Sławomir () is a Polish male given name of Slavic origin. It consists of the Slavic elements sława/slava ("glory, fame") and mir ("peace, world").Behind the Name: Meaning, Origin and History of the Na
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 0x4708f942d4fb5eb74af993564a457d0adda245547e456cc5adc11815ecbdca86. 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/ad08f2f7-5e7c-4566-b6a0-a7bf22d7b077.json and https://artists.proofprofile.net/proofs/artist/ad08f2f7-5e7c-4566-b6a0-a7bf22d7b077.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 0x7d008dfe683276c607ce46d09ff16775568a27174e21b7265f449e523fa62fc7. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T18:14:22Z), 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/PLN091700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe577ed3f779d20522111f202864dd854dd574b050828cf85b0be38141220bb30. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/PLN091700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8658b1962e873e65dff5ad3b94bde7eba29246c9e069df327af01354320abbfd. Chain 2 (Bitcoin): anchored in block 957583 (2026-07-11T15:53:17Z), 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/PLN091700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5cb9219f9bbe3dab0808f3b0cb7024f829f6a22e9a5d0d3d53fdc3d8733f648. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/PLN091700006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5795e0524cb2ecc158db09cbadb9abe5d34f7a59c0ea0bb9285a619ed5dda7d8. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T20:40:29Z), 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/PLN091700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5406c6b367c54c569b5dd3947f2392de6478e395eb61ef1992c502b3eacd2634. 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/PLN091700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc70b23ed71860210947b5c7a428d264a42703ac228274ea935938f6d15c425b. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/PLN091700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f872c3dc0d94f53d7fea355bb4b80a96ea6c2a989172d1a4e3fd54a6b70ce8. Chain 2 (Bitcoin): anchored in block 958590 (2026-07-18T17:28:56Z), 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/PLN092000004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48c0971d60b443d30c7805f151c301ada4d26ba03f30239ef4df7d7ac80faae. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PLN092000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c05fe1f0f2120d5bfffa041647b3f80f59d9447ea08fa8d326e8e76e0c05102. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/PLN092000010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6fa8aa5f2be931c5ea3e39d4461841d993be81cf3419b2421688a99ec818fd. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/PLN092000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4dcdd66d62cb00998f19fd17f52703be8953598982853e80606dc9406cb43a. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/PLN092200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0c7b0e771c6bcb2abc7ff5ec5306bd96033c27f85ad60c9cf77e6cb8c0de11. Chain 2 (Bitcoin): anchored in block 957591 (2026-07-11T17:21:30Z), 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/PLN092300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec3ce5a1fce24d8a94af6be1ee6f0b6eb832edc4a568c83d266327badbf610b0. 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/PLN092400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfb35f793a9c787254b05ff585c2d801a467329b5bba990113d7b4f3cd7cd235. 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/PLN092400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfff1c1824c0bfccd8a4ebdc3cb419054d70bad4ecd420e43c8810d06135e4f85. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/PLN092400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae4dcdd66d62cb00998f19fd17f52703be8953598982853e80606dc9406cb43a. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/PLN092200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccd8200605e70f4da20110a028a9247a89a77a4ffb0021ffaa35a74e30d4c16c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/PLN092500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af7e759db441a7bd3b7dc3c8614662b1874e3a7a9bc0cc012f252af0ccd6c88. 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/PLN092500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed0c7b0e771c6bcb2abc7ff5ec5306bd96033c27f85ad60c9cf77e6cb8c0de11. 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/PLN092300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb9556c3bba00791e33bee99217c6ddb2d6513510c6519d4f25dc3913ef7512. 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/PLN092500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6c82d57d6b6794685e1cbc951e848806d00bef5877e7ae0dbc16d4f38fb2d1. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), 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/PLN092500009.