Mustard Plug is an American ska punk band from Grand Rapids, Michigan, consisting of Dave Kirchgessner (vocals), Brandon Jenison (trumpet), Jim Hofer (trombone), Nate Cohn (drums), Colin Clive (guitar
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 0xd2a39a8e4ac76a3cccb9a4853601c0b569c2307a01b6dcf29a6743e38eafd213. 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/3a0b55b0-e46b-4d00-98a5-062983bfa8e1.json and https://artists.proofprofile.net/proofs/artist/3a0b55b0-e46b-4d00-98a5-062983bfa8e1.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 0x3eb354e3bd75b2cb9480e6d2d5cf40f229ea7495109bc3ba4ebb43137d4e9576. 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/TCAAR1092962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ca4cdf7f4b74cebad0eadfbaa9665e6f50904894a281fc6e54b5bfef5f1993f. 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/TCAAR1093430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ea9bc83f3b9b1e3e905148aaf89babe25f94eb5b1a6592ad1413cc0ff793c3. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USHR20309002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd929abe6c0c7699b5a0287c992deb6223e0adf5e5b5c294c828b1732b2476f40. 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/USHR20309006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb14dc1f4e663b81b815ce0290c8d289ffb9e44cf497bcf6435cf07a5ef3b49. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/USHR20309007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2297f7b319791a9325410650c889ada1481a28cc30490444eac60a59910262b2. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/USHR20309008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce4fe102b207fdf5aedfef6608d6ad195432e0b630f2ece69c4f204d3c269ad0. 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/USHR20309009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd68c78d605d6656c4450c13680c3da025eea06f34f64a8a3ec23647fe6398dc1. 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/USHR20309010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ccfb40d6bf64d8d17a0033f3ca197d4e51f1a90c7456ae7ad8e854ca5fe2a3. 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/USHR20309011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89805283b48136c9c2446a41958321270e98d42f5284e568c7ff08cc56014314. 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/USHR20309015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7763637299f2ab19456ef619131b8bb805720721233895669d6f020bd5f1021c. 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/USHR20309017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4533ddc936660d2b65fc7c48d0404a4d5a7c8ee823866cfc0d9d5ae418bcb668. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/USHR20309018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb99181371bb0cb1cc0b07348622b551b468b9f73f94c53ed51b2808aedb12e5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USHR20309019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1e7227a32caf39de7ebd7377cba1a03cf5e39ea002077fb716928a85c3c857. 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/USHR20309024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e87afc55656aac079174c26a6758bb8d1bc1afe905bde2c06b390d222ee5fd3. 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/USHR20325005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5362270e9d1d62f074d21bae9877f12d7129cd96392d72bccad5aa37808e8bdf. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/USHR20325006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb111aa74c0fe68cbb5daf92ef9c6520af6e73f303c24ba375356822ff0068f6c. 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/USHR20322004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed1e7227a32caf39de7ebd7377cba1a03cf5e39ea002077fb716928a85c3c857. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USHR20309024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31039b443782a29eaa496a87760c4aec4543665bbe4d9a58af0c3f6f2de6bee. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHR20725015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe5b7701a8b5daff9650170fa7b9a18b831f0cf88c9381523b55e55a610d5ad. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:47:18Z), 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/USHR20725016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62c9736098468dcc3041e8fb65784212c4527cf0c404a850085b89f2fc7ab134. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHR20725019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a7d36a3f892071d25d731c1abf1593785bddf4b420c982a9b5d631d610fa23. 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/USHR20725021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c5aedaad00945c7d9ce1507c9a73944035df1758e2ad129506face2e3f9da58. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:32:18Z), 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/US25T0894117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83651046859f3d2d51785f50538b612f0635dfaccdfec5839e358b988c07c22. Chain 2 (Bitcoin): anchored in block 958667 (2026-07-19T05:04:54Z), 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/QMDCU1300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53e4cc3d7dddce7f86355daf897be974bd3528516627dcb11a091e55b9b7109a. 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/QMDCU1300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfebcba1e8ab2d302a3fb6f82c45d9ec978269be0626e14907b00d72cf1fb853a. 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/QMDCU1300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf064c89ca713e664590420410191a47a5130efdf59461d0f532a218a97905bd5. Chain 2 (Bitcoin): anchored in block 957550 (2026-07-11T09:54:43Z), 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/QMDCU1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda20b5e1a1b7b21d17a4788978474a83c9c1c4ad6bb357b053e1bf0ffe370655. 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/QZHN92359388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48f445a50297275de38e4af002d1a5feb83fcd4f3ca82061eaf988529374f3d. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:26Z), 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/QZHN92359389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f7bc2109903cf945c015f6a5754b6542297b028e0ae909ad349430aa101581. Chain 2 (Bitcoin): anchored in block 957552 (2026-07-11T10:04:42Z), 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/QZHN92359386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85df384db8ad81c704d5dba7129df5e37b3268e101a9c8b91e5780c49a7fded3. 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/QZHN92359387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda20b5e1a1b7b21d17a4788978474a83c9c1c4ad6bb357b053e1bf0ffe370655. 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/QZHN92359388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa48f445a50297275de38e4af002d1a5feb83fcd4f3ca82061eaf988529374f3d. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZHN92359389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437ecf1a1258d9b4a76b8247dae973e4399f6c1830b9116bdfbd497e9ab60483. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/QZHN92359391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1eddaa3f2a89882ef5b79412fa65b5101772fe51cf238830aee7ccafe2e9df4. 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/QZHN92359394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec767a99f1b6c1ce95c0b310e645632d29525e6b0645ac14fff86218c879c9ff. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/QMDCU2400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6d42c4d627d4dc0a1358675d8b9a45390e3b2304c4985189652e977fc57369c. 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/QMDCU2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7f8bd0c94db199bdd42539b045dd09f1986d36ff0f1326704afd1ddb4c6b256. 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/QMDCU2400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27e2124b8758945faa642897485c075d8d70429a797af3c7057cadbe798fc608. 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/QMDCU2400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e6c4034d75809e835e068da269935739d9c358dcbfa339ea029149e208e34b. 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/QMDCU2400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65f68814f09f8c24256a3b90f982d3bba67d6049d5bc9ee3f8ea02fc0a8e7be9. 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/USDHM1509736.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e87afc55656aac079174c26a6758bb8d1bc1afe905bde2c06b390d222ee5fd3. 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/USHR20325005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb99181371bb0cb1cc0b07348622b551b468b9f73f94c53ed51b2808aedb12e5. 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/USHR20309019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54bcbab8e19aae10581fb22c0d82d56ffa36cb1da73e6b9fe9595c019cf2240d. 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/USHR20325001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d0430b317e06deb4ab17431fde67e1b62c0e1bdfb3cd3db71b79e4924eea486. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/USHR20309004.
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 0x64aa3d8359a24d6b3d4815cf3d5537c9b8e8fd371b9e8db33b6afa0adf29031e. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/USHR20309023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32ca3f8406628f2c1de0dc82840307f4525628d8d09245f8ef3834b77b52c022. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/USHR20309003.