Pith Number

pith:WHHD2C3Y

pith:2008:WHHD2C3YCYMCJKZY7UHXKMWCVD

not attested not anchored not stored refs pending

RXTE Monitoring of the Anomalous X-ray Pulsar 1E 1048.1-5937: Long-Term Variability and the 2007 March Event

Fotis P. Gavriil, Rim Dib, Victoria M. Kaspi

arxiv:0811.2659 v2 · 2008-11-17 · 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{WHHD2C3YCYMCJKZY7UHXKMWCVD}

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	2026-05-18T02:15:20.815478Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b1ce3d0b78161824ab38fd0f7532c2a8fc66a58f82a522345a0c6128fee6699f

Aliases

arxiv: 0811.2659 · arxiv_version: 0811.2659v2 · doi: 10.48550/arxiv.0811.2659 · pith_short_12: WHHD2C3YCYMC · pith_short_16: WHHD2C3YCYMCJKZY · pith_short_8: WHHD2C3Y

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/WHHD2C3YCYMCJKZY7UHXKMWCVD \
  | 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: b1ce3d0b78161824ab38fd0f7532c2a8fc66a58f82a522345a0c6128fee6699f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5edcea93b34db8a31d31b62876731ae627a6ed96a1e3b4e2b205173f723a8e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-17T10:11:04Z",
    "title_canon_sha256": "f8bad1f32325383496e79e37923ddcaaa3d7f849274aa6088523b77fc82a0df1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.2659",
    "kind": "arxiv",
    "version": 2
  }
}