Vittoria Aleotti (c. 1575 – after 1620), believed by some scholars to be the same as Raffaella Aleotta (c. 1570 – after 1646) was an Italian Augustinian nun, a composer and organist of the late Renais
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 0x4f531eb4dc1fb948601b2e06b4f39999dba01707fea653c947ced6593ea2c733. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab4de9ad-c9ee-42ec-9a31-0bb9ccb7dacb.json and https://artists.proofprofile.net/proofs/artist/ab4de9ad-c9ee-42ec-9a31-0bb9ccb7dacb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I canti di Euterpe : Composizioni femminili (XVI - XVII secolo)
Isabella de' Medici : Lieta vivo et contenta
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 0x165820b5abc9ed4318f44641e1ded10975bf2c1b3a1bbcab424f454992c395d7. 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/ITK341003115.
Vittoria Aleotti : Hor che la vaga aurora
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x413b3d87e02aaafff8d70eb60be51c3e970eb414ee1b8d2bba357327587bbc9a. 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/ITK341003702.
Lucia Quinciani : Udite lagrimosi spirti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x423cebdfb7adc83db53ee662e8ce2666019bb30457aee8f2db29bcf32275d830. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/ITK341003704.
Maddalena Casulana : O notte o ciel o mar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2829763784b401ed509ae884b1e65c189eb73fc90e90794c6128a1123ccc4cd. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/ITK341003707.
Maddalena Casulana : Vagh' amorosi augelli
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a68089769ee395fa513586f499a55db104fcab64f1002edcc50f2dbe0cc573. 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/ITK341003708.
Maddalena Casulana : Morir non può il mio core
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa660a68876fd36c9e7ad27abe0ae9458b666e5656e360a9bba29276eec2f7dac. Chain 2 (Bitcoin): anchored in block 960199 (2026-07-30T02:30:29Z), 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/ITK341003709.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c7be09c6aa4dca86b07e1b61d8253b4434c7c7e5adad2699a2e312efd89d427. 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/CALC42021151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc18227709385d974e335b059d4ad2f824a7ea7d1cc2710041a5aff2dd61f559c. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/DEY320401015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce2174ab4ec77cc3518dcd42c672a6cf6ea6911163cd32759b81d3904e665486. 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/USHM82246327.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0a7dacf2fa508097a26d221e81d3cbe0262ca378aad74fef5a9c3d67f8d1b47. 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/USHM82246333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcaaf444173ecd16123f67a13fd3b4d7e6e8e8ea45e8d9cdd3e5b8ebf14b6731. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), 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/USHM82246336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd504034ba492f8b93112b7ead699c217fe815d868982cb0f9c878167aed2391. 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/USHM92418860.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f13a97938a5211fb6b28c96e3afd21a038679bddb9567923fcf341b3efca7ba. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/DEU241110042.
Vittoria Aleotti: Madrigali spirituali (Arr. for Guitar)
Trio No. 2 in G Minor: II. Andante con Espressione
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8904f2fe99403cd9b39eb9fc469acbdba31a639fdd1ef0162a2eedb6743abc34. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/DES382408005.
Trio in D Minor, Op. 11: I. Allegro molto vivace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67b00860e835d1206ee3d508fb5289d8e8783b9033ee2189c6372126dc6e6c44. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/DES382408013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccd9ca16c21f2ce8c288ad09574bfd826093a5d8df66e9652c733096f39dd45. 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/DES382408035.
Clairières dans le ciel: No. 3, Parfois, je suis triste
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9096c4af1ec3a01be44c279519fc2558c88b9db6a90f9e69a46885c2bb37a21. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DES382408025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23a359c0914eb5ff24183bc18844817f40962c302de2edd26f966929a89db3d6. 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/DES382408011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x445866723743a5ebf8531d2c4f599894b62edf1a3bfafcd6df382301bc597ae6. 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/DES382408031.
Vittoria Aleotti - Ghirlanda de Madrigali
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed877aa012fd5854d8da2e17e291fa6835fd6fea61f2685d134560c6876eec1. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), 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/DEE472400389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x857150b2b5f7d148eaad4e38ec86edfd24117692bbcc9001e06187b124c931bc. 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/DEE472400393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56b04f44e7ccbcedba73d12b0fcddf3e42602e48603359c90d2f72820363ebf5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEE472400397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6722667ebf4c9bcdb6a4686e82bc7da50da46b939663284741a1c17217c895. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/DEE472400402.