thumb|right|Alberto Nosè Alberto Nosè (born 1979) is an Italian pianist. Biography Born in Villafranca di Verona, Italy, in 1979, Alberto Nosé studied at the Verona Conservatory F. E. Dall’Abaco. He
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 0xd58a4919212bf76ff1e3406feadedca2d1ef438a6fd8730205a70e9d3440988a. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d1865e8f-0fe5-4e32-8681-ddf6ba1d562d.json and https://artists.proofprofile.net/proofs/artist/d1865e8f-0fe5-4e32-8681-ddf6ba1d562d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Robert Schumann: Etudes Symphoniques, Op. 13 - Sergei Prokofiev: Romeo and Juliet, Op. 75
The Planets, Op. 32: I. Mars, the Bringer of War
Gustav Holst - The Planets (Arranged for Two Pianos by the Composer)
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 0x257e8fdeea70a9259cbcbce80f550ac73baaeca25acb981ca1c4d8a46a346aec. 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/ITW312133701.
The Planets, Op. 32: V. Saturn, the Bringer of Old Age
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b1e95e0a5d5934bd79c5e8ae75b40f0a795bcb265c021743eb55db9728e74d. 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/ITW312133705.
The Planets, Op. 32: VII. Neptune, the Mystic
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7716adb9e09b77943efc091037217c72f1efa0da1226613e92e9576571140cf0. 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/ITW312133707.
Keyboard Sonata in G Major, Op. 17, No. 4, W. A10: I. Allegro
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaa145d3dcdf8face56cf2723f0b16da3778c203fe6ce16645a4abe493ed369f. 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/HKI190721508.
The Planets, Op. 32: II. Venus, the Bringer of Peace
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x407cad637dc502e32cf60854012de23078740eccd06db77f4339cecc736932b5. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/ITW312133702.
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
The Planets, Op. 32: III. Mercury, the Winged Messenger
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc823245059763ac6b6fb85c63df180232c630d17bd194ada7eec6238b5280eab. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/ITW312133703.
The Planets, Op. 32: IV. Jupiter, the Bringer of Jolity
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2d13ea6d4a0a0b1a7e2bfe6b3756699e253a6593a43e82946d95f396041985a. 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/ITW312133704.
The Planets, Op. 32: VI. Uranus, the Magician
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde5116d419369c7cc545e90e5101154f8ff13837670b10ea9c4b6936fceede30. 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/ITW312133706.