Dande is a municipality in the Bengo Province of Angola, with its seat in the city of Caxito. It is the capital municipality of the said province. In 2024, it had 145,798 inhabitants.Angola: municipa
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 0xd42f1f7977082fd52f6778a12b2022f88ed77747bfd621e6b4440facfa67e8db. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dfdad1ab-fe8f-4604-9258-ce5a2a3ca5b2.json and https://artists.proofprofile.net/proofs/artist/dfdad1ab-fe8f-4604-9258-ce5a2a3ca5b2.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 0x2c2e5e3ea78abaf7780e4c1c04d67044fddbafbec7083078a81da5e7ca16a939. 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/UKACT2270592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93ca8e2c26e799be84d0ba116caec368aa637e0f2ac26cabff74d2520f13f75. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USANG2190608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ac82dd77c2e6f90bcbfacc3901ca59c455bee2f76da730eca3f100c6d47612d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:57:03Z), 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/USDY42517697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43587efc5d617b514a531043dbb26abe45085044bf040492fd87f63f5a3926b3. 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/US7VG2514462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe85b937578041acd8a39dfb471ff720decf1cd1f66aaefb904642b4de77c8c5e. 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/USANG2483657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7767d094e1cc216255173d5cd76478ab87654474146a87ea921f6b78c94030. 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/QZTPX2462592.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f950f668a8584d283309d0a7fd37d4eb63ae6a1a616076f262c2df00a378899. 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/QZNJV2497113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0154db765c9a7e9ac7c040f0b157e6fc268c3c3410ad68353adec30ed1e97ec1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/QZW9L2394674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb5da574e1bcfc104c8d4d7e1e6b912437093e93345f7f881a69f706bcd04bc0. 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/QZTVM2349451.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6df282aaef8f4395aa75d981eb32d095b1af152deb0e2b431a57b606ac8f4d61. 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/US7VG2330611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cc538bcb1f5c0fb472e59241e2dad230546ecb00cd8b6dd5abb777bea4ab274. 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/US3DF2250839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3488f79db2acff8a81f75a3d186a8a89c4aedc2df17f0dcf18387a34289f471b. 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/QM3DF2186305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb83233cd027a9d118b6b2e0bfdeb44a5b9105ab778a32bc8c6de4007ce723850. 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/US3DF2190175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d83320d6274d7e365e84d04c16af684591f35102a520753e534de77b3b4a7bd. 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/US3DF2136104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57bd555399a5bd71ef6c98811c2e8f2a7811d6b85ebc20f2b59aaa6388979057. 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/USANG2170891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94cb1229ab8407e40c8ea9fab715ad6c7a00ac7719723f4821caf52534667a9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USANG2128911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05f078000b64b943a9776b740a759efad1fec62f1255c283eb8d4902a87fc75c. 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/USANG2115616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f026c0ca81b4f762ea1a8e5e2ccbc2263d641cf06d0c50fdb17dde70a71d454. 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/US3DF2047818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78270a6e97c59624725ffb192958f11d44b813dbcb13c4c957c9cf81f9cfa9b0. 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/QM3DF2000849.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x336a339ccd238a3cfc9f9db628e7fcc5e67744413a9ca211023331a03233f3c6. 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/US3DF2047761.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa4c10f65090b53e60243a48272bc73ed14980493c88ae9bec538d44a53b73a. 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/USHM82068183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd6770fbe628af8b182aa13a78652ebdf615242cd614cee8127b7d542d647496. 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/USHM22040608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8ff9911efd8f68616951f886b4c856f67c1378b1f3a2cd38b0c30647207a3698. 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/USDY42024217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8d896b99c5f26c35ba49369f4e4a7a5b27c8c78c2c6b45ca657c6584b8da60f. 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/USCGJ2084158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ec1574d29d992054fdbc2020d5a7ff394a70f9a8e1896d7f28c3c41b9df6f5. 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/USCGJ2032806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cdff9ed17a89771471810a1620c23df5de858cd08ea40f98ed57217b9dce581. 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/USHM22026024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3c6472e18377bbffcaaf80519fba74382c6dcdd64b7e0316ea4803f70285d1. 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/USDY42064329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17acca40558790ae5b32a909b9894268c27a6c059a86ae8fc0003827abe8e443. 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/USHM91959468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda038bc3e3c1c9ab4929050b51cc297cf4f783121279a8dff44fefb5bcbb3f67. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GX53U2012463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5e0783e0e76186b035c408e18deacb05a84721a61fbff1cc7b6edfe3824e3a. 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/US3DF2065666.