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 0x21f606378ba5058efe92c59c7dd9540d9f2514514041fcd5f0f6ff72d2147316. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c7177867-2aee-4bcf-855c-06460dcc95b8.json and https://artists.proofprofile.net/proofs/artist/c7177867-2aee-4bcf-855c-06460dcc95b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Charles Simbolon - Best of The Best (Best Of Best Charles Simbolon)
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 0x3fb1a7e531f987c7a9eb2732291ddd3077f4b41115cbb7b478021c1e823966f6. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/FR2X41608814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ee81b5ba7cb9df742823ee86ab1fc83fd55841e0a76613218a7e697ca8e8c79. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:34:20Z), 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/FR10S1767174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf197ca41c30abe015d9fad7d46d3acf48344903f7c441c73df23260ba7c74615. Chain 2 (Bitcoin): anchored in block 958054 (2026-07-14T19:33:24Z), 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/FR96X1947384.
Charles Simbolon - 10 Tembang Cinta Terbaik
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0403a7ca25aecf37bcba0ff2bb82da12afa6e1da44cb568d1d94d6148f753d15. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-22T00:05:26Z), 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/FR2X41608794.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb4529cc033908487f5c876b1645df67d511827d9d3262e77ad96a41365d8f64. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/FR96X1652597.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee7e7c46b3b9955f280d4b93671a8bbd28910308070e4fa45c6ea59a1b1cb40f. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/FR96X1652607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473d0dc8344b40c9127905359236fcfe50745ff2d6a77d5c773ed66a28cf2372. 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/FR2X42236939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc62d57435a1306c1a28fbeec75fee2fae548e9a6f9a16b808ebd7a44280f38cf. 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/FR2X42236927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4139a5006386cfee67ee214e2498adfd08f9c5a60fbd0ee3ce8a87970c0159. Chain 2 (Bitcoin): anchored in block 957965 (2026-07-14T07:07:52Z), 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/FR2X42247478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58a4f23dc99086e30ab5999b520e1e6e9254fd8442bd7637401cc1815e4e72f6. 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/FR2X42236936.
Duet Charles Simbolon & Joel Simorangkir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x367744c288448c60763d7d2b250ce3f7dac66f358d9d036eed4c8409af16e6b8. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:49:36Z), 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/DGA0Q2306918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe500ef4304740da98930c00323005178dfdb3a12317598709629ed78843db3d5. 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/DGA0Q2306921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc87bb74014bce2cda12f2654af4f2380c09642734ffb7cfd128af7ed582994ec. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T19:04:59Z), 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/DGA0Q2341514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22eccff3ee1e438e8991be6dd3427f758abb753d592f103ddaff96dcbe46e49a. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZWDW2523487.