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 0x355798048657bb8d14a22f3f3bc3f6b766dbca40a59f2aa38aa910740f92fe1c. 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/fd141571-8243-445d-8527-5d0571c6646c.json and https://artists.proofprofile.net/proofs/artist/fd141571-8243-445d-8527-5d0571c6646c.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 0x13a68504d41484ec2587f4c5a09f8122387b313eb7bcc36bbe3612fbaa058e9a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USDY42251362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f550a1f8ce2b3a25695d2471db6dc79ab4ae5d5c4f316c98a72553a3f93049. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/USHM22249699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce293589c40fc755a126cd25c42b117ef9c781561dffbb6b132a2a593609ee98. 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/USHM22282855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdad306ba288e6887b1aaace4f9028ae6b8f6920e8fe68e6e01dda4c240b07d13. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/SE6XX2220547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80db4864a42a3aeb56d52ffa7607ba6313e09e3b5f47fe1b253ef68f8f63cca1. Chain 2 (Bitcoin): anchored in block 958246 (2026-07-16T08:09:58Z), 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/USHM92200854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x483085eab3faa2b465f077374e26817952728a7097fef533d9c96fae53eab1fa. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USL4Q2279163.
Mani O'rnima Uzingni Qo'yib Go'r Bir Marta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1159358abb3c48576ab75f3dc09cad93013b8e79e1e219fd97e59c228ce96067. 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/USL4Q2269593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6fea05121845e4cb7e15aa6c026a18d86052e4f44b6d9db4092194e0207e62. 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/USCGH2333144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d578a8f06d843f66a3db5482399d55e1d9b42e044eb8f368af3464d0f78daf7. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T16:00:05Z), 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/USCGJ2397355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa452c144c4fb8ce3bfbbcc1fbdad0536d266fd6a2c83b179ca631944008d4b33. 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/USMH92338494.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca52491b536cec03a6ea56389cb2189a0912b8bc7a035a084c0eac714eedf5e. 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/USL4R2356640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e7e31fd0b566c98908a4895707cc90cb6f14335a289116f445e541090d2609. 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/USCGH2406190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4391ac441e59b5545caf77a697f55fe04ff172da251233ba1941c2c66f3a4d46. 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/USCGJ2476213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7544fe716aa60243ad6041f803787d4ea13dad8555d2d9ff878215c34e168a3b. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USCGJ2476214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe8420ec3f0accb9d3908e9923841b6c88c81fdcbd0aa983eed3c3002a5b5c9. 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/USDY42429017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x754e5a22d20a8ef68953384a15d7f7abac88ce11f2399cbe7fae732c50c58b4c. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USDY42429019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb053e9b4d307d2efcebb713ed3b77cd5e2dce7cf0454db4f44646be0ce175068. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:54:50Z), 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/USDY42429020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d63d14c32fd11fe30869e90f166ea67788638277aaa5d8d738cdb4fc540c237. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T01:36:57Z), 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/USDY42429021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b104b2dce70a71d3ca3576904414f325fb5cfce204f7a099f0a63f8cf275d7. Chain 2 (Bitcoin): anchored in block 957603 (2026-07-11T20:26:17Z), 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/USHM22400352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce20a2e4c8d696fc318ca759a30967854b5b27432e5fcbcb4fc11f1aa8216472. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:50:33Z), 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/USHM82426209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9be644242ede7e3a80f765fddf2398f56ed19efad5f51b5929063498874d094. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/USHM82416971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21ae810559cfe5171694ccba71ecb254b74cf2ebcc3c621e57110eeb7aa4c06a. 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/USHM82416972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa09e0ecb1cbeed1e2458594e4f2f5a1e40f0d5aa447edf6ad7c063b44ecd0773. 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/USHM82416973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf9d57ced75c620856d78603a93fc62509cb5acce890a68b60bcaf41d89d619. 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/USL4Q2444488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfb1b19843fdd98535391e98dc6480399abe1d48e984cd05625f63f88d8a910e. 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/USL4Q2444478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39c4cc9ab7c993a3821b65b04f70d77989829ca8be4244f22719dbd4ffd8fd76. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:59:46Z), 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/USL4R2454191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a157f85829e263e0094640b72764d1f154ce771760f2723c2f9e4b86788357e. 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/USL4R2454192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2be1a0c78a10219039f3e841beb75bcb040d3837147f90fb2b3284e5f0f804a. Chain 2 (Bitcoin): anchored in block 959052 (2026-07-21T22:48:22Z), 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/USL4R2454195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69abcdb8e65b31d6382f203750514d32603145be9d98b36d668ccc1fe5bacbfc. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/USL4R2454196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3dd06c98c726a5da08afe9647a73f9f9e6f6e78db025d5cdac53a962b3e9464. 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/USX9P2440360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf57ca8f705db9cfa726aa79fbe6abd274edb4ef231bee5659a2223834fc8e5b. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:10:28Z), 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/USL4Q2519711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf4e272edb7bedf6b3665939a0d953d9c8476adffc38ba000b2e4fde1f3335c. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/USL4Q2521237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e8d4185ced33375c17c164247caa0a265ee60d7d86abc9e9225ef457c6f58a. 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/USL4Q2529040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17c67fab7fea8d9d892e2e49bccd9576968d4a5395d9dcbd6f734a894501911a. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:52:48Z), 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/USL4R2537240.