Urbe (Genoese: , locally or ) is a comune (municipality) in the Province of Savona in the Italian region Liguria, located about northwest of Genoa and about northeast of Savona. As of 31 December 2
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 0xc994e656cca3fbeaca023854857a27276980b1dab646ba5d8d9a332b2ac175f7. 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/f1f05f37-601b-4a40-b95b-96eaa48105cc.json and https://artists.proofprofile.net/proofs/artist/f1f05f37-601b-4a40-b95b-96eaa48105cc.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 0x27ddd3bdc5cb16de39bae50190ec0b8ee0c1a8e59efc14a97ea27d6e2a42c5e4. 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/ESA092318883.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x984493bcbde98ca26d83f42c0e9ee115d1a8d158628d191f71858d79839a2dac. 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/ES71G1309982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1ec6e8023fdc5d7e30b9c4328817a783e20d006bb9f6b2fadc9bdcee95804c8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ES71G1309984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9c24b92eaab748f9bdd34dccd7d689a304c578f83e4e7aac21f69434683294. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USX9P2044008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xded3d969fe83c0e4dce3457834d7d7ce465e3c26df5172ff5d1ef983d64e601e. 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/USX9P2044010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b9f3bc31ca42779f2ac50f31b4700ebf79a0d92a9edd3ad093c4bebef3539d4. 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/USX9P2044011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7e8dd106f33083c0ef4ba2a9e83a171da823725646b9e2351225480db38c2f. 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/USX9P2044015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b634a5c3b8e1f199e2f053de992c397a8df90955a7290b7e0571de2fec738ec. 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/USX9P2044016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313446710cbd1af81eebd7a56469ac9ff32a807cdbc7bbb2a04abd63bc92de56. 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/USX9P2044017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9c24b92eaab748f9bdd34dccd7d689a304c578f83e4e7aac21f69434683294. 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/USX9P2044008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d9f126b953326b1d1d146f37cf5dd2314adaa1a57898be619a0ccc1184ac00. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T17:47:33Z), 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/USX9P2044009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b634a5c3b8e1f199e2f053de992c397a8df90955a7290b7e0571de2fec738ec. 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/USX9P2044016.