Pith Number

pith:P53EXDU5

pith:1997:P53EXDU5OYHJTEMHOAN5MYEXZY

not attested not anchored not stored refs pending

Faint Ultraviolet Objects in the Core of M13: Optical Counterparts of the Low Luminosity X-ray Source?

(1) Flavio Fusi Pecci (1, 2), 4) ((1) U. Bologna; (2) Cagliari; (3) U. Virginia; 4. NASA/GSFC), Barbara Paltrinieri, Ben Dorman (3, Francesco R. Ferraro, Robert T. Rood (3)

arxiv:astro-ph/9707046 v1 · 1997-07-03 · 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{P53EXDU5OYHJTEMHOAN5MYEXZY}

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	2026-05-18T01:22:58.726580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f764b8e9d760e999187701bd66097ce0b5e1646e0fcb28d9bf9db47f7f8e844

Aliases

arxiv: astro-ph/9707046 · arxiv_version: astro-ph/9707046v1 · doi: 10.48550/arxiv.astro-ph/9707046 · pith_short_12: P53EXDU5OYHJ · pith_short_16: P53EXDU5OYHJTEMH · pith_short_8: P53EXDU5

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/P53EXDU5OYHJTEMHOAN5MYEXZY \
  | 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: 7f764b8e9d760e999187701bd66097ce0b5e1646e0fcb28d9bf9db47f7f8e844

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5032ac9c6655d41af3a1bcecb7bd28e13474b74931327456d482b7f17ce31cb3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-07-03T16:22:41Z",
    "title_canon_sha256": "f5907d85c503819fd777ac3a3cbac75832b13dda9a2734112200680f15c133b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9707046",
    "kind": "arxiv",
    "version": 1
  }
}