Calvo may refer to Calvo (surname) Calvo, Cumbria, a hamlet in England Luis Calvo, a Bolivian province Porto Calvo, a Brazilian municipality Calvo Doctrine, a foreign policy doctrine Grupo Calvo, a g
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 0x62ea18f25b2d26fb6841f943c4a9b87d84a883de98eb20ce72467a09fa36ce79. 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/c400a564-cff4-4f44-9dbc-8e206dfc92fa.json and https://artists.proofprofile.net/proofs/artist/c400a564-cff4-4f44-9dbc-8e206dfc92fa.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 0x9b18aca088d3ad178c4ee00b16cf044ecda43d1f7feefe311a866ca9cbac301d. 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/DEMA61906224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe1d6d544d8b50323f7900ff34fa8fce3db057e888f16913700c0d50b0205236. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA092353592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd6ce6533d0bad9b8127d0e5bcde681e0d1ce3d760c58f21b2cfb91f07b4663d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DGA072387016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9dbedea2b6143969055225f135cec7ff51e337679158b589e8e78803a167fa1. 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/DEL712310208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66949cda03c131798c669e8cd1f50024d745df2a1b1acb1aa1ae3d64187702fd. 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/DEMA61906222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa486b52d12381192b484a8fab8dca844925bf6f82fa316063428068dbf140045. 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/DEMA61906220.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776e948cbaf16c9acef2662b04237b0fc9c3a2a9c8bf42082f881825e8ee5e9c. 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/QM6MZ2217329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f156e115a21766823be82addace55efa68f2866336e2e5fde6ff6f8085b1669. 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/QMDA72183079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c4e99bb41de605d2ba630570b64aa78eeaa4d8ac28fe2ec1717b220ec4ce79. 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/QMDA62114115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf41412946a6ac89fa704eb8eb4fa00c95196f4e5ae88475261f7cda60276b828. 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/DEHM82100034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54fb6ba9e4a0ac7205bb532c2a6965fe600ea19560557ed67d4029446fb11bf9. 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/QMFME2147709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a19a7665462684818d91e51a4e6f091c9ec8b0468c42ebb76e7bfa09672170. 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/DEHM82100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb059542136e03b15999564428b2e1a9f29ec61b9178e21231da325e6c9719df9. 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/DEMA61800781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb320f964cba7b9eea196a3cdffb0f90fb9e8fff5271669e1743f239d72fcff. 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/DEMA61800783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x363acb0925c65276774cce8540ed4faae2a729295127b6ec6844284439afef2a. 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/DGA0Q2363218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cab8b5f041c7a8bb343bbf86e0bdbcfb232559c9f19a25bdbd6319f16fe8e5. 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/DEHM82100031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3845cfe47db6fc7eaa378e18dc3480c31931219ca575d3d728cb9f6a28314838. 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/DEPI82311610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aad4262d7b93a296c487503e5434c078c271c0b7980125bb9b5de74078b8c6a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM6P42431780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b29cc8a212778d9198969ab6f41495f27820f7a832dfe531032797c808e4f3e. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEPI82431822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f15155595ec11651a215af9d266f6cb9b0a65bdb4cba0dd354400b31ba200d4. 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/DEMA61907002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9463e5642a93598d1b2786d9b81ced7ea05ae3a2b9746ad135ee5c0d54843fc8. 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/NLF711609214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bdad0a1d4945c3e5287520cb72a94989e07f9d7ec0787c6dd956973ad01e1f. 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/NLF711609005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526c619248ce3e6eaf75555185088efd70bcd2ec19486cc0fd612ffead3fc759. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/NLF711604271.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d3325d5e41c5cb9235189ae5c543745f4cfe0f539bb1bb4c5684597c2e84615. 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/DEN061501778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf083619d2e2c52015041c12f0026c59bd5d8bd9d296ea0f77daf4af6f9d2a5d1. 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/CYA221600067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b71745fed30e986eeb530c08f345991ee5107dde8ed6a7873470222cc643086. 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/DEMA61907429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6230977169fc46c8e354d911cf08434f43806277f8715d3313e24565332fa3a. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZWFJ2413844.
When the World Goes Down (Victoric Leroy Remix)
When the World Goes Down - Victoric Leroy Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d23e77a193c233b72634ba03be1e2b9070d07cf9a6493ef06d1804ac25c39c5. 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/DEL712410183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9f4daa642f066a498371873f479479007687ae204a5165dc9f952afa578272. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEPI82432484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc61ee506f904e9826bbbbd5b1d593454ae110a6dcf3b40f33efbc0a052400535. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEPI82415980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ab90f90e998f4e5871080cb5af9f634bae108bb20ce1aaa0514bf6f29a5d693. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEPI82415413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x437ef7f059e7da2223c295cc012f46c4715b2bf51c67bbb8551f5a44f83c8caa. 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/QZES62458488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6357f1e83e7ea70ad620e03925318d8d14dc5bf09c5cd465f47e4c258efa500. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/DEPI82405469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf767033c177f2a952e5da2d1c4cd1012d4ce0d5ac80692cae802d01bdcd9b3d4. 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/QM7282367922.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d11987e46af5341062bb4088ee18aac2bfade6e0c524c054e7122068c907dd. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/DEWM92200474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5709a3185b35e410a584419e502224e06390fa32050d199d984489b7ebf42f1. 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/DEPI82201715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f6326afba00a4b27428a4a0170987e606b60f42b9a7514ba645dcf857208f0. 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/QM42K2246418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0cf5e6dfd73483dd0309d45faaaae95d16edd2e688aca7e5be86751a79c6a4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QM42K2153821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51c0502750347dbaacaf886617b8fbb123f0aca556bbc0095d9628d1a71dc81. 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/NLZ542001949.
Broke In Amsterdam (Freischwimmer Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4d6f93e16741fc8374917e4f4750e25d584280e9ddcb6e08caab07a5e126add. 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/DEMA61901834.
Blackbird (feat. Jake Reese) - Calvo Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9047f08f189d415cc8132801fcf23e532b91d572a3639dc5e4d8ebb3ac4bcbfa. 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/NLZ541800122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f00c4221359f02203ec8632214a55dc1e37726caf3c864182279ecf65f4ce4d. 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/NLZ541700289.