbeef1fbc8a50522db69cb14841de1ff5c17d7675cca0ce. Chain 2 (Bitcoin): anchored in block 958104 (2026-07-15T05:34:05Z), 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/QZK6H2595687.
I Don't Play The Guitar I Play My Cadence
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23e1ba80a3294f56edaa91d3f85f4d96eda115969e57639b1e1ceaebb2594c1c. 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/QZWFS2511248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e07b99e91278d290b3e5fa4927c1da7ad01abbf2eb7d0ebba635c5f8d27ae04. Chain 2 (Bitcoin): anchored in block 958800 (2026-07-20T00:52:19Z), 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/QZZ7V2597889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501dadab68fe6e46aecd76a22f90e2140516737e0ee4162c391592519226f736. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/QZWFV2560332.
God or Guns, Which Is Better Protection ?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43cd2a0831cf0817ee10b06bb4e3a7aefd56879b596c41c849643dff8a81de72. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/GBLV61917421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24e6e93173684b6ec9f13004179a00f58cfb51391258557b6b3e18ca55a4032. 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/FR9Z62000106.