A (Italian for "lullaby" and Latin for "old, familiar song") is a vocal melody or instrumental passage in a smooth, lyrical style. References Category:Classical music styles
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 0x06d34fb8169b194d28e012c0aad2801841f8ce578e51a00b5872b8df5956ce3b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83f1862c-ab62-4017-abc3-17b99264e120.json and https://artists.proofprofile.net/proofs/artist/83f1862c-ab62-4017-abc3-17b99264e120.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Muffat & Von Biber: Music from The Court of Salzburg
Canon and Gigue in D Major, P. 37, T. 337: I. Canon
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 0x9e4081ed23631c2f33804ceb0a8b730d25cc7d3289eef1d16f0228c983c448eb. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBLWD8400602.
Solomon, HWV 67, Act III: Sinfonia, "Arrival of the Queen of Sheba"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ce196709510764134fd5d60f8e64031f820dd9fde7b1e40a201a4e9091ad6d6. Chain 2 (Bitcoin): anchored in block 960337 (2026-07-31T02:51:48Z), 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/GBLWD9101701.
Violin Concerto in E Major, BWV 1042: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14c1b608de3fc1b8d3c20d99c1e6609b802eaa8ac4cdb97000fc6d998a88d546. 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/GBLWD9101702.
Violin Concerto in E Major, BWV 1042: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39b8266b40c2407597dbbf77d7dad020a393f043f08a868751220fda7b42fbc8. Chain 2 (Bitcoin): anchored in block 960306 (2026-07-30T20:23:53Z), 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/GBLWD9101703.
Violin Concerto in E Major, BWV 1042: III. Allegro assai
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bdb348403ae62ca174c2330f114789cc73ce1a41a04a58ed67fecbcf1d7e35. 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/GBLWD9101704.
Canon and Gigue in D Major: Canon in D Major
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a0daedf054fccbdc71fedad7b06411177e0e978fe137d28590c9357de90ec8. 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/GBLWD9101705.
Concerto for Strings in A Major, RV 159: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x563134b88f369a76cdee21ab21da970e776e4a74c0a0ada82b5ac01b5bc06760. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/GBLWD9101706.
Concerto for Strings in A Major, RV 159: II. Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb640f3b6ec4bf59adf5b180c1811fb8e0bce88dfdeb8e2c08f3b6f226036e5. 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/GBLWD9101707.
Concerto for Strings in A Major, RV 159: III. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce44de1a409f8da47ca30139be56c4954487f851e65ac9986aab46a80d56a81. 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/GBLWD9101708.
Water Music: Suite No. 2 in D Major, HWV 349: I. Overture
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccad4cd39b259fa1b71399c4c67c3bab6884c96675a3a1d5dc3eac16e5f9477. 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/GBLWD9101709.
Water Music: Suite No. 2 in D Major, HWV 349: II. Alla Hornpipe
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d469c9173e5a2fada0d8d7e05bb413cc857cd46fe65a351afc05e0116951327. 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/GBLWD9101710.
Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": I. Vivace - Grave
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2199290caa8f9849a5398273cb29f0a183a98c6b2eab917a20c4788e0ef7fa. 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/GBLWD9101711.
Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": II. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x443ed5b521306a6ae648cdfc501dd4d66df0e36ab0b4ca48c9e3bd955ec7db90. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBLWD9101712.
Concerto Grosso in G Minor, Op. 6, No. 8, "Christmas Concerto": III. Adagio - Allegro - Adagio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c2181069d6a6acac13c200d76aa60c98f3cb080cd1557f93855ea058d5397cf. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/GBLWD9101713.
Overture (Suite) No. 3 in D Major, BWV 1068: II. Air, "Air on a G String"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd695065aa5e0fc59219a9841f8d7a99f72248b7bae8fb4261431e681c63f2642. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/GBLWD9101717.
Concerto for 4 Violins in B Minor, Op. 3, No. 10, RV 580: II. Largo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702d40ebea5e213d461f27d86bd37b78fe46f4bbc1314b9da0879e3618777cf5. 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/GBLWD9101719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf31b188f778049f8e7cc89fcc3ec164966c934235e491c87e28f33285bba0645. 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/GBLWD0311301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862dde48f3445cbc3f2694ebb51d21155e83d4979b1e345929133d91ac47028e. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/GBLWD0311302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99427ffe00ba93a7c4966c96ea212a30c3702eaf21fe891d3dca6c2fb419ce3e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBLWD0311303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c7ef2ce05d27cd94bf8cbc8c4be37e722d03f38396b9844832cf6b06eece37d. 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/GBLWD0311304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa122cc96acb0bb85c746f7807f62cfc78c71af945f2fd4db824e2056885fa9fc. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBLWD0311404.
Stabat Mater & Our Lady's Visions at the Cross (The De Boni Arte Foundation)