Stare Miasto means "Old Town" in Polish. It may refer to the following places: City districts Stare Miasto, Gdańsk Stare Miasto, Kraków (for the specific neighbourhood, see Kraków Old Town) Sta
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 0x6509ba32d85c145991895a7f6dbc4240f33c215df041c22990dc9b5718f70edc. Chain 2 (Bitcoin): anchored in block 953710 (2026-06-14T23:32:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7fbd4410-cc3b-40fe-a5c0-237f6fcf9b58.json and https://artists.proofprofile.net/proofs/artist/7fbd4410-cc3b-40fe-a5c0-237f6fcf9b58.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 0xbb746bc952bfbae6cc15fd285da79a6176e166d9635030ae1ef7d95270d016ad. 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/PLUM72100584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0efaa9c077016b61c62fb3f80a379d5bb3ecce10a56a896728c981ed37ed9440. 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/PLUM72100587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aac0166f847b4e84bd9b63c7419f709c87f9c3cbda471efd13463265f3b9e45. 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/PLUM72100589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b5182ea598bfa650ca3fbfd6b355db509b548af316c802cce97713071f31f4. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), 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/PLUM72100590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x534ed8a3f0c91cf39e6a04ae39ef188cb1d84fff8f0ab0bedaa720d9709babf1. 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/PLUM72100591.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f00007ee0eedd6669f2fc728bb4dbfbd34c721b2af0cccae3a24b5066fd91. 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/PLUM72100593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90fc67a541793392c73e7f5c93a8474aa100a06d86955c9def963cabaa1ab97d. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/PLUM72100594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf0f4cb9cf6345d9aa18ab3722d20c179b8ff271e093f7b3621eb57a310666e6. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/PLUM72100596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x349faf825256d799bbbb79dcf0c0a912b3dcf1b23712bbc441a3b36021f32803. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/PLUM72100598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849b2792652af434dec5671aba8b2d781ddd031df1c918e843b4be69cca7120f. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/PLUM72100599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d0045d2717ea48d31432eb289a05670042b540ef75830f0163eb17d23dd9ea6. 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/PLUM72100600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2165303aa8b22103b65dd1dab87d36c91ff8ea41a92a0114b158d057090caeff. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/PLUM72100602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8dda0c4535cbf10d21d72bab8fd9418bc98ed8bceff356fe1cbe81c14765c93e. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/PLUM72100604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13601d543a868a64fbd0b3c324ee73642bdc568d43d085b18087e696fa968673. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/PLUM72100605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67bf5db0c6fd16b87568e23ae37b925135de72cc4913c169ba11a330b9487e06. 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/PLUM72100606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48ee278976bc0fd1c8b6c8bec0e80a3ff9a1da3a2fc3f54698f4dd9626a7bf86. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/PLUM72100570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a3eeb5e91a1415996406c59614d2bda34585fb5a4fd9eedd6aa4c60effc33ef. Chain 2 (Bitcoin): anchored in block 958561 (2026-07-18T14:22:01Z), 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/PLUM72100571.