Marco Dall'Aquila (c.1480 – after 1538) was a Venetian lutenist and composer known for musical forms called polyphonic ricercars. He was born in L'Aquila but lived and worked in Venice. He often perfo
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 0x11699315b5638fdbc3dee294dbe540f799db8d2ea58c06343b3a4fdfc1086def. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/19c2c8b7-ec59-4511-b133-0971e53ea2c6.json and https://artists.proofprofile.net/proofs/artist/19c2c8b7-ec59-4511-b133-0971e53ea2c6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Marco Dall'Aquila: La Battaglia Music for Lute, Vol. 2
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 0x370389d5ef76fb12ed477128662379790b564ad0e35a237319b2f8af99e829fc. 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/NLY331400510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a83578cccbbf2c3bd07427af2db78f2f698c5a907abd901bb82bcda7724149f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/NLY331400511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0ce6ad708b03f751ca4891f606218aca9a697c98be2dea7190164f76651aea. 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/NLY331400518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeced91738033c9535bfeb4097105599dd08d7d39afc50423108f4c1af9695a29. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USHM10954801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xced0c3815b42ff6067c1b0bf0ebe4af43dcf554b8c30889a75dc6b3e53b75144. 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/USHM10954803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00db700c14348a591393aefa53f2e6912bb9977136eefc5fccbb869325450d9f. 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/USHM10954804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdca0ffefe97e882fe6956298c79f69cfe502a03ba12162aca60da5ada18746cd. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/USHM10954805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacb4af2e05c3c0df51103ad4dca85c161cb648cf52f628a967e688fbab1f473. 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/USHM10954812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1be28cf8c9eed364b50a11f5203c1ae2914e621c1e5a7896e3e12edadacf134. 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/USHM10954819.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82fe0763a20a4c8ed823e74d560319d7517633c5350e4c7c1d1bd620d24601e6. 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/USHM10954820.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a7eb0c7fdf3ab5448faf13b1f070ee1e479c63254bdc89f5e8286eee5078fd. 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/USHM10954822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x987393d54385ad2af348f6e691803c05afce729b390d14e1eff8ce2f72df7720. 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/USHM10954825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad10a0a8a42ecffb2e4db28d77f337bb1552d01442e8b36e4e4b355f18d83d88. 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/USHM10954827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x726f89f6d5d7f5ab3e3f15dce37834dfcd28f9eaf97a8a75aedea7d1115b1c56. 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/USHM10954831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80db3c00177b0aaf1b1c752f3c5ed76a13e01855097b53a1ee50e63f39199488. 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/USHM10954832.
Donne impresteme il vostro burato da buratare la mia farina
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb58b3724bfe74c0c048ca603377ac35652e226c6931d12bd6db675d9a66a17bb. 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/USHM10954834.