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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe2adae0d1b94063f40acfa6779edf2e157b50e90d910a1b70aff8737be699d. 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/05b186a8-e4d7-4c57-b54b-efc1a7828d5d.json and https://artists.proofprofile.net/proofs/artist/05b186a8-e4d7-4c57-b54b-efc1a7828d5d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7cf828d097f697db4a01fba357ebc9993ee67fdb84180360ad8e51868f91a8. Chain 2 (Bitcoin): anchored in block 958369 (2026-07-17T05:20:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5BU2199812 — a six-check JSON result.
Mabuhay Melodies, Vol. 2 (Instrumental Version)
Mabuhay Melodies, Vol. 3 (Instrumental Version)
Mabuhay Melodies, Vol. 4 (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b82768589f573f2f54ab1bf16185f2342b68ed9bcb6d724fb44570cc2b429c. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2131847 — a six-check JSON result.
Mabuhay Melodies, Vol. 5 (Instrumental Version)
Don't Stop Believing - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe639f94248e9139f350adc109df108bcb6af02dfa4fd7ea6692592c817241a55. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6TI2176079 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38082b684204b5568cb3531ea72993669b1471be74c8031082d9abab515095b9. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2173777 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62295d8f39b43772cb2364864ecc7f7530f2c0979be065e6709c94948529720f. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2173778 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a0e657e715e4fa40ea36987936b941c916108a5bcf5a551b8ef8dac85cee8cb. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2173779 — a six-check JSON result.
Huwag Na Huwag Mong Sasabihin - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55bb9b04ec8a66421c23823df226ebb49cb5f9e446ede50bd06defcda7c69c99. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2173782 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d86a20b32e315adc6afe0304391e6b10ae1c8e4b8b2aab6d004b9c133636f1c. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2173783 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9890a3788e70aca438eb0ce6aa884c1d872ebebc7da448fe0e62cd2325f1eced. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2173786 — a six-check JSON result.
Pare Mahal Mo Raw Ako - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x598911f7b7fca57b8ce1ba40a101c93fb3f7de5880b4e53fef0e16e4491a7868. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2173791 — a six-check JSON result.
Please Be Careful With My Heart - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e9fd14abff3f88c0ac5494826e74fc1590d9e82af75932b7427316b3e58378f. Chain 2 (Bitcoin): anchored in block 956620 (2026-07-04T07:11:13Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2173792 — a six-check JSON result.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe214e880a9a53058e072695c6e0bc59ccacf3b4a7e8f9fb0d0e4285545568367. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XW2173794 — a six-check JSON result.
Mabuhay Melodies, Vol. 7 (Instrumental Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97b57370cb1ca3bd7d3b2859dced379314abf83133566ccc6661568b99526a36. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6I32277920 — a six-check JSON result.
Mabuhay Melodies, Vol. 8 (Instrumental Version)
Mabuhay Melodies, Vol. 9 (Instrumental Version)
Mabuhay Melodies, Vol. 10 (Instrumental Version)
Mabuhay Melodies, Vol. 11 (Instrumental Version)
Mabuhay Melodies, Vol. 12 (Instrumental Versions)
Mabuhay Melodies, Vol. 13 (Instrumental Versions)
Mabuhay Melodies, Vol. 14 (Instrumental Versions)
Mabuhay Melodies, Vol. 15 (Instrumental Versions)
Mabuhay Melodies, Vol. 16 (Instrumental Versions)
Mabuhay Melodies, Vol. 18 (OPM) [Instrumental Versions]
Mabuhay Melodies, Vol. 19 (Instrumental Versions)
Mabuhay Melodies, Vol. 17 (Instrumental Versions)
Kahit Maputi Na Ang Buhok Ko - Instrumental Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e99ba8a6aebf8ef6a919ab96b123bbfbd502cd24ac11e0e2056e9ecf1476c6. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XY2311430 — a six-check JSON result.
Mabuhay Melodies, Vol. 20 (Instrumental Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd7235b72e7f3c732062bee5b0ab95f0eb2a2d2f6bac78945f1e9fd160876228. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6SA2328960 — a six-check JSON result.
Mabuhay Melodies, Vol. 21 (Instrumental Versions)
Mabuhay Melodies, Vol. 22 (Instrumental Versions)
Mabuhay Melodies, Vol. 23 (Instrumental Versions)
Mabuhay Melodies, Vol. 24 (OPM Piano Covers) [Instrumental Versions]
Mabuhay Melodies, Vol. 26 (Top OPM Hits 2025) [Instrumental Versions]
Mabuhay Melodies, Vol. 26 (Top OPM Hits) [Instrumental Versions]
Mabuhay Melodies, Vol. 25 (Instrumental Versions)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91c73eb3282d0d99fb23ddbd1f13749634a598ac27b9d3dd830ba02300190bd4. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE6XX2554266 — a six-check JSON result.