Pith Number

pith:EXEPAD7M

pith:2001:EXEPAD7MW4D4ZGHCWDGSKOL4KP

not attested not anchored not stored refs pending

Observations of O (1S) and O (1D) in Spectra of C/1999 S4 (LINEAR)

Anita L. Cochran, William D. Cochran

arxiv:astro-ph/0108065 v1 · 2001-08-03 · 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{EXEPAD7MW4D4ZGHCWDGSKOL4KP}

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	2026-07-04T16:23:49.300600Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25c8f00fecb707cc98e2b0cd25397c53c5419a4e72118300d1dde54fa0ecbaa5

Aliases

arxiv: astro-ph/0108065 · arxiv_version: astro-ph/0108065v1 · doi: 10.48550/arxiv.astro-ph/0108065 · pith_short_12: EXEPAD7MW4D4 · pith_short_16: EXEPAD7MW4D4ZGHC · pith_short_8: EXEPAD7M

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/EXEPAD7MW4D4ZGHCWDGSKOL4KP \
  | 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: 25c8f00fecb707cc98e2b0cd25397c53c5419a4e72118300d1dde54fa0ecbaa5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e29c548070901881e0d8f5284e5e39bbe491d9f7de3e1f53c5d09aae7e5dec1c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-08-03T22:00:20Z",
    "title_canon_sha256": "e39097d345bc88af9a5d36451ac7c6a568db1fea00de7c7f8e1e68f50d642ae9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0108065",
    "kind": "arxiv",
    "version": 1
  }
}