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 0x5359598271adfdd20e37e8a546b24b3a2702f39702301dfb81403bc029d33a4c. 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/c5fef8c3-0abb-4420-8f54-ce6d4da3af1c.json and https://artists.proofprofile.net/proofs/artist/c5fef8c3-0abb-4420-8f54-ce6d4da3af1c.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 0x81efd1819e1bea922d1f26752fa81fe58624fea73ccc819bce545bb3640544f1. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/USA370580627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d5017dece0bc87e8b85b5de268ed73dc9873cd41990f2ff05b993ebeb3d70b5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/LVA051000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b2cd525ab61e066221529be5d340dd1b162c091d8a85aa11f398bad00e3bf95. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:00:12Z), 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/LVA051000046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea13332315c2832e1a693b35b193e6c3035303cfd286b92f63fadf7c7dd8d63. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/LVA051000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2ded4e9eafaaa73e9e981f6f2aaa85c40619a3ebb4ba7dd909447679e4ba6b. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/LVC100500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671c99706b5d3bc3e39f7fbbf980fe6ac0ffd4e6785b227b4686883815285d34. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/LVA051000030.
Viss nāk un aiziet tālumā - Mans draugs nenopietns cilvēks
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85498dabac6429dcde8010291924666217dbc260f3357c44be55209864710f0a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/QM6P41710142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4815845e2b77853b117b8886acfe109dc14860b7eefbf77589a0f0ab6117ea6a. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/LVA051000052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32622351962468c71534920f9a925ea3bae97c2b410220062fa2b5d65dbea9df. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/LVC100500058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55d6fbc00bcb44fec98d5d1919d288897ba547d972b23b1b56a43c60c61dd278. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/LVC100500060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11a11c000eb888c2e17e67cabb44ccf8c2958d73d4093540888b0bb84ff8f7bc. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/LVA109600084.
Vislabākā Latviešu Dziesmu Izlase Bērniem
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576dfd095c05eaf72dc17207a07e954231338f1336f82e46a4bf8d310a2a2b8c. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/QM4TW1596452.
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 0xf5749e4c9a4518c95e66bf819c200cbf298f2527214a91f8870eaf8dcf0667aa. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/LVA051000042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43f7d1ce688de16392eff4a16e2ea07386a03da333339cb49e6315e7d9f6acd. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/LVC100500053.
Latviešu Šūpuļdziesmas. Tavas dzīves ievārījums.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3f1e6f32ee98771c0e86ccd7fe55ed54c15fc33923a65eef858eb612ca21bba. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/USA561408476.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43f72064f0bd76efd65f957586eaae0add3f664d9d12be06e1e73c923d67315. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/LVA051000043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07226dbd8efe9e6531518c460b9a34e0f7c93edcdda7ae3451f754b423a68661. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/LVC100500043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e1cbb8ff56ce61d04cc79717e62b5e8ee6a2d7bcc63364c40551ffed822a5f1. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/LVC100500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb3db1b84e9b0398972c5f88fd047a65112321d50f85c32fa14ab73d27344965. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/LVC100500061.