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 0x10c3aa3d5840b90ae43d3cccf7ee9bd456421b8d9d7f646d34c3cc559932b454. Chain 2 (Bitcoin): anchored in block 954013 (2026-06-16T22:27:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/345570b9-3ef8-47fe-a413-86d99136e263.json and https://artists.proofprofile.net/proofs/artist/345570b9-3ef8-47fe-a413-86d99136e263.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 0xba2700c2cbe3bc9ca0f5061c4758d4275245e81ac6444870814552b30b02e4b3. 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/HUA611802829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bc0eff96ce5b2b5749289051c1b38a5e8598bd4fc060329eafae42c54e5b8ec. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA611802842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b6e2799a485dff86c44c5ec227c40ad31916d6233dabf49685c39b78c31a264. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA611802843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcec0090616ba8b0c9e035c37f6559943178de00c5d745c165cd47b4656f230d8. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/HUA611802831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d3f28dc9b0a2cf600f1146a645d7a954f1f81fb8cbfc2bd8f3653696e0ea7fa. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA611802835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96a45262ef0a8e2396812c40596029456ed5ff271d0c3fb3afb01e89a50069a7. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA611802849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92448f7e1c670e94dbb1572b36b4b1fd7edf41b520959fa427d158ae6f70794. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/HUA611802836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa167ed997f70514c4cfd1ea2bf53be3f63a4efa6f05707a3fffb165d11e1de6c. 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/HUA611802837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcff13c76b54fae06ff60d94182f28ba23fea61340b914fc1328f47d13138a89. 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/HUA611802838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e53af1481aad6ff63c95b6f13627d4e2eff855d3634d57161b7c0ea2dc1dcdf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/HUA611802839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65704c25dd6e1d70df1d1f0cc5b391cee703822fec524e4a3db32a5f29d73961. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/HUA611802847.
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 0xb4dde6de47ac5379cb6fbaa9cd798e0700a8226cb79dd7b9602605ddb3488681. 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/FR10S1811956.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617c5aa7ab20b2e7825839789d4e5f20808724e78cb72a8bcc780c425fd44bf6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S1811957.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf2269ddf3394776718e4f41652ab8622d10d67c58cd4a8de8e0780489def687. 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/FR10S1811961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fa770e3153aabd21378fe043914a39225789a40f6face1314a8abddac847e6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S1811963.
Államosítani Kéne (Anima Sound System Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30881b6148f020c6594218ebc5c5393aa83b7e39a95287881ab8f44158bcd00b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FR10S1811968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3712580d9a0e59191320bf3fa3c4c5781ea67270913400de01e4d840711f545. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FR10S1811953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a3899813c9a2eb75f3c9a844da99d8f44056d194b1c1ee3bff0695b30ca46c7. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/FR10S1811954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54c613d08f7041fa1efd63ecde453b42d5480338e62d84d9904a27353c0e2223. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR10S1811955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62ab1e653602db24bd37c9e03d53aa977db9522e808dc5fed4db678f3b840d1e. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/FR10S1811958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c15af3aec929a98309f39ec7ef30fdfcbc1be7b62a4c1c0594751592f19fde3. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/FR10S1811966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4292c995f069a7b9dc8e2adedb51868c1597cdc16baa19d096ba7128d1d0e16. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/FR10S1811967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1a75a26a8ef67130052668acc8c22577a6c470bd9ab2dd7d5c648413667c6c. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FR10S1811970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3ae7b09a7fe30c7d04b26da28c41e89d8d17f56e1c27064936956ad3d24218. Chain 2 (Bitcoin): anchored in block 957046 (2026-07-07T14:04:01Z), 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/QZFZ62553391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf92dfb1088877df4c4395020cce418aa73328a6f7a2a1d8665b97d64baf8e93. 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/QZFZ62553397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e415fd8af8db18db9a7906256897240e40276b0e480b578e3d45423246a04d3. 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/QZFZ62553398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0424eefe377019a196be2e17ef5e000452f61fc5fe97632f734a76b004a20f91. 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/QZFZ62553390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79551eed268839cb0a6fffcb4aa18a24c977c311e7509c6edc3fcdfc9f1c4b19. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/QZFZ62553392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6543409bf6e0621a00604cc5453c28db41206a21d0a62326bf5040fae19997f8. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QZFZ62553393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0d240862445246e0477cefaca8dea8247998d00b8b2eb83ca60fd6a8259a608. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/QZFZ62553394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7e83714db67685fee4c26b42c3e7696458d33e0bb58b37638b1dc596e2d7432. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/QZFZ62553395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9681fede8b639374f5c702bf99f029f5ab0665ab4e53ede5ee3acfba69887641. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZFZ62553396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac77337e7697469f4977261bb088dbae8e734476e88600f3140ade6e42b519c. Chain 2 (Bitcoin): anchored in block 960330 (2026-07-31T00:58:21Z), 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/QZFZ62553399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65a78eb84a7c905aea41de7ff405e0ee1139ffa9cb4ce5f282d8f0e83429fa23. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/QZFZ62553400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed700174cefc44aaac5378483d9a72bf1af8d71d6995c111c924cfa022220cc3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/QZWFH2307748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbb91aaa10904a43be023ded106d948ced83bc3018750703bc70ee18e38a8e98. 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/QZWFH2307750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc1491b63150bbbaaa26255a7acc255bbdd19909e51aaf18520abd2a2e485242. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QZWFH2307755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb593c61d2c19bd6cc994e2038f9bda648bdbcb90cb3ab0fcaca94816752af591. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/QZWFH2307749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84b5129780675fac1d1e0dfbd0b1ac524be4c7d348c36aa8184162c02e1ea06b. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZWFH2307751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f6fbfdaec8b2c384a17408e58d6843b2626ac9eeb219ec3b8dc6d15e791333. 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/QZWFH2307752.
Elmehecca (Elme-hecc-tea) [Short version]
Sziámi AndFriends és az Óbudai Danubia Zenekar @Müpa2022 Vol I (Szimfonikus változat)