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 0x4e42247a82260dc8e7e2f796d166402683b22bceab83a3f922c236f075126177. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2eff80b9-2980-430d-835a-9db3347cc2a4.json and https://artists.proofprofile.net/proofs/artist/2eff80b9-2980-430d-835a-9db3347cc2a4.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 0x657afa28cce9d7770c0aa49a050a2c5e191b8f22a958f6a7f1f91d01f029e726. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX202024314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56114e1b4eb5ca853de31b49c905717fcaa5105c811b801fb2e5bb3a5394399. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/FRX202024315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bd82e368ca38d151b16c3ae43355e79a1dd15bbfa278f733476079d5393695. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/FRX202024316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d0192c641cfd2929f2cf6fe7377bda447f5cbdf60bc9fd9a6ab8a02b733f93a. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX202024319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f3a0a3dacbce9ff7beba9f73e97d94df0515d08deaf00725c9386b4e71b07d2. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX202024320.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0953767b3ce560cb249fc4345073c6f773565d213cee8e0fe92833d64386f08b. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/FR59R2069802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99eaf8c6079d859d1438bd82da0cc3297d24f8731829902a9350441dc6f3f058. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR59R2069803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb257d7ad91bcabca3e9fdec6db4eb10a360a8b6ac56e177b7dc235aaeb467255. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/FR59R2069804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34da57db45550cc2d90d2cc3a3befc28e0e4975be7b010e3b50ef8e079d9b201. Chain 2 (Bitcoin): anchored in block 960121 (2026-07-29T15:22:21Z), 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/FR59R2069805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b38979570db662e3ef660e23f05a83183d977043dc1963bc6c56f2b9559e1a6. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR59R2069806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa19e893657e3e7ef8ddce4e54b1fab6a0bd655c2ec7ef709ab0f046498ebb960. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR59R2069807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37047bba8d7accc246cc85a6d2439c19b5a94b789cb73d8603dd1e06b2d4c88d. 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/FR59R2069808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5789e84f023e5ec37c82c540a91355a7ecc84dbe27f0454fb6fb8b5cd22912. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FR59R2069809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80b5d0d6b35df8519058d168222df5361e5792aa20c805bc15b2dc97cf972055. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR59R2069810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36960a3d0c936422da024dd3e1a12871f7fa9a9c94eb875621d31a8a8af94d9a. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/FR59R2069811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8929c4e4ae1e83c6774999d3991aa63013a22e64afdc23972da421348ff7daf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FR59R2069812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659f7a1c1e09430c49a9c7e91cb5c5932789a535a618833eba86bc49de2b6056. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/FR59R2069813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bdba1f3bf9e231ee561409497411e0edf970fe6562eb15d66bb36e1c35e590c. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/FR59R2069814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ffff4e806f1bc2967733447cf9e83363c4dcc8fa8d399b3d59083e2133a80b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX202003507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4da04c38c5de003c9d404fb234b1e2ab79d5613b81458037b231b07fc49fd94b. 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/FRX202003508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4971b7d4d8ec41a67196f0d1bfa2a369731f3c1f9f28c50f08550ab79c5ebc0. 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/FRX202003509.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x834ef5ff19176db147d82e11d90de9e76a9d07fc0c7b9b3d0984d9694e502664. 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/FRX202003510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98f51a4a4e9e776bb16b15747c998649a74ef352eec0f860a2e17ca53f5d34df. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/FRX202003511.
Лучший мент образцового города - Соломенные еноты cover
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607caba08b1fa352a5483b7be7dafa9369edc47f88cfbbe7455b6ecf4367953c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/FRX202003512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0424502625c680d444abaad4e50d203664b251d46eade8be0b48d474af871550. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/FRX202003513.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd33c57f42ad24e090abb87f08ee79794363fae2577e94281ad2e7e5b011ea2a5. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FRX202003514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedad47571976c7a01de94b9c21287f0a8589c30980c85276eccbba14411a4ad9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX202003515.
Откровение скоростного пророка Кирилла П
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fdd15e8fcc2fa60c5c5f945a47c35abf574ef5f1bdd8e88caa57e25b7bbb568. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX202003516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc23f43fedc497c8fb84e9bc2df4d2a2d3d9e5657f1b364cc992605eb6abee3c5. 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/FRX202003517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x241f4f0d3a3837483f50ee1b28131159a99d008baf3029d7944875324d8f3bea. 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/FRX202003518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8c5c53f8f6d9be49967c99792e2d3d6d65f99b4747d7ee074a34485f60c43f5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX202003519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7b0486d68cee708ca27eac6b3493924bb47d7c0c93c44676af31cc367edf5a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/FRX201860051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ffc28fcadacbfe8f4ad09a2fdf8ab914d725d0538c96e8716f0848c465478d7. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FRX202130643.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744b8fdda812e2c489bf129eaacf1c31f8646d79402de6a869ca405ae89d94d9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRX202111838.