Pith Number

pith:2TXDDZ5U

pith:2015:2TXDDZ5UCLMDOLPBTFWD3BDUQ2

not attested not anchored not stored refs pending

A New Method for Constraining Molecular Cloud Thickness: A study of Taurus, Perseus and Ophiuchus

Di Li, Lei Qian, Stella Offner, Zhichen Pan

arxiv:1508.04220 v1 · 2015-08-18 · astro-ph.GA · astro-ph.IM · 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{2TXDDZ5UCLMDOLPBTFWD3BDUQ2}

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	2026-05-18T01:31:31.491088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4ee31e7b412d8372de1996c3d847486971707a65d45f6414d108b6a4fe19e57

Aliases

arxiv: 1508.04220 · arxiv_version: 1508.04220v1 · doi: 10.48550/arxiv.1508.04220 · pith_short_12: 2TXDDZ5UCLMD · pith_short_16: 2TXDDZ5UCLMDOLPB · pith_short_8: 2TXDDZ5U

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/2TXDDZ5UCLMDOLPBTFWD3BDUQ2 \
  | 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: d4ee31e7b412d8372de1996c3d847486971707a65d45f6414d108b6a4fe19e57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0c2bb7d4bc7d2c8d166d6d859f1a1ba5d39912cdfd3c1c4d71fbb9b0aa436fc",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-08-18T05:47:01Z",
    "title_canon_sha256": "5eb7e79c4f94a96ef816e4f821282d9dd3cd5278e04a575009beb8ec52c4f61d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.04220",
    "kind": "arxiv",
    "version": 1
  }
}