Macaia is a village in Ancuabe District in Cabo Delgado Province in northeastern Mozambique. It is located northeast of the district capital of Ancuabe. References External links Satellite map at
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 0x84f7974f4d38b1f5bb7fdb0a004ea6e93c34a085b819a284d864176f146ea60b. 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/6ece2f5a-8515-4a45-9a0b-bb2413c843a3.json and https://artists.proofprofile.net/proofs/artist/6ece2f5a-8515-4a45-9a0b-bb2413c843a3.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 0x41df1cc57c7e9ae8b3ab3d2b547989ca3f3c06bb66d05eac0ead9bce86b636b9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BX1TU1900009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc366eac1b2bf4868ec6440b17ae6f0fea16d4ba528011f09eb670c854d120183. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/BX1TU1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d3448b8752486c489769bcb201b8651b2827028e5016b32f7e1fc4b16f6a2e5. Chain 2 (Bitcoin): anchored in block 958639 (2026-07-19T01:18:30Z), 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/BX1TU1900012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c90a2e89ac349b6603cdeb321bd654f92922ba3b8ee38932f8cd96dc3a3fc2e. 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/BXBH22000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f76ee921149160349235aa5309c7af3b28afad4f41dd7d2428fe3cf39ea58d6. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/BXBG42000012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83c32473cc44e326acf3d29061e31549faafc84ab58d269ddd849508ea60500. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXBG42400002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcccdd9a3c749d20358dbcabcd33d06d806726f42bd492d4f0ead4481f42bfdf1. 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/BXBG42400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeba94967ac56ad2de0de060060c049a723a364d56e0be3c39228eee64938839. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BXBG42400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79f702e3b6b21c49e95eca3a8a1e9606edb75bca8c48a7572c6012147df5c70b. 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/BXBG42400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5771eee7f47085468d26ca2914bf9fc89ea7a70bfa7866c06f82ecd025b1c855. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BXBG42400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfa94e2ff437f7e6a29224f6b872990dcd40d4a6a88f1515a5e599d6d640cc18. 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/BXBG42400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c9a71367096792723ab613fcd3fba14c29d3734c0b0ce66660d2c2ca9241551. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BXBG42400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27623358ce13cd89873504490251f15afa4903ebe9bde02895ca62414e3a8069. 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/BXBG42500001.