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 0x96d5f4248e590d78a3ffbf08b4dcbb8d19847b0e34b794502de16bf2eaa351c0. 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/6835229d-5ba4-45e0-b91f-a49b8fa92d37.json and https://artists.proofprofile.net/proofs/artist/6835229d-5ba4-45e0-b91f-a49b8fa92d37.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 0xf2329ea254e4f46c32770970fb034426481aa5367e9875f795f97a54fdea63d9. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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/RUA1D1616749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2804aaabcc2fc7ce2f1462cdc0bbb34e2c84668709da7a790a2349632523bf4d. 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/RUA1D1616745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbde92eef443f3bbccf7ba26bc5e6ca3af3f380eafc4eb9f92b5c14d8207e475b. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/RUA1D1616769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x190a13cf2932189e7cad390d1614bd6b307d3aa2a5e96d8fb82888d5b43d6303. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/RUA1D1616760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bfa0e54d6211c7f96bfb7661d6abb4c79054c77df9336f131b38b957bcf8085. 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/RUA1D1616762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75229c10b1876648393a0d7298c608f125b3d04b7092fe79625066a0d846b5a4. 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/RUA1D1616737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13bf261e24d6a2b9b8b9577da62320dd59862d9221a73c65e71c09a8ec0d652. 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/RUA1D1700188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79e5a21c47efe6f6bf75ca3212d275e7921399c0e008bb8ca83810712d70a8a4. 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/RUA1D1705190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9d5d86f972c96525bc24a13fc408421b6e3a319b7f5e41d6c26090ec350a49. 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/RUA582103846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1bde239e1335381c6819e1975e3ff431990d753e200968199d0aebd919bbf69. 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/RUA582103847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb45d4cf740c3ba7892783475af7dbbb72cec893e0f3812449cf7cbbfc91cf1a8. 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/RUA582103848.
Любви достойна только мама (feat. ELMAN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33279359d663a054b546dc18f1e79638e326b1cd51b94f0400d075001d7bb03e. 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/RUA582103849.
Передружба-недоотношения (feat. ASAMMUELL)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dd2c40a844b1c050e3bcd9ac7a2b10791d9a6aa0640e64eeeefa42b68e61fdc. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/RUA582103850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712b9735b8c776a4343730601e70277498bd6c503e9d87438ad7999f646313d0. Chain 2 (Bitcoin): anchored in block 958407 (2026-07-17T12:08:48Z), 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/RUA582103852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe82bf9113b547b3aaefff441029a0b3250afc1da21756e594ae7c47c535af52. 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/RUA582103854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf5b1a0d97d70ba5b6f8bad995cbb2a28aea5f81c3a72992844929085f8799ef. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/RUA582103901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e0e91483007ca288b91782f77a37f4738f18d1ccaaa64d29f72dfe601c2d077. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUA582103964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x161b06c6970e2fc2df9c32e36b09b812c01e118e9f18b2dd9c586c733fc18f00. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/RUA582104412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01f3079bc08a0bf12eb7eb79beea0458cb8c610f0c8b9c942e8b1c302e5e321e. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/RUA582100800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe03a32b5c4ff80f2271ce88677f834ca9cb8c42a686e4745dfee24a4edade888. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/RUA582106255.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe62f87d7aac1b9e153b9ef319eccc6417f31195fb0410a68ed147b223970f7e2. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/RUA582107062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf231e2494b8e6428d2a1336489958d91b2bff1d4f139e1433d9cdf46c350c1d6. 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/RUA582107330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1008c650ed2c614743d497276195d9261706d6651603c15149c613db1548ad. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T09:47:57Z), 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/RUA322200867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64f0a31261cea9993ec4e64ada28a641d097d4d38c682daf96d942c3af91c81b. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T13:22:35Z), 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/RUAGV2304234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813db0b42c0c34a60001959605a91a7046c3f8702756965c68fa518796e8753d. Chain 2 (Bitcoin): anchored in block 958992 (2026-07-21T10:12:17Z), 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/RUAGV2304467.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe1227961774c1776b188bebd6ede1884dfda9c20c0b6b379300d88e379f743. Chain 2 (Bitcoin): anchored in block 959013 (2026-07-21T13:39:11Z), 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/RUAGV2400869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cd29ffeb767b51c52e75f208d3906be1ff25687ba9ffe08f1444a6f1192ba2d. 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/RUAGV2403130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x496ad875135dfcd816143e4e17bd347fe471fdc247c8796bbec99a910904f651. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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/RUAGV2404900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2496809b6b76557424090c92314eff0b6c9b5e323f90e6f58f527d239dc5d23b. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/RUAGV2405160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9f8a047447000a1346400a66f682ddc4ec4b14f701ac70c92c0dd8e78a04f0. 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/RUAGV2406247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72296a376eafaed46d357501e8a3e71c9e4cab956c7d31decbd13e124ff96dac. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/RUAGV2407058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfc07f0b616c46108f8f60cb964f99f3e1276ce0b5c73f90bc8f66dd5e5a2ff0. 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/RUAGV2407854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43669a242607e7dc8809b7950259af117f0331d1f4b57c47c2d717b8f930ac6d. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/RUAGV2409545.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bae8df2960152cbb10cde211970c81b5a49f3e94bdb7289a2d863bbc4d74764. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/RUAGV2409927.