Toza is a corregimiento in Natá District, Coclé Province, Panama. It has a land area of and had a population of 2,071 as of 2010, giving it a population density of . Its population as of 1990 was 1,6
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 0x8e76d8b5e05067aacda090fb78ece9f4d82114db4b4d0be0f9b0987f46da5cf2. 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/01ed7202-f3af-4dfe-84e6-9cc1bea2d380.json and https://artists.proofprofile.net/proofs/artist/01ed7202-f3af-4dfe-84e6-9cc1bea2d380.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 0x9a8777a6439b9ebf6019fc4f9881734c15082d9a26e0daeb8fc61e9496963af0. 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/GBKQU2381158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x933b1709a0a8677db396f7051554515282a0d569ae6cfe270564e1173ee53b8a. 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/GBKQU2461109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x704968cef89841cdfb0b51dd7bef97571e98c5660284b367c219e8c535016d95. 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/GBKQU2352681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb481e64aaaf5af58b333db7f2d9590265d58e6ca542141d8dfa4ee3553ca8888. 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/GBLV62323342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1becf051cf3524824f25002a64aa79799284c6e2109169910c6e50073a7c315. 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/BEB682400608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4634a62000842e43ee8b74ce7d1b0f1671fbd80c3d310bc70d4948f7e7230f4. 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/BEB682400548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12a7289de9ca72b87ca51be818c3f603684356ec5c538cf5710c329ece43e94. 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/BEB682400419.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31064ed16578a8efc14da221cc4dc3e59a6712c9db3a33ea6100de90f0a22b54. 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/GBKQU2441702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf321b0d1db1ca0be76192db71b1c0e1efa6dccf9128b712249e31d4fc660caf6. 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/GBKQU2424121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x043150f901d4b27feaa73b3d210076bf8d6e7384b61a605c4e20b2a16111eb12. 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/GBKQU2406501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9ec167463f4aab415320b5955f04c7931082123bbb17298859a1aa7f7acbdc6. 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/NL5HJ2400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9968ab71b3cc356cfeffb37315577e0846ccf3a905ba67589937eb554674bd91. 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/BEB682300747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0dd80c14a21d6384d0595c94e89e8468b431e423fbfdfa9088ed3b5b979b7122. 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/GBKQU2397374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc4ea27acc588c65afa0312e1ac01bcf0721112bac2f9018906d4e066b400bb5. 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/NL7EN2300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fdcad017c74235bda672dd23e7b29d8a11649301bd54564e3cc073c6f1d12fa. 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/GBKQU2359396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2107dc0f182a4597fa72777fe20af68d664abf9d73eb252a2b476c85263c0383. 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/GBKQU2357077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2a35a8cd24ead6cab7835902c028ae8464c95553872462b53c067f1ec25d5dd. 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/GBKQU2322911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x107fe985249c0bd0d3b1c461553c351fed0a0c0c1792fd54afa3682248d19569. 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/QM4TW2315097.
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Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x266690cc1b708eec11e55c0984ecd81e1b2e17e273853626fc93cc1669e672a7. 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/BEB682500286.