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 0xf63f17e77a0e30d280a4486c063dc66c7bf05e014f02299fbe771a31f756a91f. 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/75d45107-ff5f-4904-a6bc-9aa26318244b.json and https://artists.proofprofile.net/proofs/artist/75d45107-ff5f-4904-a6bc-9aa26318244b.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 0xe34553057bb5b93d7a67a6c2b37c79322f4f2d4c3eb78d59c76458927a9fcdd6. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZYHM2330119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa90d0d8eec6946c78c989c01d5070365bcd1c4868aeae4b26291c9bd28e70923. 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/QZYHM2371587.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f57bfec89f8db00d7d2ef49f1bfe58ba051787a01fc6d123c36229172789e3f. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZYHM2371602.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb64a38f5a252d4fa9713c6db76c74d9804c7e28a6b39327fb459526f2335a2f. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZYHM2372313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1dec68b83c976641cbcc068174f3d85390da875ec1572522a32dea48d572591. 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/QZYHM2401047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b903eb08a937caf6f1d64c2f5b830a31c3ae2775d2e57247d9a77eceac1e103. 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/QZYHM2406260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbc34af8ad1489a03733e5e9502d87db2b01f294232058c8014a4878080e7093. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-17T00:38:33Z), 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/QZYHM2408140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16f6c96638e934fd4d224eb3923cabe17056089a400534e1f6e21ccf19a058b5. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZYHM2418638.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6d3956bc88b17d63ec8827bf68a70952c16ea462b214c04538641fc83d3413. 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/QZYHM2418835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dfa69ef534ad8ccc01c7a0baa334b9d829d2db617c8911937e2f52e284f5f0. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QZYHM2419007.
Anta Syamsun Anta Badrun (Acoustic Version)
Dunia Sementara Akhirat Selamanya ( New Version )
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffbc8f2fe3681d0f68f7d5482f729d6a793742339b87be686bea2482a063fe0b. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/QZYHM2424780.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a6a3344f29988833682394f2662c15f0166c73860c90cd7536a8b49fa69b8e3. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:08:49Z), 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/QZYHM2426046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80f474592c40469910fc26c29094fe549eb3121ede1ae294ec43e121047fd145. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZYHM2428954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9564d85d22d0ec3ed5cb7d06ddd6833caa65eac16fe21af353f6ae159bcccc2a. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/QZYHM2500372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x095a548ec02fa16bd77c8bec8218c0b07750c170d85ca259e8aab12887ec8bf7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZYHM2503163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ea2ab9e9cbd20a01d4214cdff11b79f660f0e43a35c96eb8ed2ed00ac11845. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZYHM2503260.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x346a6f060eb9f9d4d53b99e8b47e4b2cbc1cbc63dd1f7cb28a87da4f8cb9b0ed. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZYHM2505430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcd9e298270912d0771769cac8967286d1d15d12f4bc57e7c14bffeeb494b9a1. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZYHM2508206.