Galeffi is an Italian surname, possibly derived from or . Notable people with the name include: Carlo Galeffi (1884–1961), Italian operatic baritone Ernesto Galeffi (1917–1986), Italian sculptor
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 0xabb23b1d1f398b2c0a4ef2ac848d4a1d3dd7a49352651d13844f9e484051c45b. 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/8a660e61-fc29-4ff0-8bcb-1324765db30a.json and https://artists.proofprofile.net/proofs/artist/8a660e61-fc29-4ff0-8bcb-1324765db30a.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 0xc8950b2f217340899eb3d5c9c662ff2c039b52f0ab3995799000226fac85053f. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T07:04:45Z), 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/IT8U11701905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffa5ed0453238241d64bcc37520cde333ff6a89912d812524dd4b8d51fdb5a3. 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/IT8U11701909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe63e0467a6898814b40b8452a46263e32490f3da80f527308d379fb983dc4dbf. 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/IT8U11801912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aefcc30d423cf61b3bc87d0e25c643a3a0059f61594d5d5f96a187a8e95a022. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/IT8U11900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x283b3cbaf52783750a3b207d2ca4f449a9bf7427816f0f5f822289f17d53a292. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:31:32Z), 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/IT8U11900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8022c5c664aad9e9cc49335da17f6db99f3936427a3b821f06be4de3a8c4297b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/IT8U11900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c81e0d50eca0d95f9e67b48c9d7ed84d8f46b75ba22833c474f93e50fb5f56. 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/IT8U12000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aefcc30d423cf61b3bc87d0e25c643a3a0059f61594d5d5f96a187a8e95a022. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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/IT8U11900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68aefc1ec38032cdef2c3edf5c413bf48326be3ad109dd7fcf5749eeaacddb48. 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/IT8U12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac50b28ff32decdd4bc7ca08e2ea5d6d48b9f9d9f6ed564a306c562f35017d41. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/IT8U12000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd918be6b456d56ef5c04277d8c32c20c12e8000a0c1334a787a9c531b645f2. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T08:03:31Z), 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/IT8U12000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8022c5c664aad9e9cc49335da17f6db99f3936427a3b821f06be4de3a8c4297b. 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/IT8U11900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5c81e0d50eca0d95f9e67b48c9d7ed84d8f46b75ba22833c474f93e50fb5f56. 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/IT8U12000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a7b49d097fa251e754e9fc181722cdbad4ec7279d9c25a2e75826d95bd986e. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/IT8U12000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9aefcc30d423cf61b3bc87d0e25c643a3a0059f61594d5d5f96a187a8e95a022. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:24:22Z), 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/IT8U11900017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68aefc1ec38032cdef2c3edf5c413bf48326be3ad109dd7fcf5749eeaacddb48. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-20T00:21:44Z), 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/IT8U12000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ddf9207599d915c9e5362f637efdb55ed62c6b0ce2dbe42073cda3134b3e617. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/IT8U12000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1aecc30272436d740df66e2c123532d16cd514f136509bde610bf6e5e97d7f. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:50:11Z), 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/ITUM72200356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4235e92d9561ae85d8e5ae2182670990d71cf1ec0e0990693a8f4e43b06b21b1. 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/ITUM72200522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e77d0b2278388e8afecbe7a081a61cc6f7f81f903173d1e987cdcad1722d97b. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ITUM72200573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced277480be52a66447d653e0f12da64e78cdd7e1c93c92753305d6f90ffb411. 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/ITUM72200575.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b1aecc30272436d740df66e2c123532d16cd514f136509bde610bf6e5e97d7f. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:09:07Z), 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/ITUM72200356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e3fea3778b4bab82653da0310490dfb56eb9282402b1307e23a5ac5a99bc47e. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/ITUM72200357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cf92c5395dd637d97b823df36357ce9113bdfd84b9990e296f31ae13d3929e. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/ITUM72200576.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7c892ab0d52a5b5bc8076431fdedff25518fb8c45df8924220fa2ed26250e3. 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/ITZ042300045.