1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xe8985afe5d5024250cf5d9970944399ea756e461a8838055e6173171f259151c. 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/cf941871-a41c-4197-8a6e-af3f0d195e63.json and https://artists.proofprofile.net/proofs/artist/cf941871-a41c-4197-8a6e-af3f0d195e63.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 → block OTSBitcoinBlock must exist at that height 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 0xbc92efd031e72acf97c3571e26be4f0d6015c8208488badf888ec9a6ce5c3bf4. 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/RUB631500110.
Самая самая (Reznikov & Denis First feat. Portnov Remix)
Самая самая - Reznikov & Denis First feat. Portnov Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65c4d1bc6a4aa8acd060a294a42a5a5391da9ee0a44e06f6e20f8a0b2d33b355. 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/RUB631500114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2147200a2f20de9eb823024282b3067a5cc7fd08587713c73a1fc852aefa22e6. 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/RUB631500112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf806ff807592140aac73db6c5e6f71f6403c3be4eb87237467d6678d0443022f. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/RUB631500111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3ca681177281da2a319e2b6336e3de07b25310345aa25403a08c23df27ecb3. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/RUB631200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b3938a8a9c72f44e6e6c0b74d2ff0cb8a534a10a28391fcda51a925c326f04. 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/RUB631500108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66edb400d7eb6d414fe1dcc7c2707ef1d129ae7b57cee62432f69ea70d4916bc. 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/RUB631500104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d751f364302f4ba0397c259261d22754111f3357269ca6ba911f01808d8f94d. 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/RUB631500125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7c26570f1c516f54e9491b979e1d7dcad600dc1acd38186aea22fe71dd90fbf. 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/RUB631500127.
Если ты меня не любишь (E.M.O. Remix by D. Babichev)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37bd7006342db7daf2d2228eb56b14a3339e7d63bc11a4f9002b2a5306d12cb9. Chain 2 (Bitcoin): anchored in block 957867 (2026-07-13T14:55:20Z), 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/RUA591901274.
САМЫЙ ХУДШИЙ ТРЕК (feat. Джарахов, Buster)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1477ffdd75740448937ccad9f4fc7725b48f2781ec94aef8dc6af06da7c2fae. 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/RUAGT2450065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x017b4a55fd6717046bd59241cc91dacd742704e9ec55df19bb81c178708d8196. 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/RUB632400996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb556b091c66cd55c8615b720ce8737eef628894daf258f499ac82f02256ce6b0. 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/RUB422104134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52f69984e118caefc76a2d91680bd2e153e922e0111813d5c361e07c4a91b21. 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/RUA1D2439276.
Ragazza Copertina - Giorgio Criddi per СIAO 2020
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3afe67c6259e8951190c10b2afbe742d147fe1f2cb0bd22789297a9b9923ec2. 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/RUA582100138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f8939f3a31e6862a9b420e3bd0795856ab2f84b635b8b04afe112bd5347987c. 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/RUA012100365.