Pith Number

pith:CEQN24YS

pith:2019:CEQN24YSLBLDCKGW7YYIZI2YW4

not attested not anchored not stored refs pending

Biofluorescent Worlds I: Global Biological Fluorescence as a Biosignature

J. T. O'Malley-James, L. Kaltenegger

arxiv:1908.04089 v1 · 2019-08-12 · 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{CEQN24YSLBLDCKGW7YYIZI2YW4}

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	2026-07-04T23:53:20.601267Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1120dd731258563128d6fe308ca358b734eced106a363b919311bbd15fbfed31

Aliases

arxiv: 1908.04089 · arxiv_version: 1908.04089v1 · doi: 10.48550/arxiv.1908.04089 · pith_short_12: CEQN24YSLBLD · pith_short_16: CEQN24YSLBLDCKGW · pith_short_8: CEQN24YS

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/CEQN24YSLBLDCKGW7YYIZI2YW4 \
  | 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: 1120dd731258563128d6fe308ca358b734eced106a363b919311bbd15fbfed31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f43121a40457f12ba22e12127a40b2fb0d281273c767464baec0143db1521f7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-08-12T11:12:01Z",
    "title_canon_sha256": "06732403377cd8eb99fdd0afc36c7ac44bf90c81fe2453cd104b3ca016cd7e52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04089",
    "kind": "arxiv",
    "version": 1
  }
}