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 0xb53d61cd2775ffe1c712bae3f1373ab4485c37104fd3d5efc00930718d424d48. 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/c50e5a0a-5465-4119-a011-b85082236dd5.json and https://artists.proofprofile.net/proofs/artist/c50e5a0a-5465-4119-a011-b85082236dd5.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 0x6eab7c2178cba426115aaddc93ff5fa98a2709b27b810a80df6ded38687e5daa. 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/FRX201847116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb10975d917c18e52bab75bbf86582901acf02d2c7c222403e27f6607baeb1bf. 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/FRX201847125.
Подбитый Кит (2025) [feat. Луперкаль & Altabella]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x618204427d634c668fa9635ddf6ccae2b93e3fa2f8f313be41c3397f2af6a438. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:26:44Z), 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/TCADC1767072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae9688feb7bd8e05d4d8278096fce376905f41b020e187a5855e50a20762594a. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:43:34Z), 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/TCADC1767074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4089824831a3895606945dfc9d72230fe9bcef632188b0cbc0ec094f81251b8f. 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/TCADC1767075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed19a46b8e560a4e2c8a2076d7c6536cac4055395dd558c27ea2857447d0760. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:45:01Z), 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/TCADC1767078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82e437de513ab47952c44d1998ca7a5fb4e058c48e0d78cb063987c3e822257e. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/TCACX1773186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7b53161aeced1d1e90f8ec2e581034a646d651824bfc6943cc4b4ed0bb3da4. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCACX1773195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc73714fb507f7f59404c92328778b66e7244d8939a517c3f6675591c396da0c4. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/TCACX1773214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x264da3236f5a726723975107941df691583c281e8c5415e16b704f1ec50e593c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T17:58:51Z), 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/TCACX1773217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e571238122608dd570372996784a4b32a43d6e0f45406805e099f0026112bc. 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/TCACX1773223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14b8fe5d70d487da65511b45f99622c83caa8aa4ffc6472cafbc1c602cb9d49e. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/TCACX1773230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc188eb6f8f92fdc9ce95c2ed22e41a7bf24fef226209e60bcd3f1158e03f61bd. 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/TCACX1773242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7235b498e45dc2eaa3594c8fd1b517fe8741e13d8d355f3cb80c59cf7955f5ef. 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/TCACX1773251.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dbb60e17e49df8eb7884205b6e9f3df00f950bc6352800d0e10a14852f6a0f. 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/TCACX1773259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e18741942bc7180d180d309b9e36368fecc01d843e11d1d8c2f8caf5efede67. 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/TCACX1760755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x031cd11620e667e38b8dd56f9bcf5c60011996f52098cc8df86164b2fc3833f5. 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/TCACX1760766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31f926f94f53833c711c5fac75788407063f30907c78145ba1ef98d2a04b4709. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/TCACX1760770.
Зелёный Морг (feat. Нигатив & Stevie Insane)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78818f02098ec612736568c6c52065a7a4777150e025c2a3e26463cba5e7607e. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:55:48Z), 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/TCACX1760780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb28b25d978a9b75f331b7311f6780f507c69eacc678fc75ed66711f5c2597c8d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/TCACX1760784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1907d12827be713351c279a99184fa89727f2392a0a278d52c57497a1c413ef. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T13:57:28Z), 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/TCADF1737992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1d3d9d0042647c69ca21e5259c245a9690405dc441f679dae48d5f2703b526d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/TCADF1738005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad78283cbd4f9c336f435e5c251fb11e2246d1825bc1cb8bf7543f9652a770cb. Chain 2 (Bitcoin): anchored in block 958571 (2026-07-18T15:39:25Z), 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/TCADF1738168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb052c7ca42750f4ab0d05170f45159fc0e700c61399a1a9bd874c4da5cd0e97. Chain 2 (Bitcoin): anchored in block 959009 (2026-07-21T15:19:30Z), 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/FR10S1942563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7327bf8f38498502243160b9ada1dd7aafec51ec5801f84fab0708de538af693. 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/FR10S1942564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708e29409af49caa55565bc0009ba11a286e6f7b6087e247eb0bac5ee337a632. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/DGA062072708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5550cd24d7ace8eb2dfabfc4df08ac3b3e764193ea34c8a4b7733b198f4ddcd6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA072154394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026f4a272caeaedfb758a3b30acd9e58724584e2707e17635b62b2243fc4e511. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DGA072154403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f0b00065994f736d78e956f18cb47245204b6abaf94657514a4562b8b4c5588. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:58:24Z), 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/FRX452125966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77c1869d567e5273534f47a5e22800b9fd8f6c38ea49533343a5bb1d19225035. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T21:51:08Z), 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/FRS182136871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33407b0efe3c1d16f72d54b67418762582ab0202c94b3408e354fd8900166bbe. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/FRX282277923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f70c697a3d9b5e40713ec860a95da8a0bca0b34fa01123133b7ac1690532ba2. 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/DGA062244177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x039fbfff980ca4c72299cfb81abcec6be78be4eac1a95f5782c3bc7d59bf6686. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T22:50:17Z), 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/FRX282453286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfdfd4179c604df2d85df7e54587a6d13c2a79a7d54f1204d875cc5fdf4e98e5. 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/FRX762423710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf34d3f5b99c64f2fcc39e88373d827453c6f17abdcc99bc539eebe0874220c85. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T18:24:19Z), 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/DGA062423745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f9df63c59a6de468b2668f68d9f8289a6b24b21c815718045b268fdc7af14c. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/DGA0L2453425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc95bb956646b98791ae1637401e419fd07db534333763a385d5feccb5c28b80a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR10S2560142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea782a3e73554d574531bcfee1ee3a44717f0c8819ba07e56f525ce0289239fb. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:34:25Z), 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/FR96X2525793.