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 0x9dd945fb192b7d2ad1934137a6e3c3215f29481ce0061dae6ab842d64e7454c2. 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/f106b39b-0e54-4a64-9667-3a5c53b40287.json and https://artists.proofprofile.net/proofs/artist/f106b39b-0e54-4a64-9667-3a5c53b40287.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Marmellata (feat. Rosa Chemical, Tony Effe & Radical)
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 0xba20c1d415576f6b27096e3a5ac5439285386a9c81d57bbbedf50181e18e5741. 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/ITUM72101719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427f2bcda9f5b91b2628eb18996d1c714dcf84d997d5b4fb8680cd8cbd16a4ce. 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/ITUM72101722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x829e998a6f5fe764efbd93b99f06866f4b00ac7da7ea36fa669617e24f513110. 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/ITUM72101723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f06a83e1da8acaa420547fb109e015cfc670f6f7bee747760fff5ea0eb6804c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/ITUM72101710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c3e13f3da1b78ad5e51fb8ad43c214ba52dbd5a96d5e51a2861bc371f6c1d5f. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ITUM72101716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73f37e7a66f21ef97165106b352f01476d57a36c3f002beeada6661156f9a7db. Chain 2 (Bitcoin): anchored in block 958689 (2026-07-19T07:11:11Z), 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/ITUM72101714.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30b12a76b241df232738bb8ce7f2961decee0545280ad6ea94d4c30c4ecaf9a8. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/ITUM72101715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4007ec810b0e34e9753397a7110313c9dd80ac314f3fc5cbccc6b29d4cb51683. 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/ITQ002300434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8db3ab681d50eac028f9367a27a92ec5afc3522e1382489fca79af1b0190fb8c. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/ITQ002401073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd782a44b3ec7bec6c1a137f4d6c1b6ce6d3861c20b2dc88439bdf09af4736fc8. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITM382400222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cee719612dc4a3b08c21613a309821a39a9b17a2c314d6c082b4fd87abba1a0. 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/ITUM72100947.
La Strada Mi Chiama Remix (with Boro Boro, Fred De Palma, Wayne Santana, Dat Boi Dee)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc7ab6c5333ca3b3984f72a388699e2ce10ab2097cfde4e17ba5d4855f2b9bbb. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/ITF252000160.
Mai Più (feat. Nicola Siciliano & Wayne Santana)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53beecaa8586396d55c81f1ef0108bc2a9f1ec204523a74a2e90b663d008a9b4. 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/QMEU32118146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5f0e59f367055585e3ccca2a1c97e8ae279d7bbea44e684851dea39857a6ce. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T07:54:18Z), 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/CA5KR1920736.