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 0x91eb06f8ab3247a99625527ca9614f084e6a7d51c979f4b1f32423357080706b. 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/b6668f7c-060c-4c90-8746-80755ff2145e.json and https://artists.proofprofile.net/proofs/artist/b6668f7c-060c-4c90-8746-80755ff2145e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Lesz, lesz, lesz (A 12 legszebb magyar irredenta dal)
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 0xff3ef15332ea544a54511ad6f136533718e11072eace415c0d106358dfe8f443. 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/HUCE82200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38351f936169f8f5031c34ffe763b7aacec447c7eed29cea31535bbea987600b. 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/HUCE82200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8380c7508e0315f28c161b299528bb5dea2545b1e59199230646dc7b7cbe8260. Chain 2 (Bitcoin): anchored in block 957025 (2026-07-07T10:59:31Z), 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/HUCE82200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c35cc9737bea074506a24e6e88550bf0602ced5f49fa6dd26fe5593152c201. 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/HUCE82200007.
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 0x8533a9a9f8a81ccbc2b61cae46306b27b1fa2e9ca4049f4614a975f62b63ee9a. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HUMAG1900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a31efc28c3933c67a43f5b65cc5a2b14c0b436a423ac838169aec8d8ab2f80c. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/HUMAG1900030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0509c916d11ecd6c965ddff3c7e83360de5254efb7004f729e1a24e428112cb. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/HUMAG1900040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad6f58fba329f1da612bec0025d7b92086f99d684bc65deefc1b5f4da291b21. 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/HUMAG2010037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0be3f340459e33c121718c50a5c4335f1d62bd2b62db6f41f2e027122d05a46. 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/HUMAG2010205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x625d2c0675a3ba5cef4b7de4dab0292575309a1d3584f624d34d655bad841aff. 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/HUMAG2010211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98eb0adc010d06ae97b5bfd9045d555dec425a945e9dec09347839bffd2f9d7c. 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/HUMAG2010213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x195202862a65e26c8727a7db34fd0132bc7993abad97a1e3c562a43dfc7c64cd. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/HUMAG2010203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853370d2e3b41f2924e1e6e3e3160a160cf4dfbc662d2a3318c0c0b95bac293d. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), 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/HUMAG2010204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12eb532f3e5c8be3f31e897df9ffeb46292e1defc52e6e34154ab232335dfb59. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/HUMAG2010206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2d1441c2509f0628cf2da74f9a2d454c8cdc6af9728dc04b591fe9d2bf1a1e7. 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/HUMAG2010209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7df1ec715ba8403b0dad67ac9a61f56083e6a5ad5ede1776195967f37ce6acb. 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/HUMAG2300332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e3c71b4b2573a376a116f5e41b6672c05be8e6144641aab221f09e512e29d32. 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/QZHNC2373402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x323d2d75fcf6293f90eba79538b9d3d358fc5fe03825a46fe67181b74477a93f. 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/HUMAG2100270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcceefce91e14e8837df794b848664806574cc69c208e140dafb782fc83b3a242. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QZNWU2144932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f8200b4c7dc507c381da005ed62f9bb7ae74f8825846d3cf05b4c1256430e68. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QZK6Q2187454.
Elvonulás (Az utolsó szabad ember végjátéka)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc92ea101e886d2bced1a619e36cbee68d822841658bdbdbcb071bb612294687b. 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/HUMAG1900145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb29377cbadda851ef0db9ce7742afa0dbffc6b5107f941177f7b5c9d306525e5. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:25:58Z), 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/HUMAG1700351.
Best of Karaoke 2. - Modern slágerek (Eredeti alapok)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a181c9e2deb0c38630f6606afef078250593aa568f6252826b606446645ed7f. 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/HUMAG1700024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60c56da0e9b9d88c427f63b09b9cecd89a726c3be737ef0bce6c659884e964a5. 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/HUMAG1700031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b252e5ba8bcf73d8755f090b02e6e1bfbbbb1778d26f9fc0de1c103ae73233d. 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/HUMAG1700038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0da6f322416b8760edd23145de9f4ee6fc841c79b4c04045311b097b52ba7146. 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/HUMAG1700043.
Bárány-nyitány - Bárány és a Baripop dala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf768cc9a902353575c1bcf8cf8ca3975fa1410589f72690b4d95ee67ac234b. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:26:43Z), 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/HUMAG1800262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b980fa0a0470a4e3f8fec39eb0073ff4bc6c40964a7685597a1e59c3ec6cd56. 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/HUMAG1800264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb16bc06bbc18dafecd27273081edcda8b4a586b28a36ed81d1abfdd04c9598. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/HUMAG1800265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5d0e33a597323fd66e5cd707ae3b831aa47cc1b8c1eef211a91c13ac174cd20. 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/HUMAG1800267.
Álomkészítők - Vigyor, Idill és Rém dala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffb6743c751394d45c9e378a2cbec9571a5cd0e6e8f76b6b1d479afd171bdb46. 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/HUMAG1800268.
Bárányfitnesz - Bárány és a Baripop dala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4d12c04cdc9c5d14e422e70c554d03b3aed58b5c59842b42caa30a86a0cf1be. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:04:23Z), 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/HUMAG1800273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee1c6accaf4db66458f1fceabf27cd7537afb58f68a17f5f476068054d0f7ec. 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/HUMAG1800233.
Agyturbó - Reklám Marcsi és Reklám Marci dala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1773c533c25ef469497797bcc60fde98c2cd8d13c159843ec9f5695d960095. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/HUMAG1800263.
Szintidrazsé - Reklám Marcsi és Reklám Marci dala
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf931162d5dd42ec6a5e875424646a964d90193d119b4a7f9dfa7c9f7d246d5ea. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/HUMAG1800270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef77ba9f836b67b9327c6870aad702d7a04b2f0f2ac48cc110f03694c8b6fda. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/HUMAG1800278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ac8eb6a3f1f82e6fe2c6243746b457733f0522d8d5d19bfe28d52f55dccd3cc. 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/HUA182011401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc412e24a2f8ce3a6f7a46c47cb75d6ab874cbd15b9a18d7ce3c90daab153958e. 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/HUMAG2013309.