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 0xcc6f9c54626e9ee5ddc7cc53500a87effce270e538cc3a852ee2c2577bfdeecc. 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/8e2be8bd-77a9-4456-9a2a-c3874eca1b7c.json and https://artists.proofprofile.net/proofs/artist/8e2be8bd-77a9-4456-9a2a-c3874eca1b7c.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 0x69e613517724cde48bedf8ef764207fdc54fe9e87db9c5df16e96babe0c75dfb. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/SID050000064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5d111ba61be281497d7f34548b0aab1cb72950411b70d3b1c9daa9c2e0bdab. 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/SID050000068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd97daf9c51d02cc8a848e1faa579672e33b29ce1553fe4ef3b45933ec51242ab. Chain 2 (Bitcoin): anchored in block 958714 (2026-07-19T09:51:44Z), 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/SID050000069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b2353668fcdfaefe27b79b05ca54aac0300a407151d19d53e5b9f0b20a9a9a5. 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/SID050000065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22c486fbcd4d46a66e222d8c1c05dcc9946248af571dd5787d0e77f286ebb71f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SIA421000185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04c62d555bfecfeb26a555a17cb4e78f9c5c74d395b663943b028fc23dbe78cb. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/ATR981138997.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x174236ad2a804db21269fccdb85413c8c6a28d206f43c6fa18e663c0e9c267de. 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/ATR981139004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42a85ba92cf7cf3b46201c02a3525e4e678b6329842093451ff5dd2e0efc17a5. 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/ATR981147089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe86ee05ed2b0fcae911b46684808141109592d062dc761b0535fdde08d5c09a3. Chain 2 (Bitcoin): anchored in block 958662 (2026-07-19T04:43:15Z), 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/ATR981147091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13f77eb4fe6ba0dcab06d0385e2c782948c18615f0306620698b369c53d7b3ca. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/ATR981147097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85c51ca453ce426ba86a6a23a405d144ac502b6c2847932ebaa39fe5945f24f4. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/ATR981147099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5745339bd82bd53bca94664f097aba7c4221f2cbfb810f0a23fba58528441293. 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/ATR981171919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2cb8d58f88d2659056ff0ec09ab0aac1a1e1557f8a4f9c6f76d7a0954b2fc6. 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/ATR981171920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b7be2276582d9b8c15c48a1b3c62c4ddd8c02690f4704b865403e8c39fcefff. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/ATR981171921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35b0c509473458717e0ab989cdd99896f83966bb6fccfe3651040cb3ac33ced7. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/ATR981171923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5e938a2df168776ef5e4ad274649f741f3b239df7308e8c9db3db83747623f. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/ATR981171928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15717adb0d6bdca68aed12e65ec5c4974f58cee249ce860ff52fb0f961f068b. 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/ATR981175323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a68daded5140e5b84934b841701769bffae3cbeb14c430686eafaf4a15af09. 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/ATR981175325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3407ce21cd57edf256d1446ed6c9b0cd3521d378c9d5f4c1c95dc57a05c73085. Chain 2 (Bitcoin): anchored in block 957741 (2026-07-12T18:30:59Z), 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/SID052200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c0164997e594fd8c5b0de345f5eeab6dc83cc89a6329e909050785d7fc8559. 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/SID052300082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd34404df2416aa49ae9e9ee7c9fd24bdb1e61861d37ce34c16988c3eb40cd37. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/SID052400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x206f998d9ccb9b3a5fab7778de3ce731223ddeb3982c3cba18dee769d4f923af. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZHNB2432910.
Samo ti (V živo z dvorišča, Grad Bogenšperk)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee5dc128df80815113e79fe6415ca0649a63112648d751c51fe3ccae7c90a52. 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/FR59R2596295.
Moja prva puberteta - v živo iz gradu Fala (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5f4861de60232bf744570c29374dc942c7a3c097eb6d5a41be45ccd19d32b3e. 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/FRX872579584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e0f89b94f10bff45bc20f1206cff2d71ce2ebd28f33b96030e396118d8d71b7. 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/FRX872579585.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3180a48d793444410da7026795183efdd71d74b56d6338b22926b978c3927477. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T15:07:00Z), 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/FRX872579586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab42d1f0db3e2b07c594143bda6e51c56d404cb941f7cd0be2f71cde6c7f2378. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FRX872579587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x556b474a43696b7ff02dc0a6bb41dd03ba8fa992e93f661d446b325195db4725. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/FRX872579588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c08f0f43e1137182ae1bf64b6ad27dcb4a580831a4cbce1c0fed9c281fed86b. 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/FRX872579589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ee62d0549a49ed2cade0ca73f83508a303c9d9cecbaade46ace54c4f23cfc25. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/FRX872579590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd77620bcd9f1da754376d4528b2eb4c1e165ede9f25e264984740cffd779109. 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/FRX872579591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afedac430b715f9d30f0d19ab63fdc242527a4999b2344d1525ac434ff9dbf7. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/FRX872579592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfde5f3af722778ddba7e541f2d77641b203ed75713e6c6b09d6eb6405316105c. 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/FRX872579593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009e6f15d9e7386afbfdcd475fd34bbd2df06bace8bec8d572e82e6ea8bc0540. 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/FRX872579594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e55f0ef9905aae32506252130ab606914fe695cb06b99b66630458e9704b15e. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T04:29:18Z), 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/FRX872579595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1075206ba6d799def409c7c5bb7019336fb67916d70679849c79394352c66d5f. 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/DGA062514170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91dc0702026fc75b9f269e9dabcd17217d25a924a7bf7f2a3c06afc0ea6a89a0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DGA062514174.