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 0xd86222e9fc01058eaaee0d2d8fca897ed24af03937652b8f4afca724cfb02647. 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/6b7ffd7b-1d1c-40db-a45c-cd668511ee9d.json and https://artists.proofprofile.net/proofs/artist/6b7ffd7b-1d1c-40db-a45c-cd668511ee9d.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 0xef183fe682a494688d66d627e002925ba8d89829f38869eaa5e25274be8e681e. 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/LTA050300043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd5fef6f59de787e72a0c6c6cbdbb0c91d4651738cef08f449bd14e136d8482. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/LTA050300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe942680befda1c4e47801d3206ce1c6905da0e1b0f3248e6430f24b268aa96b. 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/LTA050300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb402df61d9d5a617454aeae41c7d2599841063bc818d766b2af2fcc5ea58c5. 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/LTA050300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae14f517d468b4afb2d21c28fb04610a84ee6d27bcf77947136386f8b7dcbf1c. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/LTA050300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x668495f7f40639a47d2097ff430011725e0eb550ee4b23e64337a3378a36ea3a. 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/LTA050300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42cb9f0be649e25a43f025f690daf507be420c04fe10e4747df1c3c72ab250a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USLZJ1817690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4903f245871bae66439020a28f000312ef2d8fac502b25a274efb50c3b605a0. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T00:07:05Z), 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/USLZJ1817696.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebd52998a2b8e1d7df9d5d2cbda5e02a1394f40b3a14d2917575188b9710c1f3. 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/USLZJ1874959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1cbf2f37b2afddb5aff5aa45f2e38fd0da84f518cf23f75b91f2c351bac2db6. Chain 2 (Bitcoin): anchored in block 960277 (2026-07-30T16:10:47Z), 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/QZFYW1929475.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822333344a54b0ca665f103fd3f0b7805e2140f6b6d6b0b0f903d4aa8fc5bc5a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/LTK492100001.
Visų Laikų Populiariausi Šlageriai, II Dalis
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451809167ce7a25053326a5df476d4ac46e9ac809f776f2a150cb88ceb723a05. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/GBWUL2065906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaed0326298c22f89b98a1ff20e7a9744ed3c2e00b75618c8ded23bc7d39f97e4. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USLZJ1822758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2e825b9b2a4a3abbf785c714b2ef8447f9d07f722206723ff42724f33c732b. 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/GBWUL2066699.