1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb0da0b41477387706353b5c1b8b3a90ad292577fdca9d0068dceaee5a5a3238f. 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/83b2bfc9-47ad-4e22-8539-7223786002c0.json and https://artists.proofprofile.net/proofs/artist/83b2bfc9-47ad-4e22-8539-7223786002c0.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 → block OTSBitcoinBlock must exist at that height 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 0x4fc11485921315872f53573cbae60d6f51e1f3cb327cb182f1c8ef5fd24f0c08. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:39:42Z), 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/PLUM70800210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d1843e6457ab1040d72cf4879f8e539c1e4b9b2f936b227cb0d5190f0fa86c. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81209423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d574b3f0012dab7266b9af620a9839e203a272aed8829c8a446de9b6a8a792e. 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/FR6V81209425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b21a17c3daecb5a52973285eae4eec7c0b4b9bfada99f065e715d4a82298681. Chain 2 (Bitcoin): anchored in block 958319 (2026-07-16T22:23:31Z), 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/FR6V81209428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x402fafee00a7f6d1243e75113203321ccda79eae2a6767866ba6f00293979dcb. 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/FR6V81209431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcca8c2c0112a3c6e398cf542206dca538e886ae5283687d172bf136273a87279. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:26:45Z), 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/FR6V81209432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb32f6b8a0cfc69d887cd8aad5917b8a9ba5b28c4fba905029fcb74f549ec1a59. 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/PLI368272950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56834226f2523721fc45ff3cb80c7ee1168e72819212cbec71e8c552b60ab60a. 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/PLI368272960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x907292db8b4a5e1372c61c231689392ee0156e92b5eaf6b7bba418d512ac15cb. 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/PLI368273010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a726506f39aeaf9269ae3826f7ccaa338d5094fdbad90c17d747011c870a511. 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/PLI368273020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37003b8b48e55a53bafae23cd4e989bd0a5aea60be334f19af49067e46771d53. 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/PLH181300166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b5f175168cb6b01fb57f3a4e32dd3b3ff6f88e0b181006f612a7086e664a6f1. 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/PLH181300167.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7fc2c03340e7bb06a346fc47130d2780357661aef825028252d758c6636debe. 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/PLH181300168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93c07eaca07507be7690e653fc1167e526085f0cb937503ef0b158ca89696a19. 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/PLH181300169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96086e26db5443300ded8d08098d50e8448a520a3526f12c731fdd6ffaea95ef. 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/PLH181300170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73c325ad51366a49ce421d7a604a91a9e20a0bcefa0adf3f8388bf55d9543955. 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/PLH181300172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b43bcbb5a372e3c33725b85e8173e6e4267bf2c893700f55da2f17eb7f37095. 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/PLH181300173.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85ee8b9fc9cacc36a7f3aae09a552b7e810a5341ab84cb4b1faa61ebeb8f859. 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/PLH181300176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff42872ca3fdf5821d2ec866290429232583f40bffce4da52f6fdebd55e018be. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLG251600135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ac56ed0577f57edd7b466018cb4b4a67ddedce2c1507dc25da194f4a55c72d9. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLG251600136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628e175fa903ba0a8f3437624e5d9066d7a15dd47e78bf6407668186ee17ed8e. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/PLG251700459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2801251bf4f1ad8a732315c4281ad4827f6adf59cbacdb68b8c5f0c7faa3389d. 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/PLG251700462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99f9e541dc85547ce92c6d721053aa709b5e0815449a0db0deabcdb630706dbf. 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/PLI363745530.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07231a7aaa3cb3a6ea4c2d25231263e9a74e43171a0b451f855dacb1d0f72d77. 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/PLI364998560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2d171969d29457019a7f91e4ac41055dcf328ccdba5071f08c7b9a92685715. 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/PLI362306050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82012f8a8b25c2bb3ca87b38dd168abd568331968d221ab8c55f63ca39c33196. 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/PLI362306080.
Niepisany Kodeks feat. Mesajah, Tallib & Sztoss
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf13b58ab7f932703aff40a7df32f1aa4fd6778e641c0e9850fe62a293dbf57fc. 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/PLK561400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8463e4f359f66b6ade35442703d7ed59363181dcc2f26362be88666db4d5f5f8. 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/PLA551400082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea86f9e667f013c544c3cb7fc4b715c17e3481fb36b517baf53d359dabe765d7. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLA551400636.