Allegro may refer to: Common meanings Allegro (music), a tempo marking that indicates to playing quickly and brightly (from Italian meaning cheerful) Allegro (ballet), brisk and lively movement Ar
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 0xb9bf9ee43f47f11d381cd4ea389ec38a204c423ad5fcdb677af80864a06469d8. 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/1bec6abf-58fa-4376-b91b-199d2d85d834.json and https://artists.proofprofile.net/proofs/artist/1bec6abf-58fa-4376-b91b-199d2d85d834.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 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 0x2aa29de1a3976ea59313d44ebce4497139a1603e45d46ccbe3c1e71747e4a921. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/CZA659051618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd57a1a35c46445768f726055c4ae5d5ed22bbf8958bd6255c23d0d07a8ea7493. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/CZA659051623.
Hypnotised: A Journey Through Belgian Trance Music [1992 - 2003]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6b45891da405f34443f95c3953157f103dec010c7f945674149001cf0d218b. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/NLD682400193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8848fe827f478cc86e0595e224ddcc154b26c96732e15e2de5f8dd0c41aaca23. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/CZA168800308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1659902dd09b90f3acf1b2978df4b68530bcced8e7c9da66f804fbd5076a511. 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/CZA168900246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52330addf1f5b929648bca8b7cef55326cb10c0ab529075077dac0c62ba5ce1c. 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/CZA168900148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b993742ab4d89083e7f9d1661f0f6b45a9fb54aa40c83d60b1647a881527ef. 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/CZA168900329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76c46b56782427f31b8f6e19c0d81d87c838ec072b2058d28595c0f4e3571cd3. 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/CZA168800495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f2ae2765d07463b7b6fa73a172266ef4ed3ec10b42cbf5b3b60f390e6329ddb. 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/CZA168900331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc34a5809147251f26f5202c4ba33490e07458b3a967bfd1c5e44564baec909e. 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/CZA168900332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe01e1c086ab04c996e8d7aec533044d3de29d5068899817436d8cfd7cdecc3e0. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/CZA168900333.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd916b599800ab2323d7bb0b88539d655300185370f7cf23970f1881c8270679. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/CZA168900334.