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 0x728eb589b8be57470d36fe25863b67c5949e2a7a551790c3b88b51cc128b3b70. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a00eef60-de95-4a27-bea4-766da35686b9.json and https://artists.proofprofile.net/proofs/artist/a00eef60-de95-4a27-bea4-766da35686b9.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 0xe3adb11b53956f20d508bf517f888074c466704923a1df8279743bcac67a5cf2. 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/GBKQU1303358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee1ea4e663ee3d25843e652cbeeaa5dc7b55ef96b758cf8d47f9e61b1847ec8. 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/GBSJN1300755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96ad65bf4cc20ec25597df34601666fdd61f9e503148a0afc42f16c3d0692476. 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/GB5KW2105165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac695395553c49e813ef802f73f37e76f5301efbaa86f9484bbf972cb227a435. 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/GB5KW2205639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb271707cb416398048c89fc51abc9fda2d1faeae434b9f867bdb7530f26711e0. 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/GB5KW1904321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb071775e83f52b442ea4fa62de4200da9cb023f22313165cda221c49a5d65321. 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/GB5KW1904359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ace87f70932f02b30dd6f466aefd7e05634292c850e2634589efd92b6d1a422. 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/GB5KW2104219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0faa7af2beea16ebaf5ff76e9327f5f9b34bf353c1d59f89d7bda41b6b42d819. 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/GBZA42100284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54926d8d2e7f7fa7f0ec23ba8c4f614b04cddd2bdb3b376ee9d878d04a9ab54e. 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/GB5KW2103994.
Last Jungle - Camo & Krooked & Mefjus Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ffe6bc4161bccae3bdeb0b168d8029d09e89c5d87ceb5724f551e38c6c8b157. 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/GB5KW2102872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19fde43880fea97d0f268dbbcc45d0d834d742dd9f3e468b09c6640819886fc4. 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/GB5KW2100964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x951fd08a113f9c602e2bb752dc0114bf405802833397aac5bba3c4f1e6b6825a. 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/GB5KW2102262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1652bd1e17bc18b5af96f2329d90baad9d98670b5f97a707cea0110db04c53b6. 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/GB5KW2102052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ff1f986b869a25e1f828b5d04bd53bb66b8bc63a411b08dd3157ca4c5b6f22b. 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/GB5KW2105096.
Yamatai Presents: Legends Vol. 1 - Kintaro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61194542be9bfc0d1cd226df27f4b9594ed15c11699b85c9680a54e7e8ed5232. 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/GB8KE2427236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7125ac9ef64e9a40bc4f1a2887bf8961b7dae8ffb908fb1ac3449a7ef460905. 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/GBCJY2400613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9abfc8f423860b5fb254c2032512b544f6703b4e02d1190d2bec7b9cb987c2d. 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/GB8KE2418910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f7b08627c0e2fea03cb1ae86e552d37a5c78a03f70d149ed4746306f4e720b6. 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/DGA062429017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x090eecec46119090240cc3fb87b5c6ebaa3835de647f541cd7f02dd4a52bb89a. 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/QM8DG2480597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x612596c1033ab97c711063ed7a141070d8c233cd1f973c65cda785f23cb4e727. 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/GB8KE2301034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24343eb1c5f4023829a2a805559fdcceb960809d8bd4cd5029240898269755f5. 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/GB8KE2301036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6287af859432bfb593966fe6978f505f8166c531e278281bd394f9a9792c902. 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/GBXJH1000199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ef92058e835a128bd5c9d74515ba266907011d3998e960a6d97342b5fdeaf2f. 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/GB5KW1704149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef5bae4d4dba998d64662b1d0fccbdf0db8a34f295cf2eee49e7c9f90f86a34f. 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/GB5KW1800753.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4c609f230ceff1683eee234d3275866e226ade24fb0a6e9625f7e2b2fee7285. 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/GB5KW1801285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83752a1c152c51157ef5034306f11484b7febcee8682d7fc319edc395166193. 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/GB5KW1802820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b1bbda93b3996cceae59a00deae33f42cd50b3bc1452f420094f97d3003af9. 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/GB5KW1803399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad35eb9ab7a6a643dece2a420868706c8ad10a616ba3e46b733dc2bbf2a72f02. 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/GB5KW1802051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b36246ca9e5b0eeeb079f90c8f5d8bb9618cff17fa4fd8f78b7676370b1553f. 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/GB5KW1803404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37333c71101def507ea8ec415423c04e8223c76eb47fbc00b8fa14bacaba1aa2. Chain 2 (Bitcoin): anchored in block 957043 (2026-07-07T13:52:39Z), 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/GBCJY2400611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7125ac9ef64e9a40bc4f1a2887bf8961b7dae8ffb908fb1ac3449a7ef460905. 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/GBCJY2400613.