MICappella is a Singaporean a cappella group. They made their debut after competing in the Chinese edition of The Sing-Off, where they won second place. The band appeared at National Day Parade 2018
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 0x5cd309f2cb6b6f33afbd5ccb2e28d1133920a13dbaac8e673798c0153b4811a4. Chain 2 (Bitcoin): anchored in block 953657 (2026-06-14T16:43:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4f417fff-468f-4064-9719-56da243a394e.json and https://artists.proofprofile.net/proofs/artist/4f417fff-468f-4064-9719-56da243a394e.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 0x254ddceb56da9479e2f4136b8bab8243d58a99530b02f15e2cd0fee1aae4d663. 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/SGB242000381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44289a0564f522e3a1173ab98827b3f0b6762e339dbf2cb3f5d359ed060f5678. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T08:40:13Z), 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/SGB241500032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfce286f1d607a83a2a590ff41630ace5be556f2adaed7d43e95fb3b3de34d96. Chain 2 (Bitcoin): anchored in block 958404 (2026-07-17T11:34:58Z), 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/SGB241500035.
一帆瘋順 CRAZY SMOOTH 新年組曲 (MICappella麥克瘋 X 暴牙菇)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4156a6491b5e503ae0fc66b8c93638b22447feb0c7bd791ca194ffe5204802. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/SGB242501767.