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 0x56474cbe2b8e5cca57db5a72ed35fddbc7439eb7e718787824b043d3f8a65290. 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/f125311d-eb5e-4383-959b-e7cad3f2cc0c.json and https://artists.proofprofile.net/proofs/artist/f125311d-eb5e-4383-959b-e7cad3f2cc0c.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 0xe39b07597900695312e49a7c8978fa13e81dd1930007f09623e218b9ad3b4976. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/FR10S1418741.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64a82f3e91df076eb5cc76f23bc911c2131b4ed459cbba2b182d25e923e53b16. 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/FRX451510715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bfd38e5e160a43ab8c04e95807365fc43e04f7817f7e3abf694f96a7c6ed8d8. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T08:17:14Z), 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/FRX991547711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c47f3ce7d08909625c5ca99f30abba2d9ed1536f67c9adf7f8901642c6fba1e. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/FR2X41601647.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5081a51b9da59d9fc907a118af5a061cd22f0ff8746485bce3159b5045ab3149. 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/FRX281737665.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x479fa746f3cace4b08ce6aa812e81641384daa4dcb13f5cc227f7e384c73efb8. Chain 2 (Bitcoin): anchored in block 958889 (2026-07-20T13:24:39Z), 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/DEHC81800201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb0d0752455176b60266fc1014d4e0d6bdb1718c931051a268357c3b0b5c9c0. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/CH6541969144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x915be3ba8297e40c96d731b61daac553f9836536b231748e168b6e29ccef2a49. Chain 2 (Bitcoin): anchored in block 960419 (2026-07-31T15:20:33Z), 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/CH6541969145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d3a4f9ab95e8adc023c9070c110627cd91393c2bcf6e112f40c96b93c77299. 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/CH6541969146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc10d88b74b742c4ea2aa0d2d1f3fba03b038cd71f1a9611c2657e435626dcc9. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/CH6541969147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x683d66fc0728a9634f79cb96169b902d526aaf428a543aca98c4bc57224819c0. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/CH6542049161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ccb37aa9472c88750bcd63c91e6edc5c1b7fee352a146799ad53f36c8c2725c. 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/SE6SA2066483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4909fa06372cdc71311692b1d0c6629c1961e5c5eed8c6a99a4ae66375430cb. 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/QZES92250142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4909fa06372cdc71311692b1d0c6629c1961e5c5eed8c6a99a4ae66375430cb. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/QZES92250142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x231ad6f8900d15fae6626a956b9f8e2ce7f21f57000575185ae5894f958d3254. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/QZK6J2257795.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x205c17b97b0803447281c381d4eec45ba16d373a048e22febdef1cfa6be57e13. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/QZK6J2257799.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96d780f49acd4859ebfb8830eb3d94aab3c23d3a51200ccc3199e222e10c35e0. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QZHN32229810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f30ac9354d319b227eaba625b686f758331e60edbc046046d36b691b69d7f47. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZK6J2257793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3b1323b1b0938cbd0ce92d433ff35863743e4cf8065664c255be66daee7ede1. 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/DGA092441681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca3a243cc00bf7719c303150367b8000141f7b8ed465e56c944840c24c24b74. 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/DGA092441682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff8071a7fd00a353a92f29cc7614b4ebc2c449d8d15ccaffdc65347fc58da1e. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/DGA092441683.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9315257a15e8964d52bd9bf358416a2150ed7e34d714beaa5aa310c2aa75980. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/DGA092441684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb187b02ee2f981e68cd8872f0b4ffd8d75efec79a6da68cb6409176b67bbdb56. 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/DGA092441686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeb731ec0db669d6e9fce963798f9ae09e7d7dfabcdd950d615f666c4ca7baf3. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/DGA092441687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e581c4e906fd9d81ac76c51895aa3ad80afef7f5f378e67a24ec777a2764154. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/DGA092441688.
Kто болен в городе? (SUPERNOVA 1006 remix)
V​/​A IC YEAR, Vol. 03: A Selection From 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e43717b9f5b48ca99cd841b9856c7691aad2d0c898b6ad7002f9f97bd25a34e. 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/FR2X41601652.