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 0x9af48da03df00a2bd456cf112312b068ff9c4a5f9524c2669cfaf210a23b5bd5. 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/f364b146-a90b-4efc-bb1b-b31bfb660434.json and https://artists.proofprofile.net/proofs/artist/f364b146-a90b-4efc-bb1b-b31bfb660434.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 0xdebbc390672aa4e4c5d3a6950982681bbf4a8a0179c462f959240a1fd2732aef. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US22N1409902.
Prom King 10th Anniversary Deluxe Edition
Polyvinyl 4-Track Singles Series, Vol. 2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad8569acfea5b988c774d66ef9a799dfe1b55c7fa40dfda611a06e48c98d1da5. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/US22N1510701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c020be8309a8b1f3d03f5995fc7412a1f9073ac1bc6148918a21239f0b7279c. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/US22N1510702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d63b880a89e6b7762aca39343caeb544f43cd440f35bb7969ad0e85cddcda9f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US22N1510703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b70f10a84636f9d90482ea468a6ebe2e3067556024e513740b786b396e13c32. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/US22N1510704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d67933386d58cc941701aa1631250f4f4b8654b24368af8d0b71b9088fab489. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/US22N1510705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x332548ebc9818a71b1be64180e1aeefce0cbd7f719e1643b3588f3b8cb2b3116. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T21:40:24Z), 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/US22N1510706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf539903f4263ffffbf3cd12e61c7440c69d8e97ee25bce24a702f962235ad8dd. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US22N1510708.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa48e765dbf979e44a85f785a14252dcfec8215768cf9fc0f82bf6cdce371702. 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/US22N1510709.
I Can't Be Your Superman (Gabriel Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7187aa0c39ba14d9fb73142a57a3ed8ddc80c00cc7fb04cded0f51ac5b53176. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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/US22N1510716.
Prom King (10 year Anniversary Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bc058c6133843d52ae41ef081412a86461cb9324949d7287f596d0dfcd89854. 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/QMCE71303073.