Pith Number

pith:4ANC7RRB

pith:2012:4ANC7RRBA24A44WHFGP3X4E43O

not attested not anchored not stored refs pending

Present-day Galactic Evolution: Low-metallicity, Warm, Ionized Gas Inflow Associated with High-Velocity Cloud Complex A

Alex S. Hill, Allison K. Duncan, Bart P. Wakker, Greg J. Madsen, Kathleen A. Barger, Lawrence M. Haffner

arxiv:1211.1973 v2 · 2012-11-08 · 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{4ANC7RRBA24A44WHFGP3X4E43O}

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	2026-05-18T03:16:49.611671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e01a2fc62106b80e72c7299fbbf09cdb844bc5016786c2cb04b27b9a93216fc8

Aliases

arxiv: 1211.1973 · arxiv_version: 1211.1973v2 · doi: 10.48550/arxiv.1211.1973 · pith_short_12: 4ANC7RRBA24A · pith_short_16: 4ANC7RRBA24A44WH · pith_short_8: 4ANC7RRB

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/4ANC7RRBA24A44WHFGP3X4E43O \
  | 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: e01a2fc62106b80e72c7299fbbf09cdb844bc5016786c2cb04b27b9a93216fc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "359e10ba32c31657248be5e39f208e8f70ce5f8662b2f247c734b91007e0e97f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-11-08T21:00:03Z",
    "title_canon_sha256": "04162e1c26b5dfc977fc940ef53bc5cbeb92bf2a584665f6a8e3c55cacf6d637"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1973",
    "kind": "arxiv",
    "version": 2
  }
}