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 0xfada923cdfa63a261f4bc17cc767877927c7e3b48f84f34e12e806c89a49fed2. 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/c0605c62-5723-47ff-9c74-cc016bd28b77.json and https://artists.proofprofile.net/proofs/artist/c0605c62-5723-47ff-9c74-cc016bd28b77.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 0xeb151d5fc11079fcc100cd87ad1a20592b6d20d4931943081c4df84fd2e67123. 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/US33X1715401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb28e78d0fc8d8858050702e87d0f7f25d94aa36fd833873b6a427ba2c7fccff. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US33X1715403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf57f35f7d846c1e761e78f5c8da3f32607df73b98c6987fcedf3dfc1e8238b60. 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/US33X1715406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89066d1ee6e5cc652f144e277b5fe35bd34a264ff779da03ae22e1ff04add1f. 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/US33X1715407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06dd447a75ded1a6a134a2f3e8f14097143063b4fdb803a275303f53140ba13. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/US33X1715409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc51fe28687f28a8f61a107839ba1f5fbc926806da71aa49c3e595aae124edb2e. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:49:30Z), 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/US33X1715402.
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 0x81075281972b74b026469a51b11f831dc43ff9cec7c78cb059f80d784ef2f301. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/US33X1715404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1716bef0760ab0f84526e8349c827bd1ab714cca7a1f3826193548b5cec1e0ab. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/US33X1715405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34e44040e3a3aabfac0b898c49495a8c5b032ae12a4aeb6ce233a45736dedd19. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/US33X1715408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb434670678c3842488ef423b092b03567d12835906abd1c089238c47c2b85b8. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/US33X1715410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c17a45c50c3c4c1bcd8708528c2bc98be94452cfdbeff9c0f873d61b132085d. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/US33X1715411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3be784fb9a6a47d5ae99889c05b614b41134ad808b2fb576b3af970f89b3b47e. 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/US33X1513704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e0213f4ae4fa862e2011433207ede991100bfbd02c0d7ea16353b98d3c64ff0. 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/US33X1513705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca13db06617acff9b51ec0f4e70f2ba8f8ea19f0dfd4d08b7c80f40fca6ae9a. 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/US33X1513706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a4bbd9dc18c33cc9926d80d08df96a67d465524607bfda9e7ed31ff16586022. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/US33X1513707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5169643cf338e94375b7487d76a39a5f9d36f6fb9174dbcfbb992bc8d00c6749. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/US33X1513709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4dba650ce23a70ad316c1b16d30e520d3b823aca4b5b34fbbcb6b8dca0edf63. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/US33X1513701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abb56ba40a224db50fcd8dc7c4a53b0600b9f8c535f23cb8892f394a56b9ae4. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/US33X1513702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35798738787e5917aa450c7b4fdf58117fb48325df66d56dd889bccfc00f5f94. Chain 2 (Bitcoin): anchored in block 960175 (2026-07-30T00:16:15Z), 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/US33X1513703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d64c26d32478e5b6fc69c8a693e73a9081930d592aab664d454c458ff75c27. Chain 2 (Bitcoin): anchored in block 960187 (2026-07-30T01:34:28Z), 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/US33X1513708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb989cceee8ce0c85d691557f27acaa008bfff608dfd482d27ed5964d04c1e868. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/US33X1513710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383443896abead0f3bc915d09ab7d60b5edb71a7cb458304c4b5552e02f2d26e. 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/US4KC1191801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a123024973726168b046be6abea6fd7519149d1ce4fcc88244bab5de5cd81fe. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US4KC1191803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dae1ae3af22b019e33b004ce775943a8b8fa8b77a7bd019b8fe8537b010e663. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/US4KC1191805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1182a28957a0099d4ae78d4e3807270ee52f4ba41289b09666401f04ee8a8fc5. 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/US4KC1191806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd32b05fa1b4be20ff4c4c40186c5b0573ad8198995227dcc30dbd8b4cece54b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US4KC1191808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x238ee15083ced1bd9e531b4a6785ef07542b756f1ef7f654107353fcb059ec68. 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/US4KC1191809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68b8ca9b05d4f6d39146691bd8da8a5984c88ec4862e902b7751e6bfe2d3723c. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T20:10:25Z), 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/US4KC1191802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96c57c597b9aee9ccc72973df8854bd0e656545a1636969a185865dbe1ba8193. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:05:56Z), 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/US4KC1191804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cdaeb8c1b625535a754e6f4e195ff67c24c6e627db3741edc18c3a29c551eaf. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/US4KC1191807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ec73edcc7a8c733f0cb898747994422da6e9906d866f9b41f71a5e3b34589d. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/US4KC1191810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8369143a38e1ef68ea2f520e573572feafa1ff18c92c08aa2bb8484430eb5d6e. Chain 2 (Bitcoin): anchored in block 960200 (2026-07-30T02:37:10Z), 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/US4KC1191811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa75a0368968bb4ecbc11b45978d5acb56f762f39e9674feedbe0736ed72396c3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US33X1412901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x249cf78c3f0f89b421b5248becd4733f35952bd55eb26e664e70bcb4a8f595e0. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T21:02:58Z), 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/US33X1412902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x309ac4d05db89d66217bb46320097f038b8cc56be9cb0eb2f794356222053be4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/US33X1312601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72b1cd519084d9f342627d678687b354d069f70dde3180428c6fdcca7dc9e55. 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/US33X1312602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f538ab13fc62887170d3046e0a971ba66cc81ca8e9f4abe5614a598152b0a44. Chain 2 (Bitcoin): anchored in block 960276 (2026-07-30T16:01:17Z), 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/US33X1312603.
Jam in the Van - Guantanamo Baywatch (Live Session)