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 0x71597e8631b4f8f018f07bf3a519147623ed07b2c4de9c9896d1a1e1733f80f8. 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/0cc110d2-7820-4bbc-8bab-e804ee989998.json and https://artists.proofprofile.net/proofs/artist/0cc110d2-7820-4bbc-8bab-e804ee989998.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 0x7da3645d3f391aaec85aaaf9b5a8cfcd50d9e6af061114041ea7d72c13a7794f. 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/FR2X41645091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454de5ba0d5a4c86193cf267a3eb37c3930130258f07a1f9cb09d210a45b8534. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/FR2X41645092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82454443100d866a3735878b1d38c3e83d1d80b5a8e4b8d69c4abdee8aad3b4e. 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/FR2X41645093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8283eb36eef04e52deaee5b02550967ec93e150fc56cd4e650a545795dea84ea. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/FR2X41645146.
Juwita Malam - Indonesian Nostalgia Love Song (Seri Ismail Marzuki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c6e433d033146a02697d3beb4642d80f3e74f856b37c9f755fc2ff3512a8d5f. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR2X41645120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfa1b2c05b0bbe6adeab35e20d0384238f3ecad70491f6c3e255eba4c705b2c9. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/FR2X41645121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd127ad637ee388e8ca88f94a485c2f1e745f5e966a64fc858bbd0b316836724. 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/FR2X41645122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf696f18547f93b04e4c2cfc1b4500f139e39bc9bd51af42e1793acb835bf07d5. 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/FR2X41645123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb80bfd05766ebe343707b18b5dd1cc35550d9404987e14bef6b98b22933041ec. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T07:58:42Z), 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/FR2X41645125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd301e14b7e631e96eb576a3c2151988455236860439d3dde4b66f17787f20a8f. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), 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/FR2X41645127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f545c6a2ae019cabc52a3fb76b88737840443a6f775c29c45b81b9c95a3d970. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/FR2X41645128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a13bdfc0054dff36fa22c2ccb4188f28bb287d511928d9ce958bdd0bc65633. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-20T00:29:15Z), 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/FRX202359817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ca529fcd550a67b7a0df5abd154d9d03f911a25981fd808c2e7677e4bf8ee1. 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/FRX282313055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8ff57dab23afb7b9563ca170ff265a130cea3ccfb9c5b2fd6b51f8d072d219. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/FRX202359820.
Juwita Malam (Indonesian Nostalgia Love Songs)
Bunga Anggrek - Indonesian Nostalgia Love Song (Seri Ismail Marzuki)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740a845fe15ba38e75bdf329def1f719b072533f1b5d90cc0d1b3f2b201b66ac. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/FR2X41645111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9079912581e5322ec0148a2e9364581ad21608426d95e43b01ff050bd963f8c. Chain 2 (Bitcoin): anchored in block 956405 (2026-07-02T22:22:35Z), 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/FR2X41645113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6159502a845f7b38f9cb85e71ad69e7bd10b51f932a3f119cc8a3894390ea944. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-16T00:21:41Z), 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/FR2X41645114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x714ef27fb1550df09174b2808f9d9ac87bbe4fb2d5f12900acd4d1e23f073aea. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-16T00:06:35Z), 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/FR2X41645115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2ff7928bc523ca18a581275251463b96af2631f1708fe2f72bf25e7e8a55166. 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/FR2X41645116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fa6cf0ed8693427761be97ca63b408d9484d96686fa7cbe21091dbd12dc2621. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/FR2X41645117.
Banyu Langit (Lagu Jawa Versi Bossanova)
Banyu Langit - Lagu Jawa Versi Bossanova
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f62dab0758aca64f5aed166d3648389826c7cb88528a4120148c3eb0ab11501. 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/FR10S2132678.
Pantai Klayar (Lagu Jawa Versi Bossanova)