The AK-47, officially known as the Avtomat Kalashnikova (; also known as the Kalashnikov or just AK), is an assault rifle that is chambered for the 7.62×39mm cartridge. Developed in the Soviet Union b
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 0x9413636f696171d506e2baec78ba7bbd7f9081f9778e4345a457763a5785ccc5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3daff8f5-c2e7-4c99-9e74-bbdbbcea5378.json and https://artists.proofprofile.net/proofs/artist/3daff8f5-c2e7-4c99-9e74-bbdbbcea5378.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 0x4f85d8bdcf2d814cea2d3f245384c12ec86c3e564a3805efeec62da6c556112c. 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/FRX201652033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b29cc029cb61c63ee4e7d4b27d1f3acbbac2bf965ba65ed01c3c346673a8320. 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/FRX201652034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbffd77e9486798cd5a4332c930387a93dfbb19ab0597f9de0826fb20af0c23c4. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX201652035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc63999884ceb23885f5bc93848101e1a937edd2680f1af42eaae03da5d5c8b4d. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX201652036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20607d89fa92e55d79faf48126ea967da615c7d2e8bc85e02929acda00e00b7e. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRX201652037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03806af4542e56d975dc6dc50cd34ebfbc669fce6b96334a708482e67bcf67e0. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRX201652038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x821beb2fb374a9da4701b0b51c93d7e49179f286091a3b78df6c56b0ef5647dd. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX201652040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5064770b41e9f395973e7074d4cd5ebc3125e41f1eb0a833a48c70e92023053c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX201652041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cd274bc734565304c52c12fd1c4877b267142c52ec9f4a068982707ede3100. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/FRX201652044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2dd6234393aa4ae8862364f4bf63ff0925a087d9d99ff7f43e68c24f20ec3cf. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRX201652045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94e35445a1b0e4ce4ec5c60a595fb244159d1ca1c76bd40cd56b872348b7c4b. 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/FRX281570820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ca9fe27293cf9ddecced1c4dd48ee058216474f8047d341ab001eefa984b19a. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FRX281570822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934fddc512b8eea0240ef80ecb6bfc81802dca3c6da89314a6356cf4e7b1078b. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:23:50Z), 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/FRX281570823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da00919da41cc4cb6dee254c1518385f585bef6e0a1a08fc66b5ce2b12f63dc. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/FRX281570826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057a77b4a7b5f84ddc9492df35ef81dceb5175e2175ea534314c2da17ec2b8c0. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX281570828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5db35801b77a6af22540131717c3d2ee2f8b6db1fa4014a75b07c1a70cafe5ad. 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/FRX281570831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c9093d8adc72587e44ae2ce575ec8d3a94e818c0d8b47b20af293fc1a933b6. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/FRX281570832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2584f2fd077f8ab9cf99a17e0dcd6a4bf97a0f7afb467ef5fcc091b8d2cfcecd. 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/FRX281570833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefed23235c67e42e0e5d7f3515db18d28c83892fa0bf360ae9e99a8570b9b061. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRX281570837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b7ca96054eaf292c87c688d00bd0c43abfba0053e2ea30bff24821bf7ae4d6a. 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/FRX281570819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x866cca3c776e70bc4e141e569e72a2b175f2ebfdd85ec3b2c6a53e2f358b4a77. Chain 2 (Bitcoin): anchored in block 958117 (2026-07-15T10:26:58Z), 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/FRX281570821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x934fddc512b8eea0240ef80ecb6bfc81802dca3c6da89314a6356cf4e7b1078b. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FRX281570823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2584f2fd077f8ab9cf99a17e0dcd6a4bf97a0f7afb467ef5fcc091b8d2cfcecd. 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/FRX281570833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefed23235c67e42e0e5d7f3515db18d28c83892fa0bf360ae9e99a8570b9b061. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/FRX281570837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d09fd76c9786bc2dcc77857a2c838560088bb35d62acbc062ff933f5e4fff5e. Chain 2 (Bitcoin): anchored in block 957961 (2026-07-14T05:58:47Z), 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/FRX451576665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x673467f2914bf71331b22ce6fc1eec0b797b4928966d602bdca6a4a72d08fb8d. 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/FRX451576670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea9d07c17c0d119458be3dbb548292f3d1d2f378a7066495ac234f437c1eaf36. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/FRX451576672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7be618eb52bbaa60241f0af497bc9df59d0aed19e80c50c0efd1971be15ae2b9. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T01:03:30Z), 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/FRX451576676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2a86b8f95e1b522c46bcc87e70497851d8d2cac754bb41b61eb50338cab5552. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/RUA1D1712336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99343ff77260de540e512acfb4027444264c9a781be76cb09ea84e0a57d5eefd. 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/RUA1D1712325.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ebf22a0d17347de66e1c43a7b61432968ab5c05dcde06a957807ebe80f7822. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/RUA1D2240142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e956ae8b693c126d3bcd29428f404eaa2b8aa8676b93353bb42d595a129da79. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUA1D2244479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dea1a8fee8e6693168f2358e3f357d5273cea29f434cf084508731c79d6aa3b. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/RUA1D2244489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1615c10b020ee6fd94c58ca51d41f73cf3ea9a25c29702c1305b82fe931b8d6. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/RUA1D2244491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f620af67f180a7d8d7c5dd6cc5d085246393e342b616090a7e531f592078a7. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/RUA1D2244493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb714862674a3ba7730db1eb72a651203053ef9d43a1e913ca787244a864f8f2b. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/RUB422403279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x506c0a95a8ac853a4133cd5ba887af7dcbcf122f51906e16f46743ca000ed64b. 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/RUB422403385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe13fb0e990a8ede89f4c605f4f7620b9b5c6174282f0bd23f12bb5c7c69aca71. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/RUB422403386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x186e410e3fed707d2c657b4014ea03bbab936b586dc81e662254db33cc72fdd2. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/RUB422403387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abfb745f9081d86adb65e3ad7e0011d501150b153826d515a340bb5be3fbc7e. 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/RUB422403388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15b360ed659549f64e6ecf69226399f97879bf3de67e5cdc28eb487eecdf76f1. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/RUB422403389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31ab5e1e7d4ca64e8afb2928c4a7d3f24f4009d48e1ce500b8af71bc907e264c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUB422403391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed36bf1b8fe17176b164fbaf5c60cceb7321c19098691328623f1383c6fc402. 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/RUB422403392.