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 0x5f9f75d495094fffd3245ebece6665b42712b1637b09852ff942b9ad6c883000. 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/73fd5842-0eb2-4835-949b-ddefb4d43d12.json and https://artists.proofprofile.net/proofs/artist/73fd5842-0eb2-4835-949b-ddefb4d43d12.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 0xea07635039ccf3b95309622274499631c0bff9803001ad50d3b41e7333ada3b5. 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/ATB159600023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e08cabe227185273cfeeacb8adb94777d1251ec55e9b34c381186105f0cbd51. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:38:39Z), 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/ATB158500040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4694b1f00bd0f609d712b2d9671da1106cbd0bb7462ddf45fdade1050a9bb1c. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T22:02:02Z), 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/ATB159800187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf88db4c456ff094af46717c28e0bd61165342f1b1ea97d75a761f276720acb7c. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/ATB159800188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbfd6f61a5af4ad301a17d376e5f1397b605a01dd31b92ea9f238a407716bb5c. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/ATB159500115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa7daa884b1967a8097238f739fd83e7eab09a5d31b748bab514cd1f5b658f2f. 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/ATB159400060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0949960d7634709054dd4bcffede75b7d668b39ed0825ef020c8f69da694ab8. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ATB150400040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed933aa7edbbb49ed6f863dbe4419d1124fff1df624158d09a7a5d1cf612ca65. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/ATB150100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aef77ab848fa893215076ba7ada5bd49168d942572e2ff3a052fe44e9b816f3. 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/ATB150000082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9342ff139576b8c8d32a01aeee1a387f2f891e43548984a316374c849af8588. 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/ATB150000091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6278da6fa3943cc07f57a5e744dd5c1cd26cd584dbd6c20dfb69548749b25748. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ATB150000097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d99fcfdc9f3fc4ea64508e56920f04d8a77552eeebaa9f70087919c2b140edd. 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/DEUM70601141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59da68d5f088663e74996a3446feedd03b41d01da1083162f2390874e405dabc. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/DEUM70601149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf62b9bc5ca6c8f47984e61d3a4976a38cbfaf401475ab078491fe3d87638465. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:05:59Z), 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/DEUM70702117.
Die Stoakogler / Mir san koane Scheich (…wir leben im Stoani-Reich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a580e51549d53551a4dc6719e3908cc3e3fcda974ed423412325159c509f33a. 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/DEUM70901375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa53b68c7007a77893d91ce044072425c75735f252258844fcaaace6931a7557b. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/DEUM70901379.
Bier Um Bier, Bis Hell Is (Living Next Door To Alice)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea63244cf11a7792a3c2ebc89fef40a217515a2166a4950dcc1afc13246b78b4. 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/DEUM70702127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9211f01e80b7578214e595c1bc77f5c8e77f76b555506a0d302890e4d246859f. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T09:32:55Z), 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/DEUM71100536.
Mir san koane Scheich (...wir leben im Stoani-Reich)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9071cbb7f06eedb50d62fc6e0bec60c9e77152682d20abc123d90faec5232ac4. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T10:49:43Z), 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/DEUM70901380.
A Musi zum Gernhab'n - traditionelle Volksmusik
I dank dem Herrgott, dass i a Steirer bin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72cf78a125968007d7301b68659c73055bf4170dc12ddd4fca4b7de7a8a439a2. 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/DEUM71004484.
LIVE - Das sensationelle Abschiedskonzert
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x995d31b61ae0c9f408cf08909029321c749ce526bff6fb9edc958f02094e6917. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:32:44Z), 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/ATB159000016.
Im Dorf da spiel'n heut' die Steirer auf
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a238e221e92508f659b3a53414619c1eda469c1514a41bf57149d3617fceeb6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ATB159000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6278da6fa3943cc07f57a5e744dd5c1cd26cd584dbd6c20dfb69548749b25748. 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/ATB150000097.
Musik hilft immer - Ein Benefiz-Projekt von Hanneliese Kreissl-Wurth, Vol. 2
Ernst Hutter & Die Egerländer Musikanten
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31e927e09c15ce279b36b5c67f5829e4008e4053be07068c8510c92b453e005e. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/DEUM70806972.
Steirermen san very good - Neuaufnahme 2011
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681b74db4a75be357e7f855559e0bc5d61af752f8f644707e89b696faa1d9b40. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEUM71100549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78e023913cbf58aad9ae0b3ee161f9be265e287c1dcabd4971ef84b67e0dbbfa. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T08:04:05Z), 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/ATB159200017.
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