Pith Number

pith:EKQUAOYE

pith:2008:EKQUAOYE7RZYFYCIEGPL5CI5WD

not attested not anchored not stored refs pending

Star Formation in the Trifid Nebula

2), B. Lefloch (1), CSIC, France (2) DAMIR, Grenoble, J. Cernicharo (1, J.R. Pardo (2) ((1) LAOG, Madrid, Spain)

arxiv:0809.2023 v1 · 2008-09-11 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EKQUAOYE7RZYFYCIEGPL5CI5WD}

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	2026-05-18T02:15:34.833391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22a1403b04fc7382e048219ebe891db0e127974e3c2ab74e20151940efd235b6

Aliases

arxiv: 0809.2023 · arxiv_version: 0809.2023v1 · doi: 10.48550/arxiv.0809.2023 · pith_short_12: EKQUAOYE7RZY · pith_short_16: EKQUAOYE7RZYFYCI · pith_short_8: EKQUAOYE

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/EKQUAOYE7RZYFYCIEGPL5CI5WD \
  | 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: 22a1403b04fc7382e048219ebe891db0e127974e3c2ab74e20151940efd235b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bdb8e72680b2a08e8b1fc6267a338632559c408117f3e8fe7deefbd94c34813",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-09-11T15:30:06Z",
    "title_canon_sha256": "7ec43904980a85e899b247d810d0997dce7e45b3a306e4851f55bac16f7a0fe1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.2023",
    "kind": "arxiv",
    "version": 1
  }
}