Pith Number

pith:5PT6FWYA

pith:2022:5PT6FWYAOWOY4ZHRBLQS2PVYJD

not attested not anchored not stored refs pending

NEOWISE Observations Of The Potentially Hazardous Asteroid (99942) Apophis

Akash Satpathy, Amy Mainzer, Edward L. Wright, Emily Kramer, Jana Pittichova, Joseph R. Masiero, Roc M. Cutri, Tommy Grav, Tyler Linder

arxiv:2204.05412 v1 · 2022-04-11 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5PT6FWYAOWOY4ZHRBLQS2PVYJD}

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	2026-07-05T04:13:57.807364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebe7e2db00759d8e64f10ae12d3eb848f9b3097f2d437e282d75914eed1edc31

Aliases

arxiv: 2204.05412 · arxiv_version: 2204.05412v1 · doi: 10.48550/arxiv.2204.05412 · pith_short_12: 5PT6FWYAOWOY · pith_short_16: 5PT6FWYAOWOY4ZHR · pith_short_8: 5PT6FWYA

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/5PT6FWYAOWOY4ZHRBLQS2PVYJD \
  | 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: ebe7e2db00759d8e64f10ae12d3eb848f9b3097f2d437e282d75914eed1edc31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4d9bbe63464737ad06c892cf750ae8cf63ac45e2a9a3c43cf86893f9a28fa15",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2022-04-11T21:09:09Z",
    "title_canon_sha256": "67639649e2a0024453a23a3402abd8ccd21192dbd7ecc6560f0e9fb1ab0bbc60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.05412",
    "kind": "arxiv",
    "version": 1
  }
}