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 0xb5bd257144beaa95a5898f77325b806d34afdab5c5771e201098a12b1f5e9829. 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/db77ac1c-2579-4e3e-9977-f357178f7954.json and https://artists.proofprofile.net/proofs/artist/db77ac1c-2579-4e3e-9977-f357178f7954.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 0x2442990c2296c724812ed4b80a52311c22c2e4a84a959c621e879ca24a38a02f. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/FRX201952246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4dcc7d9df6ddec85e80fa74c14a4745459bbefeb3f1218cf42ffc3ff9c8ce719. 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/FRX282152435.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31c09f9690ce39e3bc48b3e6d05e8c026988465ef25015d6767cd65f83823416. 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/FRX282161175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dede6e88aaf0413534feea6f4dce69ff5465f3b1381dba3c1e85c42a8a90971. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FRX282152492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6cdf5bf19c0fa6f6e1eee5392b5260289952991873cabaeeefe29a08211be97. 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/FRX282161178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2bf851b0aa680d4555c7c8a2f47fabee662a347c85612287a6f6fa1ef3069db. 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/FRX282161179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71a0754b311510ae9a7d840723ac8d5c649281057ae56718044aba2192722d68. 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/FRX282152436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c5be75f58f7f09c90206fc4c451c8cfd37754e273fb260b1ead7797e9402592. 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/FRX282161180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a19723f1031fcc93f47075f7a53b87318a787db59b34078c475f524b307fa1c. 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/QZHNA2257197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf71e5a538f33e42a6bdd9eaf7b2a0106da67e582ed7e2c3997433ce257b2561. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:02:07Z), 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/US38Y2547879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb16b4bb48afd04babf8afb36c6f8c8a257b01ed71807cde5ea48bc8694d1205. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/US38Y2548948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd79e6e2240aa8e2eaae88bb1ccfefbacd7adc3110a987b6f62f6304d4fc083f5. Chain 2 (Bitcoin): anchored in block 958538 (2026-07-18T10:30:13Z), 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/US38Y2556984.
Nuova Sardegna (feat. Luchetto, PRACI, Rico.Pmf, Low-Red, Sgribaz, Cage.488, Razer.Rah, Enomoney, ilovethisbeat & Prisoner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3639a7afdb205a94873d89c9f1aca70a9b3e2186fb2e1d75d4caeb48a0a84422. 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/ITUM72300904.
Local Heroes (feat. Low-Red, Razer.Rah, Luchetto, Cage.488 & ilovethisbeat)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78812dd9c39806debc51d2b5fd46cc1e435e8c39b62cc24b076f619526aaf617. 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/ITUM72300902.
By My Side (feat. Cage.488, Sgribaz, Rico Pmf, Razer.Rah ilovethisbeat & Enomoney)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x211e6c6b19c9959da8bf61d5bb7eab6503ba79ec2760b2c00e4262ae3111aeeb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITUM72300900.
115 (feat. Low-Red, PRACI, Cage.488, Luchetto, ilovethisbeat & Prisoner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94afd83c8c50f8ec12de3e716a86f0a273a4212dd5c1862e717ab218cd6662d2. 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/ITUM72300760.
Blessed (feat. Cage.488, Sgribaz, Rico Pmf, Enomoney & Prisoner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x914af7608b97f8de88b0373113cb2a6735e4c273b2f6d6e85c7fe4123ada4554. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/ITUM72300898.
Business Lunch (feat. Luchetto, Low-Red, Rico Pmf, Cage.488, ilovethisbeat & Prisoner)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa05e109fdbffb91e6691fb7b8ee303f9a4f518fcf2a3136db61419ebfbc85b03. 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/ITUM72300899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e0895d2f808e46452fa5fd8669f11734c7c302dde26eef9792be6f349be896. 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/FR59R2166491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1ecf22de3e28686ed6254a1a9e07d0fa5342055bd4cfa5c3a42935bf9986dc. 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/ITIWE2101082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07162d7795c493f2cab642694c364a4353bf2b590fdbeaeda0ef0a7845921632. 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/TCAFU2187517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c70e650284f9b08758437d1032c86e7f9b581fd1b2b07ca5be35c486f0ebf10. 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/TCAFU2187537.