Karolina may refer to: People Karolina (given name), a feminine given name (includes a list of people with the name) Karolina (singer), singer/songwriter from Eilat, Israel Places Karolina, Łódź Voi
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 0xfd0fc2c861798f6ac2e739509a54246d26755e1a4e5acc61b779732b231210b3. 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/99332a5e-ed57-4330-9db7-f21257431f74.json and https://artists.proofprofile.net/proofs/artist/99332a5e-ed57-4330-9db7-f21257431f74.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 0xf702971bc9679c3d0b0921f6d05a478a8bac4bf5723b6ce2307778d3db64a015. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/IL1020701850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838bcb6ab8bd5e4279d06ea1851c3456b40170a958e9b4b4eac01fbf295b79c0. Chain 2 (Bitcoin): anchored in block 956482 (2026-07-03T10:33:57Z), 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/IL1020701851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56be2e7a07d2f8c85471d0bf506aabe0b1b4bd44612f7b4c27cd90b440f0c241. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), 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/IL1020701856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff404732c8b32431950f43898c00fa3e4150ab1e60abc28ead702007a4d6cc1e. 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/IL1012000356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02ba996cd28bf7961fc9f66155b1445d284cd0afec922384c623b65661aba48. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/IL1020903170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39f714063dbcd5ca3a65257e445003b2b05d5c2a81bad6264c1c27d0209dce3b. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/IL1020903172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383c82b1e0a4e44e0f092dba3f9e487094c06a56842d553a06675e787e22e9a6. 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/IL1020903169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9435aa621331df39c8018d2084de922880cb3c1f554a264fe8328c191f5baf47. 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/IL1020903174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c29c700a9fcf052c7a23a9bd58198337e9cc1d0b8cc428a336b76d429978ec. 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/IL1020903176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e16a184ddcc91d800f317298db730c23ce5d3392b5dcefca89b751920e93f94. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/IL1020903177.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14a0839405b09df2fc894240fa2b6bee199ac23fac1bd62d18d33c62a086f22b. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/IL1020903178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0849c89025c3d700e443ef548eb853d338dddf068c4054740b284117c02d6aa. 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/IL5002100023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd75f4ff6928c10e73c6bf54023590fd73e9a9e268c8f4a3ece1953068716b03a. 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/IL5001200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e4b46f3df2cd05c3337c502e91d69422842623ad4185cf9c6e3e5640286405c. 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/IL5001200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a399ed7ec3a6d3de5dca063f07a2da036668c3476f85adbed679bb6b7f1216c. 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/IL5001600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7adbbb6ea14e246fd4f24eb101f6c71a3df01c08e3be0c8038a8f9b6f79628ec. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/IL5001600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4484584236fdba0cd6e0039fc7e2c798d7041a15f9f2a3414c51739efd9721b0. 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/IL5001600009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9835b341127ef4f83509980f709e931ff8ebcd653f591845bacb2b505bd73fb0. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/IL1012200033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf269933b6531e72dc5a62daf82001077fe98b82adbcc51d30d0523f7c6e62f20. 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/IL1042005505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80642fa1011d1b2d6ac8cc6cc55f854578335815e3e9ba77389f4441e0110d56. 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/IL1012400031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a9adbeba1f3b2cc8d6336e2618907e364a3c3e17a4ef1cfd0c59e80c986ed92. 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/IL3601310080.
עבודה עברית - מחווה ל-60 שנות יצירה מקורית
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x025664bf4cb212622d6cca5cea33f170ccf7b3bccff13dedfbb41b7ce515444d. 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/IL3600801080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a30752a2fab36aef9319893642f70f2a5c7d6a7205522a7ee079c4fe463911d. 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/QM9K31200292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x945480b1b2ac665a4f451bd38e045b73b8b3f941d704c070f531f54dd5befe64. 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/QM9K31200300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb33450117c2e03ff417a754819aa4194445a1d7e17b1e19be8e9daa86f9fa1e. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/IL6191400349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65d4ff07f036f315eec41892a36c4152a2dfb2e33d9b884a640a30dfc6ff761c. 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/IL4071400243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe25af10a61640297a595adb1b5078343d9bd2d43abd597e8e14e1ec66c0ca29c. 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/IL4071400244.
הדרכים הידועות - אלבום מחווה לחתונה לבנה
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6ebaaf0a0f0b38f8d14d6db189e3b10be19fe11eed7363934eece90d7903033. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/IL1000003459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8990c8e102abc9345ef42d3aa9c6c0d6e197285ba6e73cfcdab92d03eeed196. 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/IL4070901292.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ea331d4c686e655865f889b09b08cc4b7c447ceade26567ff788ee7882adcd. 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/IL4070901294.