Max Surban (born May 21, 1939) is a Filipino Cebuano singer-songwriter. He has been given the "King of Visayan Song". Although known primarily for his singing of novelty songs, he has also recorded r
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 0x0878c964036e5fa691d73413d0d4db86c37712096a5c3bc833504ba61695ffcd. 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/f7cdbaf5-17cc-488e-a576-4f03c02d7e7b.json and https://artists.proofprofile.net/proofs/artist/f7cdbaf5-17cc-488e-a576-4f03c02d7e7b.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 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 0x163e509ffdc83506e271c6d0a3f82bf7f05e72e4c6cb95cff115d7312efcf2bb. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/PHS099600019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc44713205ad8e587381e632defab7d400be037cdb9b56c6860b08c5566c12d90. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/PHS099600020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf81f2b0cb7beda7a7850ddb18c5e953a3ec2d6a1ecd92b5687fd348851b081d3. 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/PHS099900417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af4e074dcd1dcefd826b5eb846bab2e68aabde6ee547182975a0b0bd9dfa5b0. 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/PHS099900425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c85f8532540df850db909d34f2d50b6f01bbd3b86b7661cc4576e39ae12a130. Chain 2 (Bitcoin): anchored in block 958399 (2026-07-17T10:39:51Z), 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/PHU010308035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39490b454479fb585846694aa18f89b3999579e15a954c77f38e39cdca4c4c10. 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/PHU010308036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7470744bdaccf3ec258e4761a53e026fd640c92cd83059ee019091b567984059. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/PHU010308037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6492acc11cee7188fffd81891be63206b165997e72e9235a1d4d19594d04ed91. Chain 2 (Bitcoin): anchored in block 957714 (2026-07-12T14:35:57Z), 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/PHU010308038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x549440896420917ceeda0c3c8510f9fa577427dcd20b4e2253c0b2d4e6064bfc. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), 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/PHU010308041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x468f5c4f0debfd5e1f7c1025dec8729c556b00388bb39b9f1f759509216ed9b6. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/PHU010308042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf69c3db729bb235f26d219db33915c6efb414e4b8abdd49a7d97cee4f563b660. Chain 2 (Bitcoin): anchored in block 958969 (2026-07-21T04:58:13Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHU010308046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe274c8854e812fa36dba5a04ceecf52a380ab375d83da90f12e314ab6b8ed032. 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/PHU010308048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2c142015f268dd9d1fc08b87964d70a2a5cb00cc310851829546b4e9f024947. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/PHV021013118.
Gutay-gutay na ang puso ko(vicor 40th anniv coll)
Gutay-Gutay Na Ang Puso Ko(vicor 40th anniv coll)
Gutay Gutay Na Ang Puso Ko (Vicor 40th Anniversary Collection)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6060d0a419533fc0f477930ee89b3134bda163ee8df324cedbec7ef9a9f0fd05. 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/PHV021011635.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e9258c495f48591f90cdcc6049d60f2cb1a0f21e66db5f238a4a84ec55f801. 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/PHV021011638.
Re-Issue Series: Medley of Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e4cb5522af43a4e8dc2623080256822d0ca0b058c8ddbefdf69e51f6768124. 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/PHV021013115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10893f87f92fc1883ee05a9ab8f614e24b3c0122bf1fc2a3cf191f662ccc9872. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/PHV021013116.
Re-issue series: medley of popular songs
Re-Issue Series: Medley Of Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee5f162818a55202d43bd1880615ce71aed1ded619bd7ac6c62fed8a9b4069e5. 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/USHM21445101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65fa2315c3f44b14bf2dee26d16dbc1d7013fcdbf49d6b08bad5165ec3f424af. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/USHM21445102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1da3b899d0ba3762243c6460e72579af2f850d051c4e2fe96b4c0253abbcf024. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/USHM21558865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x614a14eac98dc27a4bb5c266a42eccc8bb5bccc00d753462e92fe6085e20ee7d. 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/USHM21558870.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06e62f8b1e3dd73befde1e63e3ce107b558f8af96491229e8fcd3d14b27744f3. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/USHM91625718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f7f40d858b09a2a13c122e0e39da23bf63acf9ad67f45ed6ccd922344e77d1d. Chain 2 (Bitcoin): anchored in block 957620 (2026-07-11T22:32:56Z), 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/USHM91625720.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bbe71d22f0c44d40d79c59e780a50fea9c9249c44853f7826b02b34add9c42b. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/USHM91625723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b4efc34a9a8536738cb4706738e4b95aa3fbe5d318ba767e3c4fed3765c0bd. 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/USDY41910202.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcf5ef65c020ee754314b6d49f458c983cf82fabc4944a4e57f350e30b9d2ea1. Chain 2 (Bitcoin): anchored in block 958263 (2026-07-16T08:19:47Z), 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/PHV021011034.