Pith Number

pith:42LATX25

pith:2001:42LATX25TQPKKG7CMG3VDMA7NG

not attested not anchored not stored refs pending

Discovery of X rays from Class 0 protostar candidates in OMC-3

Bo Reipurth, John Bally, Katsuji Koyama, Ken'ichi Tatematsu, Kenji Hamaguchi, Yohko Tsuboi, Yutaro Sekimoto

arxiv:astro-ph/0103401 v1 · 2001-03-26 · 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{42LATX25TQPKKG7CMG3VDMA7NG}

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	2026-07-04T16:22:55.873504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e69609df5d9c1ea51be261b751b01f699812529894d3a29d06ed2c2b1c7a08bb

Aliases

arxiv: astro-ph/0103401 · arxiv_version: astro-ph/0103401v1 · doi: 10.48550/arxiv.astro-ph/0103401 · pith_short_12: 42LATX25TQPK · pith_short_16: 42LATX25TQPKKG7C · pith_short_8: 42LATX25

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/42LATX25TQPKKG7CMG3VDMA7NG \
  | 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: e69609df5d9c1ea51be261b751b01f699812529894d3a29d06ed2c2b1c7a08bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "885371c65fd43f5d0c9202b54eaffbcdf48f898ef23775753e87e00e90b8aa56",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-03-26T02:07:26Z",
    "title_canon_sha256": "e8d5ac3fa4d5ab9b2f554ab78e055cc9b40bba49e0592c472c1a74bfa4945e33"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0103401",
    "kind": "arxiv",
    "version": 1
  }
}