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 0x165907dd0e563d06fabb82deb0f177b3d4c4435406d3d72244a77a40ef0714b0. 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/48152dc5-d838-4441-8e8e-cc03c9ff9eb0.json and https://artists.proofprofile.net/proofs/artist/48152dc5-d838-4441-8e8e-cc03c9ff9eb0.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 0x67247b2343238ce14fb21e6bc4ce24f241e526a7b0bac13d804e1aece8a05186. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/AEA0D2029149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4d4be31f0e74aad5ef4fa0cf9722ca7c0efe31f45dac5d6d23ca5e2b28c16a. 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/AEA0D2029151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e32bd6c85d8f472bad2d35bb2c5bc932d2465618fa50ac360b1644aeb01ef0. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/AEA0D2029154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d22beed5d6bc9b193385376afc3ade6e28e07be8a2ed5bb7ca690ca7bae62a9. Chain 2 (Bitcoin): anchored in block 958399 (2026-07-17T10:39:51Z), 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/AEA0D2029157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2116f052d133974f5f478636cbd5396fae6cbd66c0ce9a3581868f937a5e3cbd. 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/AEA0D2029158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b4eb7fb2c3b91b7d884545af6700a498d25d97950e38ae3fc4676c34522fb9. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T08:37:45Z), 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/RUA1D1706351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd49dbe3326ccf7c85a84289ec134c844019c1a54720c60f8a3fd0ef9677da14c. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/RUA1D1706352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5678321ceb7b0964864d4cb3fc26d9e5ac229b7746eed26bfb9de913603666bf. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/RUA1D1706353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd801d0ba2734deaa0e65bfbc1c28be3105e402ef726d4c06ff0671634a829f9d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/RUA1D1707338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5365ac9e7964ea48c6a9c9b04b83ecf6abf44ce63c54eac4765b4ae26ba306a. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/RUA1D1706342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3899cd1ded2ac91ed40b2b96f8e7a17a687c93169d3f1362b4a67b7165c663. 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/RUA1D1706347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf23388e8e2cbcbbdca385ea33e30ca8ca4fc6760be99909085bb40b44d5fe700. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/RUA1D1706341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e359471c19be231fba48435f13d34edda27ceb6c0785aad7f3b5858ab10af1b. 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/RUA1D1706348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x626ce3d78cfc155eca67904fb8e325ec16b55c5b3af594673f02682359b2d2aa. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/RUA1D1930871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x475c1562e76de62cf387ef24778be53f92657cfcc35ada39decda1a1426e0fee. 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/RUA1D1930865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f933fb5235db00d179e7fafbf228da5638e8744f29297780ef5d6e5fe97726d. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/RUA1D1930868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74fd2ca855087ebd1574e97db4302c306ac444fcf786de0215b315fb16a17870. 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/RUA1D1930873.
Дзе ты ёсць – там і свята (Live at Falcon Club Arena)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2cabd1f2420d90bb2b5b4d35159cebed913d611cd181f06aed3dff0cfad0aee. 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/AEA0Q2023154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ce12387be7bffc61be9efe56d8878379763083eadac723b26978c624c9603d. 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/AEA0Q2023163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe840adf6925d9bcc1fb5608bcb78403dde31d7d0cd55d01ac510f48e9683339b. 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/RUUM71901019.