Princess Azula () is a fictional character and the secondary antagonist in Nickelodeon's animated television series Avatar: The Last Airbender, and is part of the Avatar: The Last Airbender world. She
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 0x24a0b19bb92f4e497b1e5fc837e1197d3a1aa81f1f483997af00e671fa077653. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc2c7f46-e2d5-4836-bb5f-99a1563c776b.json and https://artists.proofprofile.net/proofs/artist/dc2c7f46-e2d5-4836-bb5f-99a1563c776b.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 0x89b5e1acd8af118b64f9a66d5c93563d01d62a9d2a3321067832ef160d62cb90. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZES62159222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724c9a9e6fc1be38911e191ec5f9eda65112b9e4f61c0d8683b3ad71beb08ab2. 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/QZES62159207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb39a225f188f77da884e27689d1e2527258a07d612ec8807b81d45a967e5159d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZES62199535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c3b8d2ee11746ccaa336939a37599dca8e4aa5c51073bcbec3823570f8fac4f. 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/US3DF2233179.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00f220b3a13f45af9f5f2bc493f8f8800298b620ba0cceae30bb2a39599f75f6. 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/US3DF2233186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb8653a55f28be8ea601e17e5f64dbda72d829a87a42ead494ad1e79d2353ea3. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US3DF2233184.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cb560d15034675ede8ba60a358fdfb5d15df65a03e244a1343865f096cdd1dc. 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/US3DF2233206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a255ae036360176ea44e14ffe977f525cf0f8171b105d5438aa82d6f12256e8. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/US3DF2233182.
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 0x3f58f523b85e9c6e6b33979ebd9b95c173fa0ca4ae46cbe69ec7a18b8ceb97b8. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/US3DF2233183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2acc0367f5fdd4439a525b7038da77a7ece74d5dbc792ab58c7f430d1a07bc0e. 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/UKZGC2406303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf39cc75dd506ee85cc0e92db28863adfe50427f4ba9a47fc09f2c7cae78a4f00. 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/GBLV62108138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea7aeeeba5da8d7e5744179f71c37ad64daa2759ce5ccce98e5ceb93f25a4de4. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/GBLV62106363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf48c37ce5f361b95442e28846c0e3f75f75b9e173c3598e557fedece400d7dd8. 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/GBLV62106364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2219a47af2f263d9db0c5c2d58e448654b914cc31df86a10ead8f7d795abd4b2. 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/GBLV62106365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a46e97ae54234251aa8fc707025bfa5307655a7d7651c39fef02db362aad17. 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/GBLV62106366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fced7ef00bfbe30fd7a0615904275b47668c5b40c06112d4cd744cef44453cb. 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/GBLV62106367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa919906ae3bfef4417da15a7f936f7ca03c85e56a08b75bf8bc7c11a773723a. 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/GBLV62106368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54edff3a95238cdbc86711b6d89ef14c6c0ddc66bbd24f04b1beba84e1d9deaf. 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/GBKQU2122006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24c56cd318f02712665832de4388767fb48607c33581e8cb8567653f51e96fa9. 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/GBKQU2122013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42b6ce1926ff9ef65bc7cc7e792c9853eadb6c211e2f255c54761ababe2f223. 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/GBKQU2101987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01449c2089e138f272c2b476cc9239c6bd34a46a37c905284b72a4f8ddf3ac91. 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/NL1LE2001694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x473905edf78905556583e97635426b1f5011b31e852cf4765d0d33d0c0638d8f. 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/NL1LE2403645.