thumb|Carmine Coppola (1910-1991) in the 1940 U.S. census living in Detroit, Michigan Carmine Valentino Coppola (; June 11, 1910 – April 26, 1991) was an American composer, flutist, pianist, and songw
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 0xeec1f2b08b922de1e1a114c6e10778ae9483294bc4fa6ed891d9970e88ba87f4. 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/4b6fe7ae-e919-4027-a76c-7270c1017894.json and https://artists.proofprofile.net/proofs/artist/4b6fe7ae-e919-4027-a76c-7270c1017894.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Outsiders (Original Motion Picture Soundtrack)
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 0x4be6507a0260ac396086876c21edd2ed34f0b4c58841dcbf7833d60bc2d0a078. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/GBAJC8200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d07f970fd1a9c4dfba06a78b196471d1ff1ec1d910c635b4cb532b6c52376f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/GBAJC8200029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5862794c5e5dbf4bb62c84050d547527492cc05970ada8c2f4096a174ffaa243. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/GBAJC8200032.
The Godfather Part III (Original Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f636b530d585db23dcba2802952eea58cee143e7f8613e5cc2b7302c4c96420. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USSM19000493.
Sicilian Medley: Va Pensiero/Mazurka (Alla Siciliana)/Danza Tarantella
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdce9522f689aa3f440c94b1389fbcdaf861362770b251f87948d230df0a34632. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/USSM19000481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x702047120aa4b5bf2f48cdf6a31172001badd8a15257d42fce324f627c0c806d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USSM19000482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9a6b4e378e3812ce41884b972f5896a3035fbafcc046623d1f8226010aad603. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T16:33:40Z), 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/USSM19000483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf55e27386eb86ab0e934991c0144b41db4599a559711751dbc6978cb79c70a25. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/USSM19000484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0bcf2bb92fe14d37d45571e11a8d85e604415d4787cd84d9e37e20b2554572. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T03:01:39Z), 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/USSM19000485.
The Godfather's Tarantella - From "The Godfather"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63c77410e6f982abb00c25b8a94ffb170c7be9665c0f7c6043381ff003764677. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/GBAJC7700035.
The Godfather's Mazurka - From "The Godfather"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb25d557db86b24ddd43ceac565280e31c1991e0862400dbfc50e2be08e962a84. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/GBAJC7700049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0106c191873f97164b6fd96346aff1c286137696664ffffc762d3f4636ea4f1. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T02:40:44Z), 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/GBAJC7700051.
Marcia Religiosa - From "The Godfather Part II"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac506823365d4f073508614bb422286b85f0c409a0428e0e1b43d3687f7a2114. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:47:33Z), 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/GBAJC7700034.
Kay's Theme - From "The Godfather Part II"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bfee2d5da22540a1a75c30f95b66f447cc2c393fdd7551af053c46651a623b3. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:46:29Z), 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/GBAJC7700056.
Hollywood's Greatest Hits: Classic Music From The Movies
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12b81c9de5624f35abcd237e352fcb82999bcc86a8ce7e7819ed23755c316a4. 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/USEM30700044.
The Immigrant / Love Theme - From "The Godfather - Part III"
The City of Prague Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78df38922ad934819a397fd055a5b7efa9a235b1e5265d826985e2ce563278dc. 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/GBAJC0003287.
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