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 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 0x001bb57e0926efb43e330eac87aa25ce9bf84f127895f849dff32dd2dc9ae5f5. 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/4a00a50f-f52a-4390-b145-a171d9fa0b25.json and https://artists.proofprofile.net/proofs/artist/4a00a50f-f52a-4390-b145-a171d9fa0b25.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 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 0x5df3dcd7737966e89380eb7bee71a50819d64eecbf6e51a18d7b780bffaa8b95. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/USX9P2380376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fab909237dde0796ed52decd86d5bb18548d51e3484b3538a45d4d80562f9f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USX9P2380377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb704e98ea0d73d81bf072d3bcb6ccd0fb7eb05ebee42fec60f66b4b3a729ceed. 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/USX9P2380378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6237615137c2d7948a6ed98c5a2fc65d47c79bcc39658e5705e8d52bd5e8f2ba. 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/USX9P2380379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262c1915f83f07d4563d7f3260e0c1c8ab8e049a2b95f1eb8ef9a86f11d8f53c. 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/USX9P2380380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5356cc7b617867ca8b9005fb2e21fdee52a9f3cd93a54ba4a456133235850ba3. 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/USX9P2380381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4cc68d40d965f757840cce135b16b05fa29365329e68dccfb318f86da44391. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/USX9P2380382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2181078ee1f96a77edf72ea6eb0865c57de69d26da0366de0892c3195c875880. 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/USX9P2380383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cd9acb90cd609296946cc3658cbffbe69ce14ebfd2a543bcde414ae872779e4. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USX9P2380384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d41b27c80ed39811cb8a1c443ca1aaf323da13a59b555c4a1844c8988eaa446. 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/USX9P2380385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2770056c321d51faefafbd5b11621e0a39bfda0fa4d3b1801f4a24f29d331a30. 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/USX9P2380386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b09b461e1eb3c4c759bd5e65c715f8af6f7f0fd653b96d7cb3d2ff42850d509. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/USX9P2380387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac3bb09c49ae35bc7a47863ccebf971ed59774ea2ceac1f6b373e417937be581. 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/USX9P2380388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd270dc5c650163afc7899d5d85bbb6e57e69eccc334d36d3077b6ffd5f68ea49. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM22293186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03f675311c238aae1514c1d5aba70bd7759b6d40a789f4be0e1ef5402bf8c38e. 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/USHM22293187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5204911316772af3950f69b2cfa2cde1971b7ab2ba24bdb1ebf07ad0169a25a0. 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/USHM22293188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd40ff505858eac95dc4706b21db3fffd3d631fa9eac226fc71e7d3f78adfa209. 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/USHM22293189.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b46b260067408d171674e96cc2fa94121fe7b88db58b626cc6cee6cbfc4a993. 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/USHM22293190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3c2bb6b2d1b94dc6cd87d33fb167a855ef7a08c7b7bd0cce05de54b18a0297. 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/USHM22293191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9953812d2ce3eb82883f308d7133592c08c5f329de6e8c2f8f5161c8789ecf39. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), 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/USHM22293192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc0b2898800e1338d2fe4acafde755f428347fe81674c5f5417acb3dc26f992. 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/USHM22293193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ef6442cf07d1c689f2aa863c283cf118cd972c4f615a31bf49dbb7b01cde79. 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/USHM22293194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81eb8b5eb5a3f8b43b9e43e3cad3f8f696572eb0213ba54b37819f2e12c1dec9. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/USHM22293195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ad797854b4594afc7f45756807b88dd5c4ab2cb493d33cacc1692cf0cceb718. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/USHM22293196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe37a4bb202f9caac33ef52e5ac851a3db7c8bd2cc815ea26a62c82e7eb7e4f17. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/USHM22293197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bc5a121828bb47779d62fe28d8cc4e3b862ed766c91f02b3a865d5d6aa28017. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USHM22293198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf2a99e4c736b1b68e2afa8d7d9130c559a9de2da3240e6a738f8e3b4132a786. 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/USHM22293199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f1241825a495ad9b7a7e6d0e270ad530bcbab68c5e4695e7d6af6fedfecc70f. 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/USHM22122215.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fe723af12a1fa940bd9980d84a170e45123cbd788641c3081f7aff09d8ae2c5. 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/USHM22122216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63a2560a984941c187a66624fb34e9c02bfc2d5f899a8822376396e009b188d0. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USHM22122217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a091ab9b660966adf9ceedcc0a3360817debb52b02a6518031f08d6fbff4250. 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/USHM22122218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4e4115b6b294a486226cc705f29c2ca0ed470649a90a7a8e5743a53e9119189. Chain 2 (Bitcoin): anchored in block 960108 (2026-07-29T13:09:35Z), 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/USHM22122219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d97b908829aeacf5885e368bb15d6d6f4a1cef3fd323c26566c558cc3c3b483. 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/USHM22122220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2deba1723e07199315298aa9a5b89b56e2e7ef691aba0c68f242a92906e900a. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/USHM22122221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9d79732f47fdd6ea61fe41b1710160b901aca4f339d60efcd5f2e13c6a7bd75. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/USHM22122222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e270a967bc43723baa38e2482874ae760b4755e912c0e2910f65aad1ffd5817. 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/USHM22122223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ddb56a14b7f14b034d6c1ac01ddf97b31c089f1b1ebdd46da68c418d633eeb7. 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/USHM22122224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0222549fd26eaaa80640e659c36364b3baf4a38c458e590626f47e6156af541. 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/USHM22122225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa154767927646f589a2721a22d6982e5bac13678a47325c7118c2291d8cfae4e. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USHM22122226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7a45b623983a90b2c7eeccc3b430497ec78f3c3a96cf8ddbb8405c9f73b7da. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/USHM22122227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a8198802f378121244c5f65393607840907d3d96aeef7d8a6ce8ab7153a4bd. 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/MXG281900441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dce90c810a4210b6d2f2ed24aa45da51041ad387e6cab61504f34368aee9db2. 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/MXG281900371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ddb7d9af56b8b6b71e30c9c5b0002aee2e878ad296efcb7c9eb3d339ddac00. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/USHM82325366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x520ecaa409c38b1f6008b982c6ea3f35e3592e57dffab778a6d2fd18c8ffa127. 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/US9CY2201062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbea86c97bc0e041999de687a11c7adb3272bfef6adbcc93d8bb28ee312587a1. 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/USHM22208133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x456dc5a472114c1161845aebca883814e790b5a58e237fba65784537a52b35fa. 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/USHM22201861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12483900184690a05de6dc8d4ac2d7d03437e66fa8efef6a29dffbd3923fc545. 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/US9CY2100443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x865ff213ab17e1abc3bc25c0ecf97fb303a90d17ae75a6bee7ddd86c6d00adb3. 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/USHM82196760.
Martin Garduño el Lider de Tierra Caliente
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8a2678699e524f80ff3379f45f5a759fda58522f44be9f0d1238088c609286. 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/USL4Q2250014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2172a2a13a9034b917b47a138b6a37e613476d9bc1109df1a5ae8843c0846d5. 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/QZN882533859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc89edf756b1aed61ab8b392803cb2c9cd6bf50ac6fd95d9933df786c8f1e94d5. 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/QZN882412846.