Pith Number

pith:HIJAMBKC

pith:2018:HIJAMBKCTBWXXTS4DEOSEZGXFV

not attested not anchored not stored refs pending

Detection of the Missing Baryons toward the Sightline of H1821+643

Akos Bogdan, Orsolya E. Kovacs, Ralph P. Kraft, Randall K. Smith, William R. Forman

arxiv:1812.04625 v1 · 2018-12-11 · astro-ph.CO · 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{HIJAMBKCTBWXXTS4DEOSEZGXFV}

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	2026-05-17T23:53:23.666938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a12060542986d7bce5c191d2264d72d4518fdd010c38bff0b7044882c5cbad3

Aliases

arxiv: 1812.04625 · arxiv_version: 1812.04625v1 · doi: 10.48550/arxiv.1812.04625 · pith_short_12: HIJAMBKCTBWX · pith_short_16: HIJAMBKCTBWXXTS4 · pith_short_8: HIJAMBKC

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/HIJAMBKCTBWXXTS4DEOSEZGXFV \
  | 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: 3a12060542986d7bce5c191d2264d72d4518fdd010c38bff0b7044882c5cbad3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd47e76666c9c345f7a41a9f7ed05472da37f6b43ce7279636b18ae27cab8164",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-12-11T19:00:00Z",
    "title_canon_sha256": "36017f16d7274316082768089e4dc6e7e1840ce7f1da9ba5e2b23eaaf75b5d82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.04625",
    "kind": "arxiv",
    "version": 1
  }
}