Pith Number

pith:4RDVXQFD

pith:2012:4RDVXQFDVYDWMBQFE3445ZNUAZ

not attested not anchored not stored refs pending

Observations of Outflowing UV Absorbers in NGC 4051 with the Cosmic Origins Spectrograph

A.P. Lobban, D.M. Crenshaw, J.N. Reeves, J.P. Dunn, L. Miller, S.B. Kraemer, T.C. Fischer, T.J. Turner, V. Braito

arxiv:1204.2258 v1 · 2012-04-10 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4RDVXQFDVYDWMBQFE3445ZNUAZ}

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	2026-05-18T01:57:53.904837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4475bc0a3ae0766060526f9cee5b4064f66ad7c6e1af8e2c87d989532335c18

Aliases

arxiv: 1204.2258 · arxiv_version: 1204.2258v1 · doi: 10.48550/arxiv.1204.2258 · pith_short_12: 4RDVXQFDVYDW · pith_short_16: 4RDVXQFDVYDWMBQF · pith_short_8: 4RDVXQFD

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/4RDVXQFDVYDWMBQFE3445ZNUAZ \
  | 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: e4475bc0a3ae0766060526f9cee5b4064f66ad7c6e1af8e2c87d989532335c18

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e18b311a425f6970d4c2384721736134accacb369c3a34fd1afd024307612bb5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-10T19:48:37Z",
    "title_canon_sha256": "7640773519a2b6bd3e569d61ef69e6619ddc1599bff1e444c7e5add318f8b12b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.2258",
    "kind": "arxiv",
    "version": 1
  }
}