thumbnail|Luca Giordano: The Dream of Solomon: God promises Solomon wisdom thumb|Tibetan book cover depicting Prajñāpāramitā Devi and Mañjuśrī in yab yum, late 13th century Wisdom, also known as sapi
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 0xcbf0e1c13a9050b7ae4587e3029378645ebc55f9f7f82f2c31ee9b28eed6b57d. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1871f74d-39e5-4897-9771-2d45147e8f86.json and https://artists.proofprofile.net/proofs/artist/1871f74d-39e5-4897-9771-2d45147e8f86.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 0x1312f7908673ebc4f8b9c2a79ef4519d7d15292221334809d1abca8eddf9a9a6. 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/USLD91742432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946966aa64c1b558875181fc3577b63ebc9752e3117b7c2aa0631cf12d3313c8. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLD91754112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa66fc0777edc3ef72ba801878eb6bc66b9545d493b2dddbefcbaac09f4109caf. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLD91754113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x613ef857ce8c7996709ae3a827da2827609bce9f3199048711f32d16b9884976. 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/USLD91754114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1312f7908673ebc4f8b9c2a79ef4519d7d15292221334809d1abca8eddf9a9a6. 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/USLD91742432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03d856e6937862cd74beb5b940b944cef4100f1069261fa6b982cbca3f1f7de. 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/USLD91745766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c509ae10cc0acc102609722775bbddabcda3f9a5a5a8e250e3c3442013f56a4. 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/USLD91732423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0c8a0492f44d7905e2f1e71b7278081ab44c7cad18661cfe35e12d39a1b524f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USLD91735027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b2d02d06cc2acb3396385a39e317ef9d1bf152c6aca088fba947ce5914045aa. 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/USLD91735028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda8b9796ad264d28ea71c3daecea7a906e4c496a529f8d98c40d4bb2f391e244. 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/USLD91735031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa1515d521e8ba061fbc83893b10d1c56d013016efb2c6fc07d83d29832d1350. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USLD91735032.
Blues (feat. PG RA, Reck Issuez & Enphamus)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03d856e6937862cd74beb5b940b944cef4100f1069261fa6b982cbca3f1f7de. 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/USLD91745766.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4557ccbdc9175a60ab7b9288d8f1fdf1123dbacba4a15895b7395545abc039a2. 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/USLD91742360.