Pith Number

pith:2TNDGN3X

pith:2004:2TNDGN3XT27QBLRSCNBDRCKO5X

not attested not anchored not stored refs pending

Origin of the Soft Excess in X-ray Pulsars

(2) NASA Goddard Space Flight Center), Ramesh Narayan (1), Ryan C. Hickox (1), Timothy R. Kallman (2) ((1) Harvard-Smithsonian Center for Astrophysics

arxiv:astro-ph/0407115 v2 · 2004-07-06 · 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{2TNDGN3XT27QBLRSCNBDRCKO5X}

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.

Cited by

1 paper in Pith

Iron line diagnostics of the stellar wind in X1908+075

Receipt and verification

First computed	2026-07-04T16:44:15.558748Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4da3337779ebf00ae32134238894eedd7a9090b71ad82875be6eb0a578356cc

Aliases

arxiv: astro-ph/0407115 · arxiv_version: astro-ph/0407115v2 · doi: 10.48550/arxiv.astro-ph/0407115 · pith_short_12: 2TNDGN3XT27Q · pith_short_16: 2TNDGN3XT27QBLRS · pith_short_8: 2TNDGN3X

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/2TNDGN3XT27QBLRSCNBDRCKO5X \
  | 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: d4da3337779ebf00ae32134238894eedd7a9090b71ad82875be6eb0a578356cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd41dbca7ca25861c1e4d4f7a9271e22e06205bb850d8ab895cd389c23016089",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-07-06T20:59:45Z",
    "title_canon_sha256": "b6e8f065c7f7b920043edd7104d66a12c71547a095b036fa767b8bdbeebd1a61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0407115",
    "kind": "arxiv",
    "version": 2
  }
}