Zeri (Emilian: Zéri) is a comune in the province of Massa and Carrara, Tuscany, central Italy. It is located in the Lunigiana traditional region. References External links Official website Categor
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 0x155a4f4d1edac923a5b067073eb232017fd69ed406d6d87a9636b18d5ed4a4ed. 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/dc2caca3-8d75-417d-872f-b2daf9a7e9d6.json and https://artists.proofprofile.net/proofs/artist/dc2caca3-8d75-417d-872f-b2daf9a7e9d6.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 0x3dc646cf5e654d3423de082870d1118c4273903c6aaf4e4c8ba391c31b042a5f. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/USTCY0903229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x809b8ad946d153cd0caccc342ab3268a0236ed0ca094f790be00a6c06f3f1bf2. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USTCY0903230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13da31893dfd695c8eabcb63dac4697f537d434790ef66d9f9f377408d0beed3. 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/USTCY0903232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc8e2f04772be2572356e88b4bee56741acbb9824693ffd9b34cc7b97331fd4. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T11:02:10Z), 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/USTCY0903234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d9220fb7cd99eb9622514d0b3747993376e54e3af1a8f4bd227aa19266a0bac. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T11:22:13Z), 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/USTCY0903235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb12dbfff1bb8f31c2afe58749d3475e6ed680de12ee4b4bdcbecb0a28a33417. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/USTCY0903239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dbc525909effe9484c3a2167ea484d50c2b729ee53248a8c65287356690c127. 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/TCACJ1571850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55dbad6ae95225f2047776c3a81aa2c13a169e5a68be491c54244164665e3219. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCACJ1571851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbf63b6bfd9a1df4faa35c4b5f2019788684fe2bd43a4fb1cf298f643155809f. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/TCACJ1571855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb93b25438329f9ecdac831129566cd85a610bc55bf088f1f55d07a88f117a0b3. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/TCACJ1571856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa54ac9761a5a139c8711c3e235718b5434c93d972e82f97e341e7e16b3b34111. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T13:23:53Z), 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/TCACJ1571857.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3e294537b4f134a4708d48bcec37f66d178be3b69e8de04b5bec33ee38b4f34. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/TCACJ1571861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dfad32308266f4777c9057b864146d71fc02dda09d835114aa8b504625b3dd6. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/TCACL1654604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe701ca6d869c7ed3a589793d2627a654e3db77584e2dcf276754dad9dfa688c2. 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/TCADN1821789.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f7667904b0adbe4aa3ed0e7da12daee8bc1d1a8ed7f443394b4badee57e3cef. 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/TCADT1866915.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8630e7be27289d4502ae4a91f32943c3ef52cbc92f237348aa25a713283c6aad. Chain 2 (Bitcoin): anchored in block 956637 (2026-07-04T10:56:23Z), 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/TCAEA1985458.
Las Cosas Que Pasan Por Mi Cabeza Mientras Duermes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf346304f3dfd8457653f11e5d97e05f729c3e7b732191be760ef3f1f1c7d4656. 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/TCAEH1950730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7860640d674833421a68c1b739483e68d89e022f1c2dcde9efaee5e893d575d9. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/TCAEH1950747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb15167a93264279db27ef4aba52615c8df7cd4bdf7eadabb5a2469935b699b95. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/TCAEH1950757.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64d94a2c10bafc0e5f04680347ce93c9ff12069d9b1b8dbb56938b956e51061f. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAEW2043461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf30e360abd6cd6c87e4dd9be7f79c81abb3c14de8edee9cbaa798826e553bdec. 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/TCAFE2092745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e9b633415de6112da59f716673584695d4e47a7058288c592a2d725e3ecd65. 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/TCAFN2147157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2a234e54a1179162ba51e9c28cd200b6927f4770e921072e4692006bb3dfd52. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-16T01:22:00Z), 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/TCAFN2147219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa47ba23086aecf5b2b6cff8a9ab13ae0dc535a4ef6f41eda0f6ad1b3c5635747. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:22:28Z), 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/FRX872116581.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1086ae55b28a16438d300701b17fe8a7f57301fecfc0c912ca8375620be53d68. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FRX872290749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91fada78f5178b65246a0cc9afee23c50accfb7a6fc80adf2ab06c21d57bb7d0. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/FRX872290750.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x841e0040a27ca4f733213f34fc131f6fcf236fe80260e345314590a2d09d8859. 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/FR59R2246371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9769168bf3992b9b8afd55922a58a39831531e830341b6992ee71ea85d62f97. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/DGA072232181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5389f41a32b18461d814b3486d54e01f4bcf1a581faf43fb59111cb91544e85f. 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/DGA072232187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x169faa1269f909e85148975c7467e31f8bae587a99fc6a3d6bedb2875d57a065. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T10:33:52Z), 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/DGA092219125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2c372dbd97223f9742b256f1c25163f4c4961ccc58bc14937caa7174ed39c6. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:00:06Z), 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/DGA092219127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x272917b9f13f136854d960450cf2132db998a702009e0a0dafa2bbcbbc054597. 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/FRX872324403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51081389e10d48bc064640314d142d4004f2cfd9f83adf865374a3f9f5c270eb. 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/USL4Q2452849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabd1c2aee9aed41138fd1be0a0d6aff96d3e2f4e9cac026d11310beb5d45d343. 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/USL4Q2494900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37334171508f96926a8402bdaca8f1c675ac59490ee701d1e2b54475838bd68a. 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/US3DF2415071.