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 0x0e188f854f28a397404778c67dfcf42772abb0471b43c8940f352adde23d4b14. 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/15b740fb-f1b1-40bd-835a-b633cb71e6da.json and https://artists.proofprofile.net/proofs/artist/15b740fb-f1b1-40bd-835a-b633cb71e6da.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 0x2056aaa5efd9da71ef74344a4afd82f37113f06d212420bef06029ae13b0b052. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TCABL1391672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42df50b996a10ba633d2a6182dc164f4fd905fc03a8698be85284422f579ee22. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:33:02Z), 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/TCABL1391677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fd932e8ec6358a24a4be0ff161c93d7e25de045f8b5bd1a01be9f105ae6b75. 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/TCABL1391678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a505c6fb1bf586d35016aed3f0d3840c3dc0b7fad76c60aff18a908ce67f52. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCABL1391686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73bc6bc2908227141c320f8efd6893e8357244d8d508f20c97846a75ac486f84. 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/TCABL1391671.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2056aaa5efd9da71ef74344a4afd82f37113f06d212420bef06029ae13b0b052. 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/TCABL1391672.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x636ce516e590432f8b0b7176b1bbda7a04a17128b833db8df18e7725fb58e6f8. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/TCABL1391674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42df50b996a10ba633d2a6182dc164f4fd905fc03a8698be85284422f579ee22. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:53:25Z), 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/TCABL1391677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70fd932e8ec6358a24a4be0ff161c93d7e25de045f8b5bd1a01be9f105ae6b75. 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/TCABL1391678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2762eaaab1a51364d58eaa3215f9cf533e1df772f3a215df9f75eaee073aa3c2. 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/TCABL1344047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2981ad81ebab0f929a6a69e9bec883d024031b859d804c96fa76c9008040d7. 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/TCABL1344037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4c9f77c21af3c8cc7e6a1aa49213bfb988fa832de54f100ed894a1a44ae837. Chain 2 (Bitcoin): anchored in block 958823 (2026-07-20T06:43:34Z), 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/TCABL1344040.
Тебе В Прикол (feat. Леонид Климин, Хамиль & Змей)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2762eaaab1a51364d58eaa3215f9cf533e1df772f3a215df9f75eaee073aa3c2. 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/TCABL1344047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc12e70cbddcf2749df09e95d95d29ded98c439c0c650069696ee7bcc44556fb5. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/TCAEK1999364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffcbb1e4106408b9862a34fb69cbba0bf56fe765e62c0ca8a8a50052732f1ed. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCAEK1999368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933d10adc02018a0fea4080692245679d3f57bf4677a055363230add72ecf3d2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T16:37:24Z), 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/QZW9M2272058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35394e59105b508ea6410f467f5a349e1a9d18e43e7bc92cdbc9f95851d0f57e. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZW9M2272060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3318ef7945203449f82cde9a8c74b47fe129b34a2eecd2b285bd1934985f6095. 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/QZW9M2272061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x037bf564a8b94dc210e3896177b92e80185fe0e5f01151025f1b0dc36775ddb5. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZW9M2272062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d585de59d2e9841605bb9437452633a9fc3d0dc493e9a932db99696533da6ac. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZW9M2272064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35394e59105b508ea6410f467f5a349e1a9d18e43e7bc92cdbc9f95851d0f57e. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/QZW9M2272060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3318ef7945203449f82cde9a8c74b47fe129b34a2eecd2b285bd1934985f6095. 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/QZW9M2272061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1e2a506ed20e4e4ca292636c896e420342c2163b8c6fc92eb251640a379dda. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QZW9M2272063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d585de59d2e9841605bb9437452633a9fc3d0dc493e9a932db99696533da6ac. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), 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/QZW9M2272064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e0c95abe86446a2f82ea4a494344fd280e9d62569378c251a1c4fad3d99caeb. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/QZW9M2272065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38fe7e1c94c738011a8f2b0409c4db54dce04680994f25e4201056372afb3050. 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/TCABM1300464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6385c8af146aeb4daa5ac48f06b9b3bdb3cb3389fe535ab377f80e961d6b614. Chain 2 (Bitcoin): anchored in block 960113 (2026-07-29T13:38:16Z), 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/TCABM1300460.
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