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 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 0x5c3284ae396281112d95458cf1e00875274996cc7adfa2e85a7939e336e456f0. 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/d4930418-96ee-41ce-9aec-2110efc4c3b1.json and https://artists.proofprofile.net/proofs/artist/d4930418-96ee-41ce-9aec-2110efc4c3b1.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 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 0xbf64d2526a7138553acb6610adb26bdbe029c1d70b485a920f2b23ad4ab92734. 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/FRX872044031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb64c3fb0795e57eac478b9c6349b75839ebd49ed311d869c331b986934ea20a9. 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/FRX872044032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x638df56ea3c6e302e308af3889360cfcf36f3150f23c81948ced0b7656fec523. 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/FRX872044033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x248c3cfda6534ed8211e1acbd398f1cc6e345155c41605760a2ea4f8b6652ff5. 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/FRX872044035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x134c048b8ee44f68a5a5147b4ea17c0b274d9da332f7d7f41b442af9720cf8e7. 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/FRX872044036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03320ceb73e7d60b1f5356eeb24a1f6432dc1245a0cf9ef31687b96e827bb984. 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/FRX872044040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50040b0717d6e1fbb43279c250a01acf99acef76bd72ee4ecfe760fe8f0e9cff. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T19:26:13Z), 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/FRX872044042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc7d067aa5c0b2aaad3e36e9deb50e360be8f3f083d4d1ca5ec8566ec3e50f1. Chain 2 (Bitcoin): anchored in block 959076 (2026-07-21T23:41:40Z), 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/FRX282175885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983a1aecc17ab71468cab8baf479970fb705fe0224ec2567cedbf40fc3bb424a. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FRX282175887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9c8c6c103b256084fec9b8a4ad31f115759d17f1f2a8289d87b30c293e00c65. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/TR0390600202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x287a412a7107ce6f0d14765ab45cac20280ef1acc1c2fa562373826c684bfb55. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/TR0390600204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88d99dc5dc20fb4539d514f04a9b23dae7be3cc9f631fb57dd81f442bc64be94. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR0390600206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd76dff89da4c2757763db678afc997b2472dd5a573165724cd4e17780d6453e. 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/TR0390600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe765f8cb685237bd89d9db8a504c559ea24b9f798ca339f5d35ce306af71da23. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/TR0390600210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b89259a902a1f9f34951c1dfe628979b3e650b713862d3cb06339449578a64. 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/FRX282036107.
Lawukê Metînî / Bedewê / Lorîna Min - Live
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b7db704885e9697ac3898eb4e253d4329f454bf073c23cbdcb2d04485ece54. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/FRX282036109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bdc99e5c2ebc5b26ae99b5e320f8292594052c67f85bc90ca7ea42d7581c68. 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/FRX282036111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10647293c3bd042c861637347f65e2f9b086002bb72386f44000d2d56505564f. 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/FRX282036112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b94dae490bf0497e2c9c88820cac57518a2fb18a44ab54a47209101808d0ce5. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/FRX762079252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60b3d661f75ab00fdcc4a6044680131f4629737b5aafbf1404ee924eb9468878. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/FRX762079255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6874c4ba559ce76a0e5418e141cd1ee12307c296bf14cddd9473985aa8f1eb45. 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/FRX762079257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6197016855cb9f33ab0029a5fa89b8b34987b13a468cc5bc69e2765fb1c6d6ec. 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/FRX762085745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0f38427c9e495b46c150cf709ab8c4b578aaeb1a70c561d19f5bfbf0abaafb5. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FRX762085750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d59d912e1ca0cc5a9a3f127d621c0efa77a272e77c1cfe98e900b34ebe52e95. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FRX762085754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96813f94a3fd2b8d2d5ad47959cdd0957abf31df0bed0da9df79e441ad9cf885. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/TR0510902340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841988b7b366d2ba96156c0edc496dffa44f56a887e530237dca33708fbae836. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/TR0510902344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb353143ecda64b325e39162a8e6f0c2d2534de53e4f029e2b22915f7d69606. 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/TR0510902345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b09270cebb30cfcf50bd62cf5b79aed503b7d9348a4680ac02f0d4ce8429abf. 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/TR0510902346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd968bd9cfed1c7db13251673195c15505a8c21a438035ea707920495016fc7e5. Chain 2 (Bitcoin): anchored in block 958476 (2026-07-18T01:26:56Z), 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/TRACC1500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5a63829314f04cc389e928be0f8afcf3368cf16b6521772a0d84ba6b5959a5. 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/TRACC1500056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5400fb86c90882aa775b73cc7bf96a090dcc93e2fc13a1a5800bff23f1c3f9. 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/TRACC1500057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd469be213d8454ab9f7335451bbc3325ba7782fed821beba913ad08dc11e1990. 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/TRACC1500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7b708e7ba2f22fd508d96befb1a28f432d7f025780ec83e682b4d18d136c08b. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/TRACC1500063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x420e4369f1f68d5eeb8083482115a52c6427aeb53b7563edfc624e0aaf2018ad. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/TRACC1500064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bfab64dfc0326d28d125d463dd3b71f4040880bf2bd6331c9b17295fdb16e6. Chain 2 (Bitcoin): anchored in block 958346 (2026-07-17T01:47:42Z), 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/TRACC1500065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x796cc0a66649763b0ca55d05050527256b0cf7c1f09096b64ce7c51acc4c8ea3. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/DEHY11800491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc8b86fbf5963b095499fd24a6817f65741ca29e5d00ec4fe13b539f9503520a. 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/DEHY11800494.