Pith Number

pith:QGNH3NCR

pith:2014:QGNH3NCRRTDXSOVPJBOYXU7BDY

not attested not anchored not stored refs pending

The Magellan Uniform Survey of Damped Lyman alpha Systems II: Paucity of Strong Molecular Hydrogen Absorption

Michael T. Murphy, Regina A. Jorgenson, Robert F. Carswell, Rodger Thompson

arxiv:1407.1111 v1 · 2014-07-04 · 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{QGNH3NCRRTDXSOVPJBOYXU7BDY}

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	2026-05-18T01:42:42.061189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

819a7db4518cc7793aaf485d8bd3e11e1d54e3af9404247e1f13a4c4d9a5ee98

Aliases

arxiv: 1407.1111 · arxiv_version: 1407.1111v1 · doi: 10.48550/arxiv.1407.1111 · pith_short_12: QGNH3NCRRTDX · pith_short_16: QGNH3NCRRTDXSOVP · pith_short_8: QGNH3NCR

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/QGNH3NCRRTDXSOVPJBOYXU7BDY \
  | 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: 819a7db4518cc7793aaf485d8bd3e11e1d54e3af9404247e1f13a4c4d9a5ee98

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0bc417361c12ce267239f929b011de3bea6f4e1c19ef0c0a0df934381752f43b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-07-04T02:03:23Z",
    "title_canon_sha256": "324e10a3ca891603954100476ebd5f39ef15dc0a77770e8cd63a8bc30ebf12d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1111",
    "kind": "arxiv",
    "version": 1
  }
}