Antonio Antmaper, also known as Mulú (formerly known as Omulu), is a Brazilian DJ and music producer. Biography He is one of the creators of the musical style Rasteirinha, a blend of funk carioca
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 0x6b83b661ed000db7671923eca03ed2317ecd2cf24acaa7fe11c3afff55651a56. 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/1735401a-b26b-4a23-b297-dea41b27984e.json and https://artists.proofprofile.net/proofs/artist/1735401a-b26b-4a23-b297-dea41b27984e.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 0xf0b62e8a8128e9e60f68e39451d04241260e969edc956b856201744cd3f1f26b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/GBMA21948719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe4abaff7fc5aaa647f14f8dc9553067b43a6b1ce821d89b0d33dbd7f57f2105. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BRK1T1800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39da58b3019fdb51e63c85a648f1b11af4d535cce995667cf1a2d6b9a2eb030d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXXIP2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f2b6f10b430be666fd17aec76b3722bdaa2955f12b4c58543838117f7d3843b. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BXATA2100001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7a9cfe8dbcb35f58020263d0e8e04eeb8303b9484545002964e8cf230bf3db. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GX53U2011282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9e84b077c7109d83db1d98ac351437544439477fa752ab71680ad8689ee4fc. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QZH5R2000248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54517a5f074396d41e5fa57e7232016ecc8fdd6035e41d55ef923d3973ff0f97. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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/BRDEP2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf92346faf73206c7da1b745849540bb9d30cf65d85e97e5ebb6c242f4f392370. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GX3Q92178622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e73f2a15864e2034247e544f092b8664ab3951252d4d70d8ef16ca9a9073d9a. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/SE5VF1900496.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x903730bf491c216253de122d7b07393346940c271e161cc95b509c1d8a06957a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBLFP1868829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf683c85b0911f5e86ebf7ac7e65cdce1cb62a8c78588049318eac614516eb9d1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBLFP1793253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fa7a05213d631ce5c70ecb8f045ddd95ee8c0a45ffce37c4345d3c10bb5b06. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BX4RR2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc970f5db7566ec3ca4119390d4d38b4073bedf201e46cba1a6565de0f33d2f47. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USSD11600319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb6344e57e871d32bf42260d7580c964b2022a642714091712568a11a8fb3443. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BR1B71700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9e84b077c7109d83db1d98ac351437544439477fa752ab71680ad8689ee4fc. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/QZH5R2000248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c5d17626486b3dca6e7a7453c5e1f5c28591cff066ac5d979e42a7a327ee9c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRSME2401164.