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 0xe685c3c32f9af2d4e09326ad22808f52fe7455cc1d8504c27db2895c7baf1c99. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a19c0f4-afad-44e4-bf9f-49bea05ad0da.json and https://artists.proofprofile.net/proofs/artist/3a19c0f4-afad-44e4-bf9f-49bea05ad0da.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Norma (Ed. Biondi & Minasi), Act I Scene 1: Casta Diva
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 0x977b45f530f63ed71289c3bfedd6dc61e1ade4a7c233442235fa3ba62ee46108. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBF071340108.
Norma (Ed. Biondi & Minasi), Act I Scene 1: Introduction – Ite sul colle, o Druidi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ca782d98f1f904749d6d3b62cdca76eec84c517221cdbe2e966475438f8b247. 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/GBF071340102.
Norma (Ed. Biondi & Minasi), Act I Scene 1: Ah! bello a me ritorna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6ebf7ba4c9641870a6e02a812856b952e9839186de4933d79e63ccecbe0e4a. 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/GBF071340110.
Norma (Ed. Biondi & Minasi), Act I Scene 1: Meco all’altar di Venere
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8199cb4c0cd953e03dd337190761f7d36a7ebb10d0755cfc9d6da4dee032fb1. 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/GBF071340104.
Norma (Ed. Biondi & Minasi), Act I Scene 1: Me protegge, me difende
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb725b11655cbe86e127f32d144acd2b5e28e154529ab01bab4d8d67a43f9343e. 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/GBF071340105.
Norma (Ed. Biondi & Minasi), Act I Scene 1: Fine al rito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61760986c4372e7f4adca7ed0a84aa44c919e7902bc13035fad4380032dc08a4. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/GBF071340109.
Norma (Ed. Biondi & Minasi), Act I Scene 1: Norma viene
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cb2af67ce6131aa93ad55e7769b3ed781c076e317aa96b8893652fec04fca9. 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/GBF071340106.
Norma (Ed. Biondi & Minasi), Act I Scene 1: Sediziose voci, voci di guerra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x375abeb374fd63448c9243b60ae32a2ccc0ee989d264fc391c8303d8b56319a0. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/GBF071340107.
Norma / Act 2 Scene 3: "Deh non volerli vittime" (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef80c52941ccd24db1a900beaac0f9ff9e6277df08e335c2f7dd474058685ff. 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/GBF071340138.
Norma / Act 2 Scene 3: "Guerra, guerra!" (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x010050436ea1db6c711c1c85f96899f510d39f7fc15f298582b81187d14bd508. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBF071340132.
Norma / Act 2 Scene 2: "Guerrieri! a voi venirne" (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x516fd63273651c80e743da9b1ce39714ad7ba16c9e67be41f99ca2f8ddcf93dc. 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/GBF071340128.
Norma, Act I: Casta Diva (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x977b45f530f63ed71289c3bfedd6dc61e1ade4a7c233442235fa3ba62ee46108. 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/GBF071340108.
Norma / Act 2 Scene 2: "Non parti?" (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde46dfe6f32f6afb293598399c3741e7a8d227a40211e7596b54645477ded5ed. 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/GBF071340127.
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
Norma / Act 2 Scene 2: "Ah! del Tebro al giogo indegno fremo io pure" (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ba00294a9b03a91bb708ac21fd9b68caaa3926d7da9da8d3ad5a7a927c91487. Chain 2 (Bitcoin): anchored in block 960185 (2026-07-30T01:32:48Z), 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/GBF071340129.
Norma / Act 2 Scene 3: "Squilla il bronzo del Dio!" (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9f723f7ce7c4afa3fe3f4161db5814577a8afd9a2d0d6332d0f143aff86108. 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/GBF071340131.
Norma / Act 2 Scene 3: "Né compi il rito, o Norma?" (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8be291404df4c87a6ebb6ae2424645099d7dd28576f398311513a35e978dd0c4. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/GBF071340133.
Norma / Act 2 Scene 3: "Dammi quel ferro" (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3ac1014dda8f01cab8ada1c8b7de2e3528041b239dae48db0a25b8840db61e7. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBF071340135.
Norma / Act 2 Scene 3: "Norma! deh! Norma, scolpati!" (Critical Ed. Maurizio Biondi and Riccardo Minasi)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3a4839e6da546d34e27db73218bdf7e4b7e1576d10d125b5074559499abf98. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/GBF071340137.