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 0x14d4a9e153c1a71990d1ac382bcb40ab3a64e57dc63f5b13df9183e4ec7b8057. 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/d9adada5-fd73-4894-b7e0-9fe456e9a976.json and https://artists.proofprofile.net/proofs/artist/d9adada5-fd73-4894-b7e0-9fe456e9a976.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 0xec68bcece70c4f20072d1afe66fed5aca807f8fbfdaa1a00917977eba442b396. Chain 2 (Bitcoin): anchored in block 958907 (2026-07-20T16:17:58Z), 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/RUA1D2122388.
ЗАШЕЙ РОТ (Любой ценой) [prod. by takizava]
ДА НА ТЕБЕ СОВСЕМ ЛИЦА НЕТ (prod. by takizava)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361a380ee444ce2165666a3028613597848d32c467b149c60e9260df3765068e. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/RUA1D2216101.
ролевая игра живого действия (prod. by WARYKID)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31e98c796cc9b48b3cde6f2e156b382c4145c343ecac477d7a08469e135f29b. 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/RUA1D2243408.
Последние деньги были (prod. by WARYKID)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96406879538df28bcda5096492988ee36ed8f11842696b6d9029ada413a70772. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/UKEX32218639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f6d2112d3269badeb66c09f611a7f8302afd8dcf7c25d2f628b6678bfc54570. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/UKEX32218640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79714328ba5026ad365c6c45882c0c3931739d745c7e3b8315c551f11de62bed. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/UKEX32218641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baac1e2aa2f16569169342edecb59fe1340b39cc2a3fdfa139622b44bff51b6. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/UKEX32218642.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e35654e4479f67d219833086c5567d61b92b46bab2239da1bfd35a32603a301. 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/UKEX32218643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed2cf7ccdf15c9aa379c75f2ee98c4f404af46d0b539eaa3205c08ebee70cd04. 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/UKEX32218646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd01b9af642201215cfe920d6f799790664b245bbeca7b5b424057b9d958aea61. 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/UKEX32232682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70cccb595895124eaf46f1b7f102678edb647b0287cb768f44a32f7ebad80b69. 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/UKEX32318277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65eaffe1b7a6ca4cf91ee3826b60150e1aa66a919c54ae8dd51c4fb033f69122. 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/UKEX32318278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7a9ea83530092ce3f2a53f121d246c04bb0f2f08e0132d5a19fc8b0bd3ecab8. 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/UKEX32318279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbc1449b64f856ec474f01ce39118e4f7948dd511f2b7f8299df7b767b03e95b. 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/UKEX32318280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b83cc9c32ce10c85161ee314bf46ab48a41015d8705744c61f09fe68b79db6. 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/UKEX32318282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d9afcddf474c37e49aa83a3553b96e1264d44f4986117f53fcf3b15120542b. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:38:43Z), 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/UKEX32343542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb26214c498cb18b224f96c05efd622033a70a6f46e2fa0c9eb1c6f64e309c634. 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/UKEX32407570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30e573fc0224f00b20569d6e05f48b719e0206bd638805c45a5e27c8f1d8640b. 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/UKEX32428303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26cfcd2d53cf2afd7070b7f7ec847ab8ec4928c9d0936260ce98533e28c90e72. 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/UKEX32428304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcc79068948631d43dbbf0b88d05815e347889001d57c04491d0089c47a9f598. 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/UKEX32428305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6db40215b3c848025b7ef65803538e0a42e47ec32ff2b3d92454e1b3384bbf7b. 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/UKEX32428306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6375640c5487ca8e2b314201f4e85ca610a43c24416ca8be274cc1fa5c83def4. 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/UKEX32428307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdddcc674fd510f4ad057e1630b6bc64837dac22f5b32db0a9547e2b84da75d8d. 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/UKEX32428308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216b0a07a7dea868b779f4cff5973176cd16c0c0b49d763d7f1fbbf1f4d037d3. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T23:59:48Z), 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/UKEX32437501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x168fadd7ba0d921a3bd72637b1fe673a9cc064cbcfa5cc7b81d67682ccf70d11. 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/UKEX32444707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca282a97c35ecb0918a82489127d6c42995e1ef8037c9410ff3b946a21e504d4. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:22:39Z), 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/UKEX32503202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c36193eb12a195f13224be789381ad3cd2d9a7ddd58de3ae94be002f679efe. 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/UKEX32506768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb9fc4d538ec8fb87bc51422d875928db46b7016ef6ba5098d6c56d196109274. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/CA5KR2587405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57e29d37f11d74e42580993211f5d74057c1def1582656860ae646fea9ddd421. 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/UKEX32302491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d335b6d8dbe84655758cda1db06aa118155b206e0e2a861984fed534e3204a. 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/UKEX32225401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccbecf61e22984daddae478d2e27053270ab69dd55e9c58c3a88a575d6ec64c. 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/UKEX32338090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50daa343d4f1999b911f1740749f2b43618c64aee90a71ff8dd96c5ac9b8ba4f. 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/UKEX32522088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac352a61bf93a6aedd914fcd4b4bf4bb14bd111f1324e1662116cec8edbb798e. 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/UKEX32424813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6a01218abbaa151b253cfac0c9093f535c72681300a4fd1bf2619cf7eced3e. 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/UKEX32459531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1491bcdf285a11b0044290e0917841ce35e28dcbe07e5c1c03fa3812e6fb084. 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/UKEX32405779.