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 0xe23d8dbfd92672c2202bae8b3b7f6fdacdbf3ec688ce3ae348cff4afea7fc295. 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/f0c3d888-0cd5-42c4-adcb-dfdedeba23e7.json and https://artists.proofprofile.net/proofs/artist/f0c3d888-0cd5-42c4-adcb-dfdedeba23e7.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 0x92f51f9422eb3efd07015e412d755199d7d8a59a30a83089d73b020a7097e576. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/UAME11830009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65bd27a86d85f3cd30f7b9f51a426c6cb7c0146804bef885a70cf267540a407c. 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/UAME11830013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x042e10c1ac23cf16e0244707f965176ef12ddf80cb5cbe8bd25232c803097919. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/UAME11830018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5384a4eb72f71d9fce6c3e636934bad0bc351724e268840fed1f0a3ec9d0aab6. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/UAME11830029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x343e95a390c711139060035f39142165b7c529717a2a0fc16ea9e4005c9a9a0b. 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/UAME11830030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68003249bc4b769991de3e16e057970ec2a8ed1b3d6f5b749ad2bc897acf5e82. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/UAME11830034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7c85470da4e59b517c0d9c83bdf56c159d3c8052a65c35c3a72c02e55f38f7a. 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/UAME11830048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x652e0e47211a63fde1504712013aa4faf1af40fbca73edce8c51ecc6d0589bca. 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/UAME11830051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b946b03c0dca59b5a5445ce9ee11ce1bd60f68e9c93b903bbcfaaa3d0a17bd2. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UAME11830056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde3cd2996fc56cbbfeb17e6afc01e6ee852aecafaad45e3c7d9f5fd7c70ef4a8. 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/UAME11830039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5553bb41aee38c58c629a9571ea556e4c62992f9c9d505b1e5692cc78d45fe0. 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/UAME11830040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56945919683f7d99c5371b528fc2b48815556dd6fef39bf3090ad39e8525d69f. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/UAME11830043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72a9804cb3af194b06daa1e406f31fdeed5763abe3338e028c6172148da89416. Chain 2 (Bitcoin): anchored in block 958111 (2026-07-15T06:58:20Z), 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/UAME11830044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69fd066cc0647c51dc9fbdb93e4650e530364c1c0b2b19180e8eace3be0609ea. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/UAME11830046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d409a631302ed8f16e25eb0c66c4f3fc14021d7f4000795d094671932454b3e. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/UAME11830070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5abaa30d6ae98de0f8ae6f1edaf09e1e0c8a54d96286c215a9e8cfd709fd4d4a. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/UAME11830071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1a1a5b09cfa0dafe5b45d62e1f78b2e159bfa2eaf720e8d416b111ea77cbf1. Chain 2 (Bitcoin): anchored in block 958531 (2026-07-18T09:39:18Z), 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/UAME11830107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36f5919875b3784c022ae137108bc3a6ebdc6d7779ea12b6841c5f996d9b047a. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/UADZ31910032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11fe5c7ad0af40a1af914d6fc2f1c6fa12ea2d971dc2fb77f9ec3b68f1e0ba0. 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/UAME11830130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f1d3467dc2b9abea9336e6fd31f7748e06ce898e0031315e0dd3848bb0abd2. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/UAME11930006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4146298657c0b048d47ead70a43aaf550cfda494a12ca83d7d7e89a35264ef98. 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/UADZ31910014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4976c2e7c0a5804a70340b3168c12ec66fe89b81a0c18fbe7d39997a8ed05b81. 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/UADZ31910015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0335119fba782b279b4caf0b068b9e0c12c82d68bddddddc24499e399522e3a2. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/UADZ31910017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f813f2e5d59567ff7154131d6bbb366ba22046609b2fa9ebf6fe15810551b6f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/UADZ31910018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfad604c5aaa03274880bfdb6e5337a7ece63838633192327b9bc5c5a867ae84. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/UADZ32010065.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa93eb59b78c128e8aeb66e07c8617e932cb4c7e0fe58e908acbf496e74e86544. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/UAME11830073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbec25a1b267045acbaff67f050771097303c7fb6556163068072873ee86e80b. 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/UADZ32110065.
Чорнобиль форева (із к/ф "Я, "Побєда" і Берлін")
Чорнобиль форева - із к/ф "Я, "Побєда" і Берлін"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4566ce2c32d99cb14ef54a42b06ae5277606cc94b58fecb82d9ce38d0121872. 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/QM4TW2229156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd38b936b767e0e7bbbe5d18c6af14f5b8434ffc01e58b0ede4b421be66c327f8. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM4TW2250885.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fed11c19165fcf12dcb96e32782fca691b874f5acb758bcbef18b4f8578f9b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM4TW2250891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7cf145415286b6b2eb485523c022db6e5b387e7a09ee33d5e8c121fd02efce. 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/QM4TW2250894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0502acbaba39f788d1520c87c5a03f9e71ccc91686a82bfdd4c9fd57bdeb6243. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QM4TW2250895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bfa342549d912eeb32b06c2e1bf94e3792920aedf7042483174ad449464e257. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QMFME2253715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x537b4a52b3dbc4ef7d3763c142c4b9d6910e403f85e62cd1f107f73b8cb87baf. Chain 2 (Bitcoin): anchored in block 958587 (2026-07-18T17:06:26Z), 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/QM4TW2391555.
Death From Above (Original Game Soundtrack)
Death From Above - Original Game Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd854407b3617339889eb879724e6ffc7259c13367734130c692275a18be679c0. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/QM6P42312792.
Мій сокіл / Death From Above - Original Game Soundtrack
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cd05acd3b38cb381ccab75603a95d01d418b9a3490a675ad356e9a67aafe24. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QM6P42312794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f071ae2572522bb5716c2a9e817c75fba82693c8ef6b5006f595bd3241adcff. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBAHS2200610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f071ae2572522bb5716c2a9e817c75fba82693c8ef6b5006f595bd3241adcff. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBAHS2200610.