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 0xc7bb6660d0d8572d9a18e6e7fb7a184b1dac5d0226edea39357d34e56235510e. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ed67ecc-0fdf-4dc9-9df4-1cc68c9382be.json and https://artists.proofprofile.net/proofs/artist/8ed67ecc-0fdf-4dc9-9df4-1cc68c9382be.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 0x6607ecaee5f0bee84a0fecb727a0c14ae1c6f8f5b43263260293ae368a9fc102. 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/CH3320900407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf4989af984e3eb8f95ff6d99d53b452f5c7bc1ec5279646ba3fde5a27f3226d. 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/CH3320900409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19e6b41776f90da9d1962f481e26202684e138b4bd86ea0e7f55afb66c9b97f. 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/DEWN71700238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b83ec00c36cdd028d5255d51a0b319cff56bc2e45cd9630760e6d4bc3e9ff1. 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/DEWN71700241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc855607d8389b0459e4f8bcf56039464c4e1edce73e406df642d32d9035f577a. 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/GBKQU2095289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8de06b93f3089b64ae9be9f3ef0baa643a51600a3ccb7f5940896bf1fdec414. 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/CH3320900470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75c90191c82c36eadde836ae638ee0c2af743fa5fcae2c0fbbe01224b254e33. 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/CH3320900471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a14ddb23aa887a68c3c66416d65569b43389e550edc162c7d9632152007e098. 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/GBRKQ2233381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5dc62cc5f46ddb02dc9343ed3d88c27c982a7dc66f9f1e5d359644f2c582eef. 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/ES71G2235760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e2a0b9099a196df49c9f4027917dd01286bb582aba31a624f67009a0786d19e. 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/ES71G2235762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14b7e6913717d9ab4cf29bf6a45e4b4269bc31d0da0f9e20e221747b44fbb0f. 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/ES71G2235761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04678ccf03042dab3d4c3a2f192029276543e0cf50b9d5fcd9e9c1cbcc3deae4. 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/BEJD32100053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba3e692a3820b9a98c2e2a2b9d82a884a252da4a363cc8352108ad4714403bd5. 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/QMDA72338104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9281c0a3c7501929d31a6c07915cc1202ba67727ae7741b81846754802d257. 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/GBWUL2076179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd039ea0d3689c4c914c3bed2abdf5cedf9303f55542bbc4101d19fe7050e4b98. 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/GBWUL2076182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0373e6ec8c3f6652409093c1cb96cdb9f781f87466088a9f9c3e2993fa63a7d9. 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/GBWUL2076185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f62051cba576cf767c3b216ab17d1af523969cc14f3e8e5ba59b4b048dba0e7. 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/FR9W12108814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c87b8b056e19a92f8b768d8a75ae220dc978c83d1def4bb4cc463044f829a2. 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/GBWUL2450285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf19e0135356d519a2f83ca2560bd97af1534d72154d2e6475c0930a2ff3715f1. 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/GBWUL2450316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf9c7a9dd99586743e6fc0dd46eba1fa4202a2fa4729057b2015d79d3ff69e8d. 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/GBWUL2450346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bc77eb5b99880d815dfbb886e32638f117cde2aae02a78731a574b5938b1319. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:18:58Z), 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/GBWUL2450287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe38828937987ebc96b7eac07102e78ea7e9d26df0803144b78bc500bd0db5543. 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/NLCK42235544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c509039d1fad9d3c27d11a239437f7d36080df7c77b9741c6a038faf6a62352. 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/NLCK42235545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x894c67bf481b2b1623bed1af906435cbbe3d1698a69029ac16b7f53cdd85cb86. 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/CH3320900451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa45f424f796e83c24ec02106a320c228c51a3e04f5317f1ff6122d456f356d3. 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/GBKQU2304682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aed49d44523d807ac6e872cc2955b40727618ecaec415cbb31677ed6173afb4. 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/ITUXC2200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb8c8d444aa55cfd6133f8de57196e2ff10ad894b315705fadadf4bb306537ec. 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/ITUXC2200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66730ffe4c097b1adfb09dc1eb27355a91b52f3b5bf195ac620670fd581eb6a. 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/GBLV62133460.
Glue In The Sand - Peter Invasion & Gregor Habicht Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b87f70c61ae82dd72be4cd4d0f451c3f99bf1fa54c1c621c22bc7ba80f94bf5. 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/ITUXC2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf508f5fc8ac8bdb00cc24c52a5176b88d2e82e6b7eb2da9fb7f324c078f7d8c9. 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/FR9W12220091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2912d40467bb926062afb011cfca02d20962a2eb9e36b9ace2695748573d76fe. 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/FR9W12220092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7aff60bf5dccf8e40c1eb7e7296b4bfa1e2985953092ef36875424fffbbbfb4b. 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/FR9W12220094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc709ed9accd7e5cc7883a1a34334927c33879756ab6c4f609fc56974c911fc06. 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/DEU672500257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ff72b9f8f1bf0e8c9678ad44e86dc1d8de0d45ef5f9d6c323f05b3b655081cc. 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/DEU672500258.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc709ed9accd7e5cc7883a1a34334927c33879756ab6c4f609fc56974c911fc06. 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/DEU672500257.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0809f92bb3f9f91d489474f9d7c6783a38f223a29f1ddfc5c854154ae8251ae3. 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/GBRKQ2182695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7e4488f25f4678fae9eb36595844d4d1a9e12a113b979de71d685995f52384. 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/GBRKQ2182699.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x348f3c8bfd9cc958628621c966defdc4e320bc05954027cb3687b6c0d6236f2f. 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/NLCK41095671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3158f2686a8d57958799cbcdb5568fa5b3351f1358e3561895755771d53b777. 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/NLCK41095673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbd19d559a662dba5c2b31c576eff720593a21e32f6c6ed66d4b2e9f1d1b9c31. 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/FRPFO2000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e18f5ea9cad6a3df558728b70424e1069a1173c327fd42a0b825c4c7c6d575f. 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/SE5XG2443163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x698508af1e1e4bef0c859351be9cb7db69985f64c3677a6e63bd36614513aa69. 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/BEJD32100054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8219f39b769d0bbf9299f87c859102acb09ba4261a387baa2667df1cdd019881. 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/FRPFO2000110.