Pith Number

pith:CWTYO6TM

pith:2015:CWTYO6TMEXEXO4LYTLANC5CRZ5

not attested not anchored not stored refs pending

Cold and Warm Atomic Gas around the Perseus Molecular Cloud. II. The Impact of High Optical Depth on the HI Column Density Distribution and Its Implication for the HI-to-H2 Transition

Carl Heiles, Claire E. Murray, Jesse Miller, Min-Young Lee, Snezana Stanimirovic

arxiv:1504.07405 v2 · 2015-04-28 · 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{CWTYO6TMEXEXO4LYTLANC5CRZ5}

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	2026-05-18T01:35:10.250500Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15a7877a6c25c97771789ac0d17451cf7b1a3cd70f430eafeb8af5dc1121e43b

Aliases

arxiv: 1504.07405 · arxiv_version: 1504.07405v2 · doi: 10.48550/arxiv.1504.07405 · pith_short_12: CWTYO6TMEXEX · pith_short_16: CWTYO6TMEXEXO4LY · pith_short_8: CWTYO6TM

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/CWTYO6TMEXEXO4LYTLANC5CRZ5 \
  | 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: 15a7877a6c25c97771789ac0d17451cf7b1a3cd70f430eafeb8af5dc1121e43b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1b1454b0a91d8a70ba93f0b9ea22c2223660caa96772535974dedffda8ab960e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-28T10:06:46Z",
    "title_canon_sha256": "01b67dd9eb5feb006d9c3467057d1970159cf79a4c7e5e88ed2106d4eac99334"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07405",
    "kind": "arxiv",
    "version": 2
  }
}