Pith Number

pith:D2Q6I7XG

pith:2020:D2Q6I7XGJ5FRJBUCE77WX6NIOZ

not attested not anchored not stored refs pending

Reconstructing EUV spectrum of star forming regions from millimeter recombination lines of HI, HeI, and HeII

Angela Bongiorno, Dariusz C. Lis, Eric J. Murphy, Frank Tramper, Hugues Sana, Kartik Sheth, Lee Armus, Lena Murchikova, Lisa Kewley, Martin Elvis, Nadia Zakamska, Selma de Mink

arxiv:2006.15153 v2 · 2020-06-26 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D2Q6I7XGJ5FRJBUCE77WX6NIOZ}

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	2026-07-05T01:48:10.836285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1ea1e47ee64f4b14868227ff6bf9a87658803d6d276626bd6902e683b45bb196

Aliases

arxiv: 2006.15153 · arxiv_version: 2006.15153v2 · doi: 10.48550/arxiv.2006.15153 · pith_short_12: D2Q6I7XGJ5FR · pith_short_16: D2Q6I7XGJ5FRJBUC · pith_short_8: D2Q6I7XG

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/D2Q6I7XGJ5FRJBUCE77WX6NIOZ \
  | 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: 1ea1e47ee64f4b14868227ff6bf9a87658803d6d276626bd6902e683b45bb196

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1684e52217f486491363da06a01e332669db7c6de97638141016a9a884901c7",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-06-26T18:00:06Z",
    "title_canon_sha256": "6eda1a6e75abd04ebda27f8705d7e64da770b9f4a9fe5db70dc4ae66b817a1c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.15153",
    "kind": "arxiv",
    "version": 2
  }
}