Pith Number

pith:USIEKXDX

pith:2012:USIEKXDXWWDK5YACO2V5HV4O6H

not attested not anchored not stored refs pending

Mid-Infrared Extinction Mapping of Infrared Dark Clouds II. The Structure of Massive Starless Cores and Clumps

2) ((1) Dept. of Astronomy, (2) Dept. of Physics, Jonathan C. Tan (1, Michael J. Butler (1), University of Florida, University of Florida)

arxiv:1205.2391 v1 · 2012-05-10 · 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{USIEKXDXWWDK5YACO2V5HV4O6H}

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	2026-05-18T01:57:33.590430Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a490455c77b586aee00276abd3d78ef1e4f59f6fa7af96f08765d6c653cc156a

Aliases

arxiv: 1205.2391 · arxiv_version: 1205.2391v1 · doi: 10.48550/arxiv.1205.2391 · pith_short_12: USIEKXDXWWDK · pith_short_16: USIEKXDXWWDK5YAC · pith_short_8: USIEKXDX

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/USIEKXDXWWDK5YACO2V5HV4O6H \
  | 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: a490455c77b586aee00276abd3d78ef1e4f59f6fa7af96f08765d6c653cc156a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c53aeaee8114c1ed4f020783201e64d345ca10ef73200d42e954c25bf879ac9d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-05-10T21:08:11Z",
    "title_canon_sha256": "4882342fa862b8ece6f9d0458ae5335448158874a71bc5abb4b7169bb806e856"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2391",
    "kind": "arxiv",
    "version": 1
  }
}