Pith Number

pith:QJOQPIGM

pith:2019:QJOQPIGM6P7YUWBUKXHWRRUX3Q

not attested not anchored not stored refs pending

Secure Authentication of ADS-B Aircraft Communications using Retroactive Key Publication

Ahmed Abdelhadi, Miao Pan, Pavana Prakash

arxiv:1907.04909 v1 · 2019-07-10 · eess.SP · cs.SY · eess.SY

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QJOQPIGM6P7YUWBUKXHWRRUX3Q}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-17T23:40:54.549927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

825d07a0ccf3ff8a583455cf68c697dc1f2d19805f7c22dc909776428ac8d9da

Aliases

arxiv: 1907.04909 · arxiv_version: 1907.04909v1 · doi: 10.48550/arxiv.1907.04909 · pith_short_12: QJOQPIGM6P7Y · pith_short_16: QJOQPIGM6P7YUWBU · pith_short_8: QJOQPIGM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QJOQPIGM6P7YUWBUKXHWRRUX3Q \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 825d07a0ccf3ff8a583455cf68c697dc1f2d19805f7c22dc909776428ac8d9da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20b809eb11b7707f99f3df6b46e9ce8493f7a4797056248473e32f2558829601",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2019-07-10T20:23:58Z",
    "title_canon_sha256": "e8b9e1d37bacfdd365233397d861e6e2ee26ebdc99beee99a261b8f8fccc4baf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.04909",
    "kind": "arxiv",
    "version": 1
  }
}