Justyna Maria Steczkowska (; born 2 August 1972) is a Polish singer and songwriter. She represented Poland in the Eurovision Song Contest 1995 with the song "Sama", finishing in 18th place overall wit
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3650fa7efcbaf159a9726fed80d6ca31f929bb96a3fbbb50491dd0e3898747. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/15470470-b807-4ebf-b3b1-10d9e4fd01b8.json and https://artists.proofprofile.net/proofs/artist/15470470-b807-4ebf-b3b1-10d9e4fd01b8.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79448d9f375587ba7e6ff791402a5ee762293ca8abf29beae9046cd9373b7400. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/PLA552100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bbf1a7f51affabe8b181c886d75fa00b9bec9ac0dd2947cbe54a91f860d5a88. 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/PLA552100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd4429e5ae89b65ce4f9aae914e9d4223fe3216824cd4fa108589c786b3c130. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PLA552100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5199f9f7a3287b5d049dbf6233f61e12f0933a390c1d4b532a71263cc901b5d2. 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/PLA552100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb67c27e94534efba8cbb49545b6beca09bda87b769496cadf9cd73cdcefe9071. 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/PLA552100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88f9bd57bdeb0688fe1acecf88d5c0335dea23435b3bb9afd0cebe64b2c1667f. 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/PLA552100109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76418e911a21c04fb84ea6b98d7043751261b419de2eeda4dba573c0e4fb5ed5. 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/PLA552100110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8dd2c3c91b25684c0ffc82ab307b5b9625725d80bf105dd84e1328ab7a56714. 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/PLA552100111.
Dziewczyna Szamana (wersja domowa) [2021 Remaster]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb49a0cd6ff24544577a4d29dd780d21b7f8833527f8df89d91a6165f66711e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLA552100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75c60e845eb96766b5b14b5917f066c950013f7a8f3938eadd3cd9fd5ad2eaa0. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PLA559700166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9100151fe1568c7be2dc0b47c137052e552b942fb1134ab43ad94624565fa99e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:01:34Z), 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/PLA559700169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf399b340d0bb10b040e458be9fbdfc2c3f16563b55de75ef9e6077accf1cbef8. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/PLA559700171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05e13ab2c2c7b503dac7a3a8ecfd14b218c27241b3527bcd92b647f2ddf03a0. 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/PLA559700172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bdf59445b2739db51b98addbddf505d6f84102725a29a6f7c3399ebb7c5f797. 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/PLA559900266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb05e13ab2c2c7b503dac7a3a8ecfd14b218c27241b3527bcd92b647f2ddf03a0. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PLA559700172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64458d683ed459294f7e1490d7f881a700c0f0c36470e289a004bd0f0e465648. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PLA559700168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c167453c8b4e37e310c217e82d1aeb40fc8264892368446024bdd147e7cab5b. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/PLA559600087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3597cb75f86b893c0c24a268baa60cc8fd5d913c9755572947775869fedfcd. 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/PLA290200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8decb46f327527e21d28144ef75c7adf93ed1dcb74603de734700e42b51cb739. 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/PLA290200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef85560336cf4fdbbf58b1f06282226d32380568b63349866c311b2a12b8b266. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/PLA290200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97d4b0e1b9fd0e3229f4d7f038ed54c36703f685883274cc2ad83a6ab15913c2. 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/PLA290200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1cd2516e13997c57ed8017a5fa03dc7a40970385179656f8a9c0595987cd082. 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/PLA290200017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd84a96a0ed209d95838742e53e8cc0b22133653ca82d9d13a01c773108f12fc. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PLA290200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9c7f53cf5d2a95714d4cdff3d48c534fdd3e0507b10ed3b0a86a755f2260ad9. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/PLA290200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa699c76db709c8df77a0a9b641d21091310adbc2f606ad0770e5d0321c08f8c9. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:53:51Z), 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/PLA290200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x737baa7d396dc68c5a923507e8489507baa664204cc6d7a8300a0ac72b08881b. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/PLA290200023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b82cf434470803a7135646bf383d5c1757363815d6333dadfbb4c7c3867a2b6. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PLC062114518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1db5e69a370a2fcae1cec600da240fb90c83b52c9ab9710cfd6f4aa25ef85a79. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/PLC062114519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef1c7cb31cbd1c89594aa5869025b884cc766fef4353833984fd52076a67567. 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/PLC062114280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ed737d993f223c5b1c6aa6738afac57660c76a26443c4f7e51928305b79909. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PLC062114281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2291e782a9449f75d371f097a984ff4281672308362e0d08cce1f87a300947e8. 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/PLC062114282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8abc88c06b56750c7baacf7e3ce740f63a780f57ce5ea179ed0bf4c9a38082. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLC062114283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89739af4119a155023c9f20488c18cd3f6b4c1f3ddb02d116f85c36caf1e29aa. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/PLC062114284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a7661c170fbad449b69219f80c6aaf07b52b2a75036aa7146fe725eaebdbb0e. 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/PLC062114285.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ef6fd1b4f98575595f7ca33dd1f8c8d0073c9ede51b948243bb4d8b5c27c6a3. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/PLC062114286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x956138bb6d1f6bb8d1d0a9944edfd325fc9ae550bd0743bb3084dcb698df34e7. 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/PLC062114287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90ec4060a41f02defcfee68f9b7caa7b384750a9529fdc72b2bdaf2440b1000c. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/PLC062114288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc02b8253e47f978d620ce25f8d9ac88f85a8f4653ca9d2b79c0e5b519ede2cb3. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/PLC062114289.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03630c0652425e27b64f67bf1e7532691843e259e482bfb7c2f9aa1e37e9692e. 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/PLA550900049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc366fc1a56cab605534a671ced24b82e44dec488acb7b8146601a5297bc3940e. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T21:59:54Z), 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/PLC062113099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe166d021a20a9399452156a559c430cc753aabd98d12aad33b8d57ae567f961a. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/PLC062113114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd94434c686f1f4cf1dcde41b3cf67907faf45c41234a4f11592c152975d2446f. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PLC061403813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4868eb20e8bc99876f7182794ef7df9a4f7e1cc1a5f66e686060b9ef2d9595c. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/PLC061403818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2718b31125c81eae317d48468c35a1375f78b0556ebbdca3b672f0df6768412. 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/PLF391500330.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb44d2edfe3cecb62f7a77e11535304432852d812aba19079560232cf3294de64. 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/PLC062117751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a72d623a908ee46f80dd3757757b6119d335e12a1316a46b175b04889ced3e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PLC062118839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8869348ef18a207e70e8c54fb8e8b407eecb5acf407bd440c118e05df43e349. 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/PL60Q2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8690728872f603f1dc5e9f4ec142545941b16b8352dd8e321edbffb433beb8. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/PL60Q2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff213c27db034a3c826f6e96b358c0b636aa02cd7be31b36bbb723eb96fd2e6. 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/PL60Q2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x971906b9cd98c92ccba9120fda8997f8d664d946b7d5af4426741de9d1a24704. 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/PL60Q2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ff213c27db034a3c826f6e96b358c0b636aa02cd7be31b36bbb723eb96fd2e6. 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/PL60Q2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x789941fea2a21cd22e12647786908c77884b7b8314f725b6c4c335d2fd16dac0. 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/PL60Q2200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f895267647baf66831ed33c2cffbf5b3d44a7c03b3ad139ca65259917d096bc. 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/PL60Q2200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8869348ef18a207e70e8c54fb8e8b407eecb5acf407bd440c118e05df43e349. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/PL60Q2200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0abcf873b06013d8ae92e9a30a2ca8d1e3725c7bd59b8e04d95557ccae15478d. 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/PL60Q2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x502d095d6f488ba23ed9fca5cff786519badf004b83fa6377322d21a2acdaae8. 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/PL60Q2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8690728872f603f1dc5e9f4ec142545941b16b8352dd8e321edbffb433beb8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PL60Q2200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd677e52a32701c8f44e5ae3e70d0d8963cbe6569f9ae17612be7886a3491bfe2. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PL60Q2200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc976f55adf266f556b1b12c51412a460e0396d7b8d773ffdd3bf975b731d954. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/PL60Q2200012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc31dedd45029570d0c3f062735aeb75f40f8ed1b18c1cce3dadfec0a6001a49. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/PL60Q2300502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7ce531e5a157ec6ae2129b11881b8815da3565393bb02a10f0733ef8e706eac. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PLI362477178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8fb36f0275a565784cdd7f2edf4c3e67e6ebadad8f966d281edd9216c8d5180. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/PLI368686890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ba8b9850fcd0a22b7ed631d80c857889d81e0cca5de04f85312962e3e87043e. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:43:13Z), 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/PLI362477182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15c18106e85ebfe2e81a03510c5094d442ba16e0d88102b90a6f1bfa9cc6e62c. 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/PLI362477184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e7e271c8d5a061fc580a86cb78e67d302e8229c8264591384e52fdb375b0084. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:08:52Z), 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/PLI362477187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc90face2a355784a7b8d19a3c8f998c994774bd9c080e1d7d407495baa5db3fb. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/PLC061706184.
Grzegorz Ciechowski - Spotkanie z Legendą
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60587a6701691bdf80d75aa885234aa3193d5389d1c11890cd932fb8ff65606. 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/PLA391593205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9fde2b573c2dbd20e2e0e81e87bb6dfdcec15ebdb8d37b792367bdba2b2dd8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD12216946.