Pith Number

pith:YR4DSLEK

pith:1997:YR4DSLEKUURRWUOJQTVLKODHTD

not attested not anchored not stored refs pending

Carbon recombination lines in the Orion Bar

C.M.Walmsley, F.Wyrowski, P.Hofner, P.Schilke

arxiv:astro-ph/9707276 v1 · 1997-07-25 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YR4DSLEKUURRWUOJQTVLKODHTD}

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	2026-07-04T16:03:08.697626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c478392c8aa5231b51c984eab5386798c5eade303f0203039579f8fa9b592997

Aliases

arxiv: astro-ph/9707276 · arxiv_version: astro-ph/9707276v1 · doi: 10.48550/arxiv.astro-ph/9707276 · pith_short_12: YR4DSLEKUURR · pith_short_16: YR4DSLEKUURRWUOJ · pith_short_8: YR4DSLEK

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/YR4DSLEKUURRWUOJQTVLKODHTD \
  | 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: c478392c8aa5231b51c984eab5386798c5eade303f0203039579f8fa9b592997

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c8886c73936f07aff8dc3db529bb289f09d3d9ad2c087f4ac5c3062492cca02",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-07-25T08:43:45Z",
    "title_canon_sha256": "bcd4df42e021e2d9e036ff1441ee7beb45d306fe24bfbf33b728d05788b7d510"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9707276",
    "kind": "arxiv",
    "version": 1
  }
}