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 0x42770a247ec87b25c60549db47c1d4d9d80de501ff22515088ce832fd1ebe0d5. 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/f1d94b2c-c33e-4fd5-a1c3-622c4a3c47dd.json and https://artists.proofprofile.net/proofs/artist/f1d94b2c-c33e-4fd5-a1c3-622c4a3c47dd.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 0x1f050617f0e1f625d274f073432ec6333aed28c2383c095a6cf2504bd38261ea. 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/FRX201971719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc5d768265eb2048bbb5b76699568e92a9ff62b701f90a9be48f2c88e17bae5. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/FRX201971720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5861ce00ba7ab16f190e82ed5e431fa8098b62930f33917ee4e32ecd34370b26. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:25:03Z), 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/FRX201971721.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413f5dd262172aad75607edd23ea587510c9d02616c12f85899aeba6bbfd13ff. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:10:15Z), 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/FRX201971723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07e9743334ab2001162d6af409ecf46c0c3d30d3587ad24c21e4ef822ab6df4a. 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/FRX281973100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fe4568c5cd155b946056bcf4dc7d97cb485c23e827919fd6f53f06cf0c6c764. 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/RUA1D2017474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33aa5d1bd5e3a6e1d8c9cd5b76827901d758b0d6fe78a2db43f8877e4e4065e2. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/RUB422002557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581cb64e01bed3afa8c9c64f778694448f626b5603ea0b7af838f3bb21b18d5a. 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/RUB422104047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ebed0eda65f46561b194b7ba0b8389c62bd3a80f3c7fddf8665025638877d6. 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/RUB422200177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf328784f48b6d0d8741ece47c831371756d0ea286882db50753af604b5fd19c7. 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/RUB422200630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb004fc09f16dbd1c25967481dfae116e431813e65e1cfcf974cad0775aaad86f. 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/RUB422200367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x997a85edf40a3ba0f97c176b06a9d802840d8548d5eb0aa6ac0c915da2c25076. 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/RUB422200631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25ebed0eda65f46561b194b7ba0b8389c62bd3a80f3c7fddf8665025638877d6. 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/RUB422200177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2c3487248fd76f38ddc5b36b057bc27b247de09b956ce95b8777fcfbfda95df. 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/RUB422200632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1f12c2ba6e0a81dd8b082e9b3042807b1a99548a32fb7baa6f4e0b30cbc5d90. 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/RUB422200633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1facbcbad1fb7d6645fb7c3bc778aaa7bd7b6ad6eb91ee13574ba609a0be9a. 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/RUB422200634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f9d74ce297cb507ed62a17d8b55d6681dea560f2495dedffff608987699934b. 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/RUB422200635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f6cfc73bf731a74b76e4e32ea40f309d3325d8b35c23e4b554fd60ee280a91. 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/RUB422200636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa21b08c86ef176cba4cab1f8f504ebde9ae631811a190c26c9def77741a092a1. 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/RUB422200637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea819a976f393867edc7c6b8a3b5cadafe31aa1fc7fe7975edee80a4645a1f0. 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/RUB422200638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12670ccb922dc676c73ab7a4ca374f8d00f9ad9f43ee66ff442f09242ae909f3. 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/RUB422200639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x581cb64e01bed3afa8c9c64f778694448f626b5603ea0b7af838f3bb21b18d5a. 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/RUB422104047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f40ba563808d7a1070d0534da64a99895bd4b276c89e796002c2081dbd67ae4. 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/RUB422200640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1287f747c24976e90599f6aa0f946d49f7ebb108a9f73242fb1c37d1fa053331. 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/RUB422200641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86ab2940f8d38aedc91e9ab2b129cb77ee031a3d7e622a559e317e64774134b7. 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/RUB422200642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1363d23f24ccfa0d859be86b5be1ab7e2878748885ee8de7fce2a312cfe6f6f6. 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/RUB422200643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0df3e94b6f4af1f4cd5c3d6d3bea20e0815d59a03263eada94a8debf4c7b2b9. 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/RUA1D2318064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45a703e26f3358f2c721619553b21d88dfe6a25ff3d0fa37fb57c64ee1bdb98f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:31:27Z), 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/RUB422303500.
далеко (большой Бушизм) [prod. by wex & heysubr]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27c43c4d9e03588bd72efc7a3978e6343f947458d788414cd6cb2030353ca37. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA062023630.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd837a230d430ef5577f0227d6824cd3b6fb6531a9bd3b562e7face0e6652ba1a. 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/RUB422303139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d3bed7ae70a38098eadb89c1437775a359b358537a15ddf001ac8c892f2627f. 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/RUB422301828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeaf925aec1d3d35e0bb1fa990880238a9313acf670c4eb20d97fa4952730e9a. 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/RUAGT2213924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5849d689415e6ad31f57b933f1963eb411157cede9f79c645ae78cc91931e4f3. 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/RUB732057412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50276c6cc3f00dfc88b34fa7a032fdd51bc96cf41abe17a179a6dbebd0a55353. 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/FR59R2289308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb512571c32d963cbd6ba9bdb61dfa6ddaea2b3d689d1e1bb2ea868ab6521bf83. 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/DGA072279021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7da1a8089560ae3ca05bd73d2767e40f2cc927dfe0259591073df562e568285. 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/RUA1D2041365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa02f823f5aa904444032c1edf74e14d09ebda450222f14625436136baf8f3ea8. 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/RUA012100362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafb1f648774967bf506b79a7f4abdc870a7af7b0875ce1b31a810a47b47fae8c. 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/RUA012100369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e1b6ea18e60c85e0eb5c03447aa442eefc100f7cd8773993a092e6e4902c18c. 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/FRS182065294.