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 0x5ea7fb123fc215907e6ce2d29dac7357bb6704b65504c0b6b651491631f441ae. 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/97d06a61-6121-4af0-8891-42ec4afd0e2c.json and https://artists.proofprofile.net/proofs/artist/97d06a61-6121-4af0-8891-42ec4afd0e2c.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 0x3094bfec52051882ae45426572c41be8e402da002f3e3a6c1530c4c08030732c. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/TCAHK2308946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea45b1ee8f3c55bcba549c0d514950dbc8e1f4bf6ae97f4a085633fff9dbcc6d. 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/TCAHK2308983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8d0fd5713039900782002f5cb3383f3231c218fc9060aaf6b075dd1211f4d29. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-17T02:55:13Z), 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/TCAHK2308991.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b29c7a76dc3782bddad03416e5c4efe6d3e0993ca987b1cc12f5122ac470364. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:08:10Z), 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/TCAFG2073020.
នៅតែប្រចណ្ឌ (Original Short Film Soundtrack)
មិនល្អគ្រប់គ្រាន់
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64168b5b366f5d09994c1dd9d97787ef8fcf5cb6e9bfb02c80dac29a919d36fb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/TCAFX2162346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd91caa2417d8b465923e5298704871bfc77d1769a09b877fd0d0b959d2e4df. 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/TCAFX2162408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f1db43822a84e0ac476f98770683df01b7197a83b0a83d77344b9ee09f5e31. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAGM2267710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bd08851f5ac94158f427cfe4c9d2819a4f1c6ec2381624af2210a65a09c324c. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T12:23:21Z), 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/TCAGM2267713.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a045597e1643040faa6613715b54e6105b84d344426da376af29e0fff01e024. 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/TCAGM2267716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbbff645bff431be8511e710e8edd6cb9b9b246b4c03cb085c061f99183ef22. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/TCAGM2267719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8c354b829d5dda602ef6564c939ce784bf625361ac84edb863554de0e382a92. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAHD2324638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x208930bee671cc32deb8d56eb0a2e0b1379f8346a4d266c251c0e9990c839565. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:58:10Z), 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/TCAHP2360796.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa9e3d8b1fac3e9e73e5fda87f116e25a0340a2f43a0dc13e1ea2bcf6dd70f6. 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/TCAID2412171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7158542ed86746eba329aea986fc2d50d52661b20143354507979fe4e200dc33. 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/TCAIZ2489726.
ផ្សងស្នេហ៍បន្ទាយមានជ័យ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2175051fa8f72f60a239cdffc8b4849118b3999b5e5bf06a8d46072576a496f0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/TCAJP2563937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a720bf096b0f4498eb26c2051e4dc7ff0514fc142db8dcc39aa314e1ce8aa29. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/TCAJT2522657.
ស៊ូស្លាប់មិនចាញ់
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2868ce24134f89395d360b209a19054656188cf8e5603d6aa69bfd56a892f61e. 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/QT65Z2568884.