Caterina Barbieri (born September 14, 1990) is an Italian composer and musician. Education Barbieri studied electroacoustic composition and classical guitar at the Conservatorio Giovanni Battista Ma
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 0xbd99b35fdae92fcaaef7952aa4e844f3b8471964f8f36061a95483494c278351. 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/ec8e257a-f37b-48d1-b17f-4d52bef05ec0.json and https://artists.proofprofile.net/proofs/artist/ec8e257a-f37b-48d1-b17f-4d52bef05ec0.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 0x293433857178424e710ebc7fbedb4fdf8f1dc074ea039c17c3c8fdd4c8c14c19. 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/DEG932102668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3855ca8e84c59b2ce42a626b47eaa6c84c3ddb08e168b5e38c351120e23d54f. 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/DEG932301228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bccbde87479dfc4badbc3832cd0e175811d4cc9b75d6831f4966d8e83c7bdb. 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/DEG932301229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9435765d4111e5d70eafcb7494715026d60a91404220f7464673e0019d9bd049. 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/DEG932301230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33b9531c761a31bdf2d589a28322f5614a8881d67ccc82f05f2795606240b710. 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/DEG932301231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cea7cc1f4d95ecd571fb5b69ed5faf573728914da20943cccf49e2137248052. 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/DEG932301232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814278fe1d95d86ad4b22636d8ae01456b4545aef2959711791aa53dface8e15. 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/DEG932301233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a9925552e63ec47fa1acfa3dfacc9e142a05ec8b2fa1b78727dc21ee0f2de7. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/ATE691925901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dac0069c516ae4c6a2c1443d22fd5558e331a817d147147de38f8ea16c69188. 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/ATE691925902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7fc28f652430ed85a01648981f6802fb4e19d4b21f27bcd9bd9423468e32f6a. 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/ATE691925903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8389b63de1f1f20c94b96c74085c6d0d1b0a548f76bf4ae180073e1ab3e78c70. 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/ATE691925904.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30de881ea1797a24d37fa5dfdf1cf2e15d222f88f77613e03f549c0f72923248. 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/ATE691925905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3523d927017630970851c586879124f84f8ebd5acca5ec8ffb24867f99ef9bcf. 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/ATE691925906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44339f8e5536e3a92fffd04a43627a097ccab510497973b24427cdb10deb9a40. 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/DEG932105344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x666d6fd5524809258871ac124ca53cb5c79dc79c7aaa87d9b6a1c6c826969982. 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/DEG932105345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64bcb3ec3be41cb4ac0547b4245a9d787a2cdbd9e04605051beabad168cdb595. 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/DEG932105346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x989f79e398a7f21814a64667179b9f704cd7e6604e0ab2bad50290642ba52b4a. 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/DEG932105347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfbf6c99d7c520004cda1fa200008cc4cd02b184ac73178e613ca50cc66f8cd. 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/DEG932105348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ebf8dc22ef769395d0202b342de7bfd6397965ae3cda7cc2536a91a8960f52. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/DEG932105349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d1ae8bd6be2b7a1f0a3e80a9b5677d0a014829685f1210ed15941bc833a450. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/DEG932105350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1413b192a4d79334b04d44d64c6af430297ae95bfd0d78c97eb77991fd128f6. 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/DEG932105351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x172b59cb89089ba63b65f7142e80bdadc592adb9e5724f0a33470c89afd229d0. 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/QMQQH1708738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd537d8a1d4358b2665f0b7508efa28b3d64f102df01316e4843c407ed95c19f6. 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/QMQQH1708736.
Information Needed to Create an Entire Body
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2f4474c360739a61079ec90f9f1866aa1f5808515ffbec502914d00857a0d69. 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/QMQQH1708733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c7e7e64b220dc9c95a65c9027a9bdfaada6405f52dc6f06db1003ef8589d41. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/QMQQH1708735.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800a2f610911b57a9c1022873dcd8308b1df0005cb41ba630e63288ba02728e6. 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/QMQQH1708732.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f54b46cabe7ba9a5e215a78bc4c56143e744bc3c459daf6da1376722ec246d7. 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/QMQQH1708734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf07e863b6a0d7b210e1c80f30bd0c5cfe1e4e3558fbbc211c5a8888876d16d2b. 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/QMQQH1708737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b30ae8a29ca230864f21acc791d98db485daa40be7f5f9f35027a4387019a51. 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/DEG932301624.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x814278fe1d95d86ad4b22636d8ae01456b4545aef2959711791aa53dface8e15. 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/DEG932301233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2bccbde87479dfc4badbc3832cd0e175811d4cc9b75d6831f4966d8e83c7bdb. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEG932301229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7d1ae8bd6be2b7a1f0a3e80a9b5677d0a014829685f1210ed15941bc833a450. 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/DEG932105350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44339f8e5536e3a92fffd04a43627a097ccab510497973b24427cdb10deb9a40. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-22T05:36:07Z), 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/DEG932105344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cfbf6c99d7c520004cda1fa200008cc4cd02b184ac73178e613ca50cc66f8cd. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), 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/DEG932105348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd09eab682de6e4a25d8be00e5f9c25e2b6bd35ef8c83fd21716f7d221292f7c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ATE692127902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a9925552e63ec47fa1acfa3dfacc9e142a05ec8b2fa1b78727dc21ee0f2de7. 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/ATE691925901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba5ca19d27922a55bdd82a4a5e0f15004a95c3a3d0831d4d3b780d3c867744b3. 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/QMQQH1809451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59141dabb682ce73132c5ae13ebb44f1e22508fff5701af5f64e7b57603eb99c. 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/QMQQH1809800.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a48cfcde4bbd2d126661a21e000856a155752b8e5d4f3b6e67315c31ecab103. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QMQQH1809801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2733a3aa19b3231ed121a4e119052f3922c55cb8ccf1fe9cbd875cccc462b1. 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/QMQQH1809804.
Flowers from the Ashes: Contemporary Italian Electronic Music
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb096aa101d3d1a88613cb2e7ac101a72684d1f3d38b2c848a3f17c177b962301. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DEPL91529311.