Pith Number

pith:EXROVLA7

pith:2013:EXROVLA74ZUVVY5DB2VNPW6KIZ

not attested not anchored not stored refs pending

A Deep Keck/NIRC2 Search for Thermal Emission from Planetary Companions Orbiting Fomalhaut

Denise Kaisler, John Debes, Ryan Cloutier, Scott Kenyon, Thayne Currie

arxiv:1309.0813 v2 · 2013-09-03 · astro-ph.EP · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EXROVLA74ZUVVY5DB2VNPW6KIZ}

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	2026-05-18T01:47:50.188711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25e2eaac1fe6695ae3a30eaad7dbca464ee5c78918d641e31159840087d9f3ba

Aliases

arxiv: 1309.0813 · arxiv_version: 1309.0813v2 · doi: 10.48550/arxiv.1309.0813 · pith_short_12: EXROVLA74ZUV · pith_short_16: EXROVLA74ZUVVY5D · pith_short_8: EXROVLA7

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/EXROVLA74ZUVVY5DB2VNPW6KIZ \
  | 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: 25e2eaac1fe6695ae3a30eaad7dbca464ee5c78918d641e31159840087d9f3ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a65c584dbe94fe55ce95986eba2a3463bed8d7ec78bf7535059a106be0ff94a9",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2013-09-03T20:00:00Z",
    "title_canon_sha256": "c380c2028aa747beff8ac7636f65117549f546ff9cae810d6fe7bc58be5f8d8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0813",
    "kind": "arxiv",
    "version": 2
  }
}