Pith Number

pith:5O3ITDKR

pith:2011:5O3ITDKR2JUNCKAXLQ3IS7O56B

not attested not anchored not stored refs pending

Very Large Array Observations of Ammonia in Infrared-Dark Clouds I: Column Density and Temperature Structure

David Wilner, Edwin Bergin, Sarah Ragan

arxiv:1105.4182 v2 · 2011-05-20 · 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{5O3ITDKR2JUNCKAXLQ3IS7O56B}

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	2026-05-18T02:01:53.415553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebb6898d51d268d128175c36897dddf048ee9c929465544175c83e30514c7b5b

Aliases

arxiv: 1105.4182 · arxiv_version: 1105.4182v2 · doi: 10.48550/arxiv.1105.4182 · pith_short_12: 5O3ITDKR2JUN · pith_short_16: 5O3ITDKR2JUNCKAX · pith_short_8: 5O3ITDKR

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/5O3ITDKR2JUNCKAXLQ3IS7O56B \
  | 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: ebb6898d51d268d128175c36897dddf048ee9c929465544175c83e30514c7b5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d12aa9197e96f78be0f8b747750d14b6dca176f8b43e2d7a4a5367bdd6c92571",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-05-20T22:07:47Z",
    "title_canon_sha256": "973d29440371157d753093695199ad625ee261791a95a846a685e1c9d90795ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.4182",
    "kind": "arxiv",
    "version": 2
  }
}