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 0x364fd713c63c0d35f1fa8e952b662be7a15e605c2dbe64e8d77fb75ca1f6642c. 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/697d90f3-bad2-4fa8-95df-ee9b952a4481.json and https://artists.proofprofile.net/proofs/artist/697d90f3-bad2-4fa8-95df-ee9b952a4481.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 0xcdbf2edb4affcadc5e63dc2dfd3810a979b2e0436ff0f13e3535fd6ab8590378. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/PLE781300266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c70cbbc526ebd3d000f0aebad60b819cb67c11b837ce5fd2b967c6549ac4ae. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLE781300267.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2354d5d55320c9b42f3a484295ce4463674ba78c1f0f09afc5615a3d4360f6. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/PLE781300272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39efeaa1c5cca7aaa772b58b4419a72346bbce91fc28b29fe51cd16b1af9d9f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/PLE781300275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d7b108a90adb7e27f660d16c619d8a42049fe21e0f5bb4ba34586cbaff2688e. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:57:12Z), 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/PLE781300276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb2eafedd13870c375edd96a637016e585474bd3bbe80cdf7b8f9708df42a56. 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/PLE781300277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x615ac5949fb6a8bba51a17d1b6be275d49bf5d4d39e010643483cb9a8f1225af. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/PLE781300279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe549437f4b20adcaa4e5fb300afc459083458751f269a4ad8241ab188e03b05f. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:08:37Z), 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/PLE781300280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e65f2be6b7654ab4d85439c101d9be67b36bec5239fd9ff7a1a6e4a313ee56b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:54:08Z), 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/PLE781300281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aaa66734091aba7815a10163c6c8d1e6e9c334edd6ad0044289a83860c9ed50. Chain 2 (Bitcoin): anchored in block 958734 (2026-07-19T12:54:58Z), 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/PLE781300282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8321bea9f099a35b26cd847cf27e86492bc56ff0892ce2515e06616c317d1d2c. 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/PLE781300283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdabbf983d1fce4400964b870f07c2cdc3af591b199a8ac43a9c2e48052d96925. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/PLE781300284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cb94edf799f37f0d5455189a5ac741baf709c48cb73d6783943257225158cbc. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/PLE781300285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x380e14bc29e74e2869927d3d3b5db150a566c0ec412572cbac558f4254f6a4f2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLA290300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe78ffc798c8850d2aa94b46d36ff493335f4d8ca2a5516be7e5354baee461046. 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/PLA290300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7424c536728967d473dac55ca322f562f8e88a4233f35a44dc82c1b3a99dc86e. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PLA290300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930873caa2b727d1719843def65694f7a2bb1683a5ffc4b54167657748533f94. 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/PLA290300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x099743cfa2b3d5cb5103e5f6bd262ad9285100ac9995bf0316b9e7c6e79d29dd. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/PLA290300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4ac891bb449fedb65cd04be54cc7b80dcb368fb7ebf213cd4a6493b6dbb9533. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/PLA290300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd2ebea49df4946c1ef91fdde249d2c0854be75697ffc7cbf35ee3c582f3b4f. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PLA290300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dccdc92f3b483a39f1faf69c8ae758f21d5b767de095ecdc9e160e50777c95. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PLA290300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x267e4c3a0553cfc9e0bbe9ac57063f59e3f407d9c3237b0bdbdee8ea7995abfd. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PLE781300252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50b2e00a045ad8a1b9e814e9b3180b5c2c78bd6d300a12e195cbc9b8645b740. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:03:07Z), 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/PLE781300254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19e43321d6450d9d659b1ac9d22d0c37875da5a0142fca1751a5bee1109099e5. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:49:34Z), 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/PLE781300255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56f9be2025f0a3bb31f0cd2f974c431c6b692c5f75fcf5ff1c30e63afa554ce1. 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/PLE781300256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b344df3d4e123e8c474adaf9d4876df509faa5f72cb10464a2a64581102695. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLE781300257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d68455e20223300f39bce1327e2f6d5c42a34622fe138faa85ccdf1df6eb842. 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/PLE781300258.
Jak bardzo możesz zmienić się, by sprzedawać swą muzykę
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29da1cf7040cc5d45ae018c8642057c8d3e7008a4e94cd906740ac3204df9ba. Chain 2 (Bitcoin): anchored in block 957884 (2026-07-13T16:55:06Z), 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/PLE781300259.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0eab7e2b080267d149032f4f50d983c4075620910bf461af6993e1ce7b06b2a2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PLE781300260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d0098ea61ff2bb744c50553a3438e81fd0f77e59eeba1d516d6dcbe144a1cc9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PLE781300261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e4a1b1869e8ac36821d81a5140580b8f57be7c69c289f3fd979f82efafe45f. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PLE781300262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b5a3e16dc2d19dc6b2b76d753238d0513f8827afd3704006ff930458b59bcd. 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/PLE781300264.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fe0e2b3db14e96e99e4518d9312c82b03cf5dd7bc8c4f7d25bf2e1f746632de. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/PLE781300265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5703563a8811fba395d053ed2e75cdd29b02c1d348ce1bde4c61871de3abfd6d. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/PLE781300235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39238ab84cabba7d22ed903b38fad06ea7162a90341b7552008ed0d9492cf8a2. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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/PLE781300236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa00d46a4c257995db847efb42d4eb8de76e9e1bae9e48950a28df0d2b554d530. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/PLE781300237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa70df7b0f2a889bf8a8817175a086e04c84412173e2c924f33aa14f38ec644e2. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/PLE781300238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa5d76a306b0d4f7855f33be6bb0cdf35fe55482d9ca1435715f6afb80fd6f96. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/PLE781300240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1595434be9a93ef7a5a4a5efeea3860901dfb755ce3d43f259715a4f5056419f. 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/PLE781300241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ecd8df52efb2748600bb8a3c88037836195e6ea82982cdd47f32888036905c7. 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/PLE781300242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c72184fc1d4033b773ae168e929bb8783981640bf4ba240284a4b3959359a39. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLE781300243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65852172a64c9ef029efa1722e64fb63a307a74a56b003e3b3f022c89e2d6833. 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/PLE781300244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a779529ce7110b3ea20b134dc9ffe0f63cd64bca6f056c763045d2602006a1. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/PLE781300245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c7b13ee9888fb32c1f0f9407376b21ecfd5b9efe54dbf74809e9e3c1fafc685. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T07:04:48Z), 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/PLE781300246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bda8e1fd52ec6e1d15433551a74d5d1ef22e14b9da1e509f8cdd747aa30b2d7. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/PLE781400981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bc74f558f58924d4e6cc216a0abe322d4f66061b4aaa41879389b08f69e64e4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PLE781400984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178ff7414e70d970288a44d527266efd8cdb3c57b6fd52a37322be1e6b3f7c33. 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/PLE781400985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x193405d38b01511a3c1a4d42b89def5408e37eb544f309205604ee44ccf04bf5. 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/PLE781300321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f7bb731ad119b99e7a44b84ee4b674bae16348241588f24643030d82290a16. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/PLE781300854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83ccebac6875d2b3431f3670f1f94eeeade842e3eee7f7871b56b29686072edf. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/PLE781300856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d70c30a7f9f47c64dfa4881776ea060eda530af0b6d239a8cb6823a780655a. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/PLE781300857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34f71cd374e5026150ca708b01c450349957f86692439567c1011c48dbb7a86a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/PLE781300858.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5367fa19867d92c81ed6a7244d2e02d3a6859d08af2d959fc1bfe7c58ef12c. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:58Z), 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/PLE781300859.
Kazik Staszewski Piosenki Toma Waitsa (single)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf114ebaa02901e8c3531c7f919a5eacbb541461207d8a28265bde6178b6c280e. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/PLE781800019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ffb00edacceb42d926fec336310c14e49bdec68c9a9452eafdfb622f56cfa4. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/PLE782000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1f8170c6a408ac64100ea0c2ab3828138415708126d757c0441332c554935ab. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/PLE782000146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x050c35965ec0b7598df5077bdc623b439c9f5fb41784c13513a4eccb4335dd90. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/PLE782000147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ba8a7326f247a5d9b1d9b4ff5a1613b47e6a240af918ccb8e6b2c1822fcbeed. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/PLE782000148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5251f31ba885746d3cb721cf80905942e9f83ef962d128324c728b1933fb479a. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/PLE782000149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9af40c27828b93b11ec9b93053137d3cf12accb413dce837aea05ec5d0c0d820. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/PLE782000150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712867f958c5b9ab111eb4cdd7ddc84cb8703004a89aa403ca587d13a6c9f604. 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/PLE782000151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe9eaca0f6d3f0c21033b83fcaa5ebe6c61870c41d6f6c49a65c6a623a29cf2c. 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/PLE782000152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61ee89fab493d9fc20ecf3dba696b648be93eea968d3536cac3d4cdfe3513969. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLE782000153.
Przegląd Piosenki Aktorskiej we Wrocławiu
Kronika 20. Przeglądu Piosenki Aktorskiej (Live)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ea01f2615ded08ea9439e4a93e13dc890053e652025ee68cb2d0a8600db36c2. 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/PLA292400166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fb46a809a57b84dd36b29ed09d51e02f53a0778be9e6fc2b37120fc1971a8d0. 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/PLA391820401.
Roman Kołakowski Zaśpiewany (Dobre Piosenki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8351c07b1d03ef8fcfc4e95ef3938eacf7b5f5b8128f0a4ebad1e4a8e915df70. 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/PLB171600567.
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