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 0x69f40d1b788fc643f54fcfdcbcd19742f4cbda9b047cefcc59288dcd3c012897. 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/b8521786-a74f-409a-b830-53fefb97cfc4.json and https://artists.proofprofile.net/proofs/artist/b8521786-a74f-409a-b830-53fefb97cfc4.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 0x48fb726e5c87cfe2e470530becfce33f47343958cdec2e92207fce8b1a48b796. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/TR0530601632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fb726e5c87cfe2e470530becfce33f47343958cdec2e92207fce8b1a48b796. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/TR0530601632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6410203b6d94986ed4fc33c3a86fa817c2f5509a7c9d73f91f44e02ac983436. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/TR0530601838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb618810c0fdb23bca555ce692e0378ba90dd0f964e40afe5656f896004651ac. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:05:55Z), 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/TR0530601841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51188f661b8dcee578a12c56d6cb951566e776ceee3c7c4f94e1dff9381ebc77. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/TR0530601594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7062d3c8c77f884c098aa28e6046853aa9e07a2ef910de1319e54c06d084ef9e. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/TR0530601595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4802d352118d9c24957bcf4267d7965e64a1b97f8451e95e4e6a63d61d7adaab. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/TR0530601596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899401592959b86e040f8030268184e756b43614448b020f1e7e42747d594771. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:39:36Z), 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/TR0531203153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a32da9025926b320931555bb797b829dff9d3dce5894d86b25caa7436937acb. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/TR0531203155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x373908a610acbd377e83ddcc6f4951fc4c94df75a409d7aee072f4a095a75f39. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/TR8220900006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf5bbfce6d5fc031c2c849eaa04de92a6807fea9385ff739b3078bb4ca12d06. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/TR8220900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba298e375559db80d894594869ba207f22bcc0f6757a337cdca7c0a155336f86. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/TR8220900008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2902a36b8eb23e7002228eed1951290a06da63fcdea9c431ac105b1c11e80dc3. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/TR8220900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e7d311d855b1634e072f605630171f53dc8b83b6528c224e84c3b11ad8fd016. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T01:38:59Z), 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/TR8220900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7e74c12f01d25398fd0b646189bd3602c5a489209f468e11d86a845652a6bec. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:58:15Z), 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/TR8221100093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bd177d8adeb2d9775ee991039c01249d285a4c54f8d31b4af1a475d3db42f35. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/TR8221100095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec86c67adf77d7ddbf72e82cb31f15d2977c56c23cc716558897aa3a709502fb. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/TR8221100096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce05a329eb5fa3c761cadbdaafebcd743b2f84f2a78e943f336fc9131acf9d2f. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/TR8221100098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b74b7e6e79d9a072a6202e1b02ce9ab9cd7f59cf3f5c796b17ff356d3888af3. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TR8221100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c772b8ec7a99a2038e40f815b4aa70ea8926e65baa9bf6fee3dfe422b0da56a. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:48:16Z), 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/TR8221100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4982d9bebb7710a51486376805ec4a359c100ea44cec9e1bb80201cedb14072b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TR8221100075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c799421ac5933bf8fcbb6349ce3645052db4931ff31e028dbe02220efc93804. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/TR8221100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf034bddaee6ca3a52a32aca2478f36bd1e290b123b0f13f3a5a72f87a6e63e. 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/TR8221200266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x963fe96912431358fc49f4e4dbb9bb79e5e44a9c6ad041bc92f19bc7407410a4. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/TR8221200267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c256ed016c664567ea94932daedf210a282e1f7e1517dcb704dbfcb96ba9d4c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:26:35Z), 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/TR8221200268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x086e8c533e269579af20dc898bb1ee7ba63f99d67abf3c8c79ed88c1444c72ec. Chain 2 (Bitcoin): anchored in block 958666 (2026-07-19T05:00:30Z), 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/TR8221200271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f140144644831c2a6caea9bdbefdbcb2e8f520980e5a77f5122b687d88d0c4c. 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/TR8221200273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4798193330a0e9dda2c75cd01ca0f049dc78e488a8bc2ac24267344441d742e3. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:00:50Z), 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/TR8221200275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08b1ed28b23482145305f9580d197490ec72f7b017ec813a4910b44700c309ea. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TR8221400323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb8b5a30baeb1ad94ac69669e3afd723e299be4972c2d3888ad3df7621f8b58. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/TR8221500343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17094e12b816f6ab62e2c544bbf1f4e791f8304d3a9fb023102ec32f8fb2cce6. 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/TR8221500344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d195a98fd3cb73533b693e29a4ac9a6fed35da0de6c31828c5e78aa660fa5c. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/TR8221500346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35bde2941c3fa4f7515376019acbd002d6714622d949cc977c0e5ff3a4b3beaf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/TR8221500349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9d31d0ae6f336de6e82b5bc3b8422a67279a9cde533c23fcebe6f67f8fa281. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/TR8221500350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x944ea49f2ad41d9ad10faa2eb8681889fc65e3b75cdb982e8b259683f3eefaf6. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/TR8221500351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2325f68a45126c2cd9729a43d9f5a33b22c5137c78d2a1548dfd358d06af70ce. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:00:38Z), 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/TR8221500352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb919543b40e7532d4fbb2e70769f612e610b2e482bd0eefda094106d97bb3f3d. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/TR8221500355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55f2ecb9f0c2e9a634a713fc735aeef192075d56b10042cbbbfb496b9296bae4. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/TR8221600376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08782d22faaa7608d9f0f3079175d29b405c6fbdca64e8df90cbbf216b3ffcef. Chain 2 (Bitcoin): anchored in block 957810 (2026-07-13T05:55:46Z), 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/TR8221700399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d8991ad60d9f1bf29b2d973e19627d5db1f0a8f0875b5130569b4bd5bc1c27. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/TR8221600380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17f1fcaafb35e662035d39d4b587d886e55761db97542acd0f625303b74b6556. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T23:04:08Z), 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/TR8221700409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e34eec6ba9b758a139972f9a218d6fa679cb72db0e62fcf3912ee661c057db6. 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/TR8221800416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86e9cb90b92fb4207ac30625f5b403fc6d675ea9109df026f11763f6376abc3b. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/TR8221800418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca0da47f99bbfe26a281237a76a66f8b65caf521f13ceed41c66cc9a22cd8cdd. 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/TR8221800421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407f765ea995b1e036760c5f580076961bed1c12ae9d7eac22460f5f74d966bf. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/TR8221800422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819ff7294ef15d243de689d010cdd74cd8e2ef06113bdf52a4172000da0a9551. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:00:46Z), 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/TR8221800424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x686a498a141df207e2b9afa6c491b5a401bf622f82a88f1c2dba7a7104f60de8. 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/TR8221800425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00fb35f6f2d8a6ec9139e77ec32990651ddf2d93b15607037af4a0db8d759879. Chain 2 (Bitcoin): anchored in block 957595 (2026-07-11T18:26:17Z), 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/TR8221800426.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1042192fda693ee335cca8a004dce1ccf971061c2641602ee04f875b585206af. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T14:39:40Z), 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/TR8222100480.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7b1032bafd9b256a5caed87ffedf56778bfe4fe773f66056ca26f371824703. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/TR8222100485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf2a98b333e55f64dd3233307002c612fa54ec38352313c16f9fc56fbec2094. 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/TR8222100498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30291228deae31972ad86f2d3e7a2302a00dde964a45d8aae81615fca62df471. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TR8222200510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c508920d84c1f12f9a8b87ebc9d95fbd5eeefd784fb03eef7b963474d9019c5. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/TR8222400563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc319c912254f5eec4ae3d4774551b9e41e5280e40b667b1811c566c8af9a860b. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/TR8222400570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3c7b25d839c191fb03d62fc033012137faa0e607323ad9d5be01975ffa2eab9. 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/TR8221400334.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5586d940e61c36788540a437616c4e8bb49d1d9e91daff1ead954ceb4e2a732. 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/TR0530601829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7117d9bc8faebaf57f3125dff42796cb58f565dd80b486e6f7f6b04dd2524d81. 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/TR0530500044.
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 0x69bc834f8700813de617e752d21ac13e5bf45b0a44fd96083942c7fac98b4b00. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/TR0530500045.