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 0x96038e22d0e722dd713ed35f398bc7bbcb854ca633149a946b94756204b8bcc7. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42752527-751f-4cea-aebe-caa8b0255106.json and https://artists.proofprofile.net/proofs/artist/42752527-751f-4cea-aebe-caa8b0255106.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 0x1c0268b94958febd0bc1856c8cea5916a9d097c68df9c944ce1d4e1838069c9b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/RUB422300124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43c53352051c0e4b5adff4075c1a068849e57a96d2cf8ad414c7e676d22dbe99. 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/FRX202278737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb11ab3144f00121eda2344627807022705ef456f16c49ad6e18b706e6345c55b. 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/FRX202278741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74599bbbd5bb36841f1db57133e7755568d4cda13c0626f22cd9e739aa546f1c. 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/RUAGT2441824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3ae1780c4be52f93fade786d8a1dec9a856c67c8f9e099f469903f39d0b5f9. 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/RUB422402690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19854a9a72bdb45ef7c32fbe924ad246f3fd0c2d4b957ed4bd193cf388ba0215. 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/RUB422402366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4a8caa9c0079f960871417e5b241cda2a1fa3b314353b25dc56f372124e3e3. 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/RUB422401524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x559f2b354918d814bd56ef704fb24da3d18c6ea0c184799980511d82ea4b57ae. 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/RUB422401038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb97089951474e0dc757cce33cf7345bfd0ff0c15b44c5374e6a9bfb4392f7984. 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/RUB422302879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85324e3b7607d181943b18d4aabc92c56841aac21c7eb2aef16e189ef9dedce5. 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/RUB422301372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61648f3980ad8471c1307229029914d4d77f7994921b8e26fe2e7c0f0f58e96d. 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/RUB422104394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0638387f1f240dc46d63c0e155f82e46d8cba5efcdd8a34c7f124768d2bec04c. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/RUB422101629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd39e2dd6a83b1b93ffa04ccae1edf03111e1e45eaa4b5d0b515d3f65717c2f1e. 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/RUB422100971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef623d9bd20c1ccbee813cff5cb3e362d7d3b1444735023c690cfb4e806a38bb. 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/RUB422100778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71b209a7eb53e06d7b91d58fc96057bb6b64e58947ceee8bbb87713c5c4de2fd. 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/RUB422100260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd45e3fc0b9deafef28dd6da0f67202d95398a918439e8204c1a319cc96cafcf. 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/RUB422002627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbaa077fd528ebe2dab643e2ac1cdd75797aa9ae123dc05ba7e872e428785651. 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/RUB422001716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e01d2f8f345b1478c32b54bc5953b4cc64708b1bec74a8ffa86df71bf12694f. 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/RUB422001538.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a53c9a6a4d38f4849ece8c2884613aa2b8a1fb2910d46bce6441ead2edeec9f. 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/RUA1D2259836.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e7697a32ca6051896bc6c7aa5f4bdbb658e1337a50a81ade6d4d1f1bee4c68. 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/RUA1D2271737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a737387f1ae172e9b06443560c16a0d042893d6adf98bd7748a4a3e728fb211. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/RUA1D2271741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631657538dd85543267851ce24f82941bbbf9ecf63ae9851b5de7dc9b08439b8. 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/RUA1D2271743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e7a7d26e7d5e62f00ce0252c2c07ef012b016464faad719389cabf9df28136. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUA1D2271749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x400e534e9cf5e77c97ddf88b8ede40e4a0f76aabff73a493953874571617ed7a. 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/FRX452164092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451d78765d78d44198d1284fd675802b3e446fe6d73f0c6fca5fae20cb343627. 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/FRX452164095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x403fa4bb63022bcbac7c74413f1a4deb4313e6619aa1bd70b325d6980a68c47b. 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/FRX452164097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4f46b19e797f1a78089f673e69ab782abb2c7427391a2ac0f399177c81827b. 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/FRX452164102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffa006221b1794c98e59010cf510591770f68aeee47ad56e58e6b0df79fc7d86. 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/FRX452164103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56bddd48f69bf8a44c44b232cf99352344b3be9c0c32e03a9cf1f02538f57ed1. 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/FRX452164104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67df0f4f21888024c4b7993b0de9e2c7cd7a1ffe59f81f3a1f13910a531a37d1. Chain 2 (Bitcoin): anchored in block 957084 (2026-07-07T20:41:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA052271423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9fbaf366530eebe8d9585c3cb008e3827d7ff495dedd586e59c571de908a5a7. 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/DGA052271427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x355c14e70e2bd2009ad64d0075c414542d058fe443e01a7586dd95b2f94142d9. 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/DGA052271430.