Pith Number

pith:4INXR73H

pith:2012:4INXR73HJWJDLSLMFDYC2PASRO

not attested not anchored not stored refs pending

Coherent forward scattering of starlight by a cloud of atomic hydrogen

Frederic Zagury, Pierre Pellat-Finet

arxiv:1211.6975 v1 · 2012-11-29 · astro-ph.GA · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4INXR73HJWJDLSLMFDYC2PASRO}

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	2026-05-18T03:39:42.565978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e21b78ff674d9235c96c28f02d3c128b8d8c18a2eb7e9f54e8c4bc7a9150eaf1

Aliases

arxiv: 1211.6975 · arxiv_version: 1211.6975v1 · doi: 10.48550/arxiv.1211.6975 · pith_short_12: 4INXR73HJWJD · pith_short_16: 4INXR73HJWJDLSLM · pith_short_8: 4INXR73H

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/4INXR73HJWJDLSLMFDYC2PASRO \
  | 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: e21b78ff674d9235c96c28f02d3c128b8d8c18a2eb7e9f54e8c4bc7a9150eaf1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c073afd0789dd1407bb0d922f10ae5509542ab624dd7728258721b6abd904046",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2012-11-29T16:42:58Z",
    "title_canon_sha256": "15d77b54c50a39bf0b28de3033b5bd207e79f84f2d563ebe65b5d7e9378e3918"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.6975",
    "kind": "arxiv",
    "version": 1
  }
}