AJ, or variants, may refer to: Arts, entertainment and media Fictional characters Applejack (My Little Pony: Friendship Is Magic), a character from the fourth incarnation of My Little Pony A. J. (
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 0x211ca28712ca53f71384285de2da9d7b94fc9982f636301b3dcb3bbbc61faa53. 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/315feaf4-6af7-4c65-b87e-b9ba2a23bcea.json and https://artists.proofprofile.net/proofs/artist/315feaf4-6af7-4c65-b87e-b9ba2a23bcea.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 0x69fa3f4115b73da46f00fcbc45639ba7f9cdce50258ee85e794777ad3bb47c91. 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/QZDA52298217.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa6d8e3f815153f19af405356f1b2a31322f200e1cf6bd2d3a155ca8acf8b12f. 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/QZDA52298218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c9f8f9b2be2d4075fc88fc09cdd7ac82e155a5da7b762ee569c6f9b9a833d4. 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/QZRP42105136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4854c41b693e03b03c10388004a549662fcc829ac1bc70e5d9e5f23bdb556d72. 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/QZK6H2193455.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929a5fee633b1c1936716bfe7deb245d10d992ec4193e7cd415fb4f83a553383. 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/NOWUK2106010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f0b8880c879f6ce55f2a5f839e416aa9d606cb98ac5999e366601bddf26b2a. 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/QZES62129608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb4f1a78a87a48c67d40b988cffddb36413accfe74fd98124c0ca5c4572094a3. 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/QZNWS2036934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3804909c60e1d27c394edd9fbe5578b5d8072209a622769128ff4d29aabb15a3. 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/QZK6P2015018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4275cf5c3294d9fc9d1b56a017e0b41bf6df7db3cf7fc7d50fa0a6c7cb730bd6. 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/QZHN92088703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c62baafec5bd40e28988c50e249090d0ac2ae8799c5706ae44e0405fc608192. 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/QZDA82011524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe167781998c41aba9df5e3023fbb5032ddb0131a680ea0c187b8a1c07dc8355. 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/QZK6N1941760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb60b16c0895f2686627ab44043d0c48e0d93d434feb9029b4b428158db4e92b5. 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/QZNWU2345595.