Pith Number

pith:OJSZ52TI

pith:1996:OJSZ52TIQDACFOYH6GGTIFVH2C

not attested not anchored not stored refs pending

Evidence for a New Class of Extreme UV Sources

Amotz Shemi (Tel-Aviv University), Dan Maoz, Eran Ofek

arxiv:astro-ph/9612149 v1 · 1996-12-16 · 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{OJSZ52TIQDACFOYH6GGTIFVH2C}

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	2026-05-18T01:40:18.636911Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

72659eea6880c022bb07f18d3416a7d08699aa342c169bb902b9b717e57388f9

Aliases

arxiv: astro-ph/9612149 · arxiv_version: astro-ph/9612149v1 · doi: 10.48550/arxiv.astro-ph/9612149 · pith_short_12: OJSZ52TIQDAC · pith_short_16: OJSZ52TIQDACFOYH · pith_short_8: OJSZ52TI

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/OJSZ52TIQDACFOYH6GGTIFVH2C \
  | 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: 72659eea6880c022bb07f18d3416a7d08699aa342c169bb902b9b717e57388f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "deb12c3c2a7ffe94b9eb935513c18c9e69a8b1edbc74346c5b799a7f33ecc88d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-12-16T10:17:09Z",
    "title_canon_sha256": "46ce00c0720436879a52c8491700e29a598b1935928c6aa51bbc11592d7b8fac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9612149",
    "kind": "arxiv",
    "version": 1
  }
}