"Domani" (Italian for "tomorrow") is a 1955 song written by Ulpio Minucci with lyrics by Tony Velona. The melody is based on the intermezzo from the comic opera I Quattro Rusteghi by Ermanno Wolf-F
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 0x17bc9af51e26ca6644bd68d0c11a5d95eacbab0b90e9690326575efe9e1f0b61. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d74a7d9-d071-4264-93ff-88991b0cc70c.json and https://artists.proofprofile.net/proofs/artist/2d74a7d9-d071-4264-93ff-88991b0cc70c.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e812bd190616f55aca73323d747a9fa1af603c49e0d648236dd31e4e6a2e3b6. 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/QZL382461851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44c9b918ee78c18906db708723178882f4183e405cfd2f1adac6d4e375d34124. 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/QZNMU2140059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x135e5d6c0785456e298f3efea3782dd90e3a67198d30ed281296a84b4662a485. 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/QZQAY2425324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd31f3543f54e0ccea422e4fa48ffda28ed76ea4b3994722c721a8ab3ef7aa0f5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/QZNMV2082379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1887de31559d093757f9c205de6d8343f68929d0680d359a6a5904bacaf51a95. 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/QZL382453894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf68c3a2d60ea3621e3947cde634326ef7af39355ec6e3244ef5bbffcb48cdc72. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USUYG1337003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03542b329f8810e96b882cbab5bfd0bc03f72aa644f2bae054826eb910d3e9fe. 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/USLD91702018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b6949df031ec280d3095d2b5003d6dfc18a7efeb4704a77019cc0a0b9f99d1. 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/QM24S2402977.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15167e3cead77853af4e4b0227782ea88dc80954110c5f9d9e7f383d8681b77. 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/USUYG1245544.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x720dee71045b53f9366dc0aa87780a00cc10a5581b59edd80b1b0fc38f841520. 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/USUYG1254914.