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 0x16fbd7b6a1dd9cb6570dc3acdc44661a5b619d3f50ffe551ba4b7d87e8b4e2f0. 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/2770c543-2832-42b3-8bb8-ae241590765c.json and https://artists.proofprofile.net/proofs/artist/2770c543-2832-42b3-8bb8-ae241590765c.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 0x66e46d7833c6c9224bd4afa31a0113a4397140b883d5119b8f41f87e91f13716. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FRX872158631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca52b047e29bfdda6bac0df52432970ca1a39f2679d836b9f6ec73d6642925e2. 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/FRX452179144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85e162c4e5325e35b9cded6ed785375ea823a0471dd0f865455c9ac4a37b741d. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FRX452179143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474b7329b1e9d170dea9acee09a3976713f860d9d80a17c0f44d0e09468a5eb5. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX762117165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a7de6f9f1e6d0ef7f9f5885d8283705d870a579d0c9fb388e3d42c6b7730a68. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FRX762164675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45809c4d6adbccf7aa38f3a47de1ca3f9f981700281775f1c1958775d8a6e497. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:49:34Z), 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/FRX872140125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e46d7833c6c9224bd4afa31a0113a4397140b883d5119b8f41f87e91f13716. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FRX872158631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7010a47504df130e65c6222d59174aaa9939f50bfc33757396e7e3231441c6. 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/FRS182107400.
Hanggang Sa Muli (Emman Nimedez Tribute Song)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe49cf1abf932b756b32ac9db492f3c085debf1e27869553c92ece8c8c9a12072. 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/FR59R2273916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83bd84ececa654c6d7173b6f52ad33e6e07d78596f8e9e5082de179b908398ec. 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/FRX202278436.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4d490cbfac5e94d75c63fa859575e1facdffb8ce1526c7332a293c432e0c7a. 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/FRX282240996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b392609c674b651591b629151a0bd9b1b715299401655870586dcd2987b748f. 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/FRX452256968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x908ed59815c9da492089c7493757ba310ec806e5f113dbadb1834fdc2ab5d6c0. 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/FRX452256965.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b2c4ffd557f127b05f68892f452642357e1f311836da4f5a3ce324ad1256eff. 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/FRX452256972.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85db5b3254353745d3a2d6cf2967a31c82ed493e1d15ceeafa077062f8660efd. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FRX762272364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9819828cf7b5638a99ad14f0fd1102f284dd82ecd7fbd0e68c6d7c6f6085cb53. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZFZ32515108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a1ccc9fc45a3fefdcfff7fa7b732415f8d5bfe37b5f8baa91fe6185aec53249. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZES72507577.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93fe7ef9818e22c0bb4036f7b0e24a71b8d109f857431542a05ad568b3ed6309. 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/QZHN92525141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe929519772b636e1950733c7d044de77473ebce2e38f87704c9f0bfed9af0a67. 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/QZHN92592033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3fce5636257628f25e3cd924cfcf6c55b5e95d71065ca1c7f6ed0760cbf52ba. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QZHNC2565383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06b42a1e082cb4f65edccb3707e2bcafa8b4a8f78c8c886087eafb2c1f86020b. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T12:26:15Z), 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/QZK6N2540552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51aa4ec7fd917c9d8e6b2c3f5bb830855e49eb652e7530fb63ded2c136b3c1ad. 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/QZK6H2591321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc222bb278abab328f4c104164f0656c548e00cad38f263f0595724f51853dfc3. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZTB32546920.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3b3f898706c453b14a4f527c6bd08f106e5bea89f0216f9de0be89a2d250e9. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZTB82531937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf829b4ba14ffc493bfda3f1f59ff14d971cbcaaf26b245c447cf65728c365b96. 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/TCAJY2573017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3bfbbd024445229122a64d6ef6d760bc58d13cd9b73f90cb8d9fce1009b0edc. 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/TCAJZ2500413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674ac226cc01b984b6878b54895e84f982fbc5e3c8b9c30d46cee0ca54b1055a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/TCAJZ2563640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ed4fba99e6c0780beb87b6183cee15111f2538391a29902cae251d796ba3f2e. 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/QT65W2515731.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f99a85087f35ccf6466ad65910d0d2036a6422a2d81a6bc9c23ae9a49720753. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/QT65X2560846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92851bb2e06b05e94022b06f6f17e8156b0f579495de7e2f7f833534c22b7849. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:28:34Z), 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/QT65Z2590747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d1c528bddde1ef1f39e6c9a595a26f37d989393dacf817098f2a381028ebfaa. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T09:43:53Z), 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/QT6622524027.