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 0x5f54b78ba1f1f7d40b3d8e3c2fa6ee074b43709585b114bf0875a975d6701f6f. 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/d2a892a7-f15b-4528-9e1b-4c11c76915a7.json and https://artists.proofprofile.net/proofs/artist/d2a892a7-f15b-4528-9e1b-4c11c76915a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Knockin' on Heaven's Door (Instrumental)
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 0xb6e15a47c8eba728fcb5ac91ec07758e83304722727c66df568d3cd260c503f5. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/ITDCE1700006.
Sticazzi (Base della versione stornello romano)
Cerisiers roses et pommiers blancs (Instrumental)
International beautiful song (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06ec409d447642b43bf80b350a495d647acbeadd42d8ba8cad3d49aa1ad26aff. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ITDCE1800065.
Happy Birthday to You (Backing Track G Major)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71273c611a710066e6e21dd6b4307a14d6ed1a9de4a41fa8cef6c088a9a9044d. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ITDCE2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9834218eff329952955af89a671a10c3285df079bbb8d20fc299f0a3fd9dc45. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ITDCE2200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52a65b50e64a9d49aec2d13988fb40c4a83b7c524dd1f300456b8d37650d806d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITDCE2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7262db95b13c17d23eae2ba309055a7b19f97dd8ead97937199cdccea1556d3d. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/ITDCE2200047.
Jeux Interdits ( Romanza ) [Instrumental]
Wedding March from a Midsummernight's Dream, Op. 61 (Disco Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fac9d3dce56b0dc184dfebe4f57d4ad7295dd279b5b07efb8aa2b094ff9c047. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ITDCE2200131.
Close Encounters of the Third Kind (Music Inspired by the Film)
La vita è bella (Music inspired by the Film)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ba3c4910a3c6728ee08c1be87951fefcf144df1aca42487bda3bec7d942b24. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T04:17:14Z), 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/ITDCE2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56a4055a9102e5f023646419d7e2a8d68b12f3f66b82f12499fb6ed675c9f2ae. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T01:59:52Z), 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/ITDCE2300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f707cfe7ed1e89ad25bc2ed6a78f90151fe2a902dd70c5cfe4ccb0ef2bd900. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/ITDCE2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc16d4518f719236c9f0ac04a3a52d78a058a8bdb28bf983384990baf8406c10. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/ITDCE2300066.
Dubidubidu (chipi chipi chapa chapa) [Instrumental]
Dubidubidu (chipi chipi chapa chapa) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e07eb30f40c325293178633aa239038a532b0bd6c7b685ab241fa2de57317a4. Chain 2 (Bitcoin): anchored in block 958051 (2026-07-14T19:14:42Z), 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/ITDCE2400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb596c81129ec2dc3ae3347f49bdbe3d6c182f0a0d191668710f44173eab51850. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ITDCE2400052.
Fratelli D'Italia - Il canto degli Italiani - Crazy version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb222fffa82d22ff5161f2b0f14dca94b6d6b65cb8da9e1b8ed17f66f9f2315f6. 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/ITDCE2400057.
Jana Gana Mana (Indian National Anthem) - Laughing Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee48d64caa9ad708fcad6b7ce7450d20f734117e5e7afd9bb5023629811c049. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ITDCE2400060.
The Star - Spangled Banner (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42db73f92616a059a51e49b678b27bdfd4fd69100fa3f68ce8df44fe3c45d2a6. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/ITDCE2400024.
Love Theme from the Godfather (Instrumental)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d2f1070a5c1351cb87b880f6ce591e230ce25d50cb43582b57d8eba0df27378. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/QZHN62554974.