Pith Number

pith:P55EP2QI

pith:2012:P55EP2QIL5POCHIOHKIBXWYVM3

not attested not anchored not stored refs pending

The Low-mass Stellar Population in L1641: Evidence for Environmental Dependence of the Stellar Initial Mass Function

Catherine Espaillat, Gregory Mosby, Jesus Hernandez, John J. Tobin, Lee Hartmann, Lori Allen, S. T. Megeath, Wen-hsin Hsu

arxiv:1204.3704 v1 · 2012-04-17 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P55EP2QIL5POCHIOHKIBXWYVM3}

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	2026-05-18T01:57:51.668841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f7a47ea085f5ee11d0e3a901bdb1566cd24447a15ba93ed0c472d723f00b735

Aliases

arxiv: 1204.3704 · arxiv_version: 1204.3704v1 · doi: 10.48550/arxiv.1204.3704 · pith_short_12: P55EP2QIL5PO · pith_short_16: P55EP2QIL5POCHIO · pith_short_8: P55EP2QI

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/P55EP2QIL5POCHIOHKIBXWYVM3 \
  | 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: 7f7a47ea085f5ee11d0e3a901bdb1566cd24447a15ba93ed0c472d723f00b735

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d57d0d442040f664506ad5d9942ec98d522f1f392fb4e52280ad6c3d06153f45",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-04-17T05:39:11Z",
    "title_canon_sha256": "c220ed2ffb842f788d8d321de19bebd59c42d94a3d5ec240e285ee532edd3e49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3704",
    "kind": "arxiv",
    "version": 1
  }
}