Pith Number

pith:BK44OOXA

pith:1993:BK44OOXAZGLJWB2OPIRDEUU4QJ

not attested not anchored not stored refs pending

The Peculiar Balmer Line Profiles of OQ 208

E. Perez, J.W. Sulentic, M. Calvani, M. Moles, & M. V. Penston, P. Marziani

arxiv:astro-ph/9301001 v1 · 1993-01-07 · 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{BK44OOXAZGLJWB2OPIRDEUU4QJ}

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	2026-07-04T15:55:05.602983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ab9c73ae0c9969b074e7a2232529c827df6ad083a00a25e44dc4d5747be5a4f

Aliases

arxiv: astro-ph/9301001 · arxiv_version: astro-ph/9301001v1 · doi: 10.48550/arxiv.astro-ph/9301001 · pith_short_12: BK44OOXAZGLJ · pith_short_16: BK44OOXAZGLJWB2O · pith_short_8: BK44OOXA

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/BK44OOXAZGLJWB2OPIRDEUU4QJ \
  | 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: 0ab9c73ae0c9969b074e7a2232529c827df6ad083a00a25e44dc4d5747be5a4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b393a9f0cd704748e8a3c86fde16ced5020b1f7578b227e2d002ce3ca007c1df",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1993-01-07T17:29:20Z",
    "title_canon_sha256": "8fd52ca86d254c1daa9bcc8053ad9c4b37609d12c0a668ae56106e472188a3f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9301001",
    "kind": "arxiv",
    "version": 1
  }
}