Aja, Ajja or AJA may refer to: Acronyms AJ Auxerre, a French football club Ajaccio Napoleon Bonaparte Airport's IATA airport code Al Jazeera America, an American news channel American Jewish Archives
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 0x4b5f5dc69dc0eddb965deccb88fbe05dcc8a23d9d69470416d1a2f6e0421d517. 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/1c2c6acd-5ecd-4fda-a105-567beecba7fa.json and https://artists.proofprofile.net/proofs/artist/1c2c6acd-5ecd-4fda-a105-567beecba7fa.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 0xb9ab5663ecbb18d6d236f142b302a7e46617b72988bce7b4464cd59b9fb383ed. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZCE61895427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x616d9e36e190a0c8204c6e8d5142c7a33165f3e61d7d00113c601e45e2fc6d3a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZCE61895430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63d9e2ab8a6b904a2efe25edef26876a20b546c73fec0031779dd9a89196193b. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZES51830066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3512ed98de7290ed9ab1d236be20d5449f6e4ef420ab158aede557b1fc75b4a1. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZDA62191323.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc6875aa30840e7aa88f4399733312c6a465d57a4cea994c57e6b473ab85fb3. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZDA62191329.
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 0x0847916d410f49a82ac88078d706bce2fd0688dd6ea5f20347fa8d6aeb170620. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/QZDA62191331.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42ccbebd3d1c00195e8f961a4d9cab54c8541f28ecbf2aa6216b5b93a9f2ac5. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/QZK6P2373906.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3c55f568bf80edfcf9025d1563259d1c592d4dc76de6bc0d70b82f9ffd6f147. 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/QZMEQ2369894.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fcf45a31d72f98e14ea28dd63235a62a8f6029a0db360ccdc214f6ac80444d5. 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/QZTAX2356806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e7a175647c3fb40d5b05daba0f7aac9bee1738629dbd826ecdedb25350fd70. 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/QZTAX2356807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2df1c82bb38619ff6728117739d81e1eabcd1d36b4c6c3f0b0b2551c76d55ca. 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/QZTAX2356808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97763b4344942ccdf38714a0e5843857ae8c12ea92ec7f670fe6ca2402f3e681. 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/QZTAX2356810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e5117f1d3fc38bc1aef503e1a7d80beb3f7ab61cf257eedf663f076878ba88. 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/QZTAX2356813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9cf40220d25d6c44fdbf063f1da8192eb99ea1cffdcf8a826aa705a442ace5a. 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/QZTAX2356815.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92c4ebdc416322ffae8dcb1034144c3db27f9e5b63c156a188e687f0807de213. 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/QZTAX2356816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70787e35f78d3c584d8e591e6822d2039abbbbf66b63e800a48f559c916c80d9. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QZTAX2356809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf394f0c2c64a9fbcc4671174d5426c26b209e4e70a1b4efa39e53ef9a30be96f. Chain 2 (Bitcoin): anchored in block 960218 (2026-07-30T06:57:05Z), 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/QZTAX2356812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b268c83dfe79e8560168d89dbfadb5fdfa2145997c4601dacaf4a368b5dfc6. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), 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/QZTAX2356814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f6aa380fee01f9382b391081eb199013782d6795c8b443a9ad86c6ceae2ece2. 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/TCACZ1792377.