Tomasz Makowiecki (born 10 June 1983, in Gdynia) is a Polish musician, singer and songwriter. History Idol and Makowiecki Band (2002–2005) Makowiecki became popular in 2002 as one of the finalists
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 0x841102e5d1b3712ddc614535f2cd7f6895f8023e2fe52349dcb40d4460782911. 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/0fe73e6c-efac-4b35-9a1b-d386ac39d32b.json and https://artists.proofprofile.net/proofs/artist/0fe73e6c-efac-4b35-9a1b-d386ac39d32b.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 0x4d5612b66fc99164d1ac7e1e336192f4171ae43768a6481af5de134ab4521af3. 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/PL92A1800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x141351338580c78b4ab7a27ea6ff5c6df339d0c26ec6812ca6d31247b240c255. 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/PL92A1800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3d26f9325216fbaf4e474fec862a19bd0d6958f6963c5cea616ab3835af99e. 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/PL92A1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d8cabce398842b8222ba9b6109d626a5b5d90014ade77e17d5806d456b9555d. 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/PL92A1800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e285d092fc956cfcc8f2092c3557170fd181d518053e00ec81923d74697f050. 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/PL92A1800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6768381852fce4d53a2c862e942bc9067432e35f621b31c3b420ce7702beb61a. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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/PL92A1800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c945481867d4ad37f19357d3f041e78326bf8e89739f58a16566eb4d2953a3d. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/PL92A1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6abbce5f35ae1a1c0e55188b44314ae2a8cc8a729eef65d0e22991eeb10f50a. 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/PL92A1800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ebd6b59d809d7f6944bbee78cbefc67bce86662911d39c385e1e2ab9955ceb3. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/PLUM72100405.
Nie Ma Nas (Alegzander Piotrowsky Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3fb6a5e918f6f0f5159b7046e22ec25d3d5019baee6e4a4a6faa11c859db35. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/PLUM72300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dd94178758f22bbb9991399b3aae14df75feec76f67be086bd5f7f1d50a18c. Chain 2 (Bitcoin): anchored in block 958395 (2026-07-17T10:10:33Z), 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/PLUM72300611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x078b5b402327f15121a2ff589db3ecafdd57e9409551c2475f5070e1041b670a. 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/PLUM72300605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7eb9a59cdbaf3b874ddb68438215db43d2381a204fb9f7ee6d60655caa91bba. 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/PLUM72400092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee3fb6a5e918f6f0f5159b7046e22ec25d3d5019baee6e4a4a6faa11c859db35. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/PLUM72300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8adaab3fc18c1f44dbd75a1d88984fc701a865fb0c3607b31f0aa21306f9ecf8. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/PLUM72300609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9515c4aefa7ee03674d5465fcb4c8d6babd01d042a9dce5b5047ecdbf1d76b55. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/PLUM72300610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6807fa5608a87af43773d3d8b0ba34172bc47f1073413df389ba7ffabfba251. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/PLUM72300606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6dd94178758f22bbb9991399b3aae14df75feec76f67be086bd5f7f1d50a18c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/PLUM72300611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fae6c9400eb53bd371e72836cbd2e08550728f264bb5c0756c3fb2fc03c4920. 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/PLUM72300612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8890f71513090f41eb058ae033d819b5edf63f388edd864cb881ee8282ad1106. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/PLUM72400093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fe65dbd00e4544015310bf03b872fa4727c81f487d19d0a704d91206636a4a. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/PLUM72300607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b26d8d371520139e5080b77082fc44e15c7204c2a3f5885a0e45a8852b976d5. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T10:09:30Z), 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/PLUM72300608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5fe65dbd00e4544015310bf03b872fa4727c81f487d19d0a704d91206636a4a. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/PLUM72300607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19f67947e99bb67005c92786a756a554eab0eefa6896506bca3b383ca589bf42. 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/PLUM72400486.