Pith Number

pith:WRMDD3BI

pith:2013:WRMDD3BIX4RPVL252ZHZIEXXIB

not attested not anchored not stored refs pending

H-alpha observations of the gamma-ray-emitting Be/X-ray binary LSI+61303: orbital modulation, disk truncation, and long-term variability

G. Belcheva, G. Latev, J. Marti, K. Stoyanov, N. A. Tomov, P. L. Luque-Escamilla, R. Zamanov

arxiv:1309.3947 v1 · 2013-09-16 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

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	2026-05-18T01:47:41.508373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b45831ec28bf22faaf5dd64f9412f7404dd520b159907d5b3c0a1f5d45679473

Aliases

arxiv: 1309.3947 · arxiv_version: 1309.3947v1 · doi: 10.48550/arxiv.1309.3947 · pith_short_12: WRMDD3BIX4RP · pith_short_16: WRMDD3BIX4RPVL25 · pith_short_8: WRMDD3BI

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/WRMDD3BIX4RPVL252ZHZIEXXIB \
  | 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: b45831ec28bf22faaf5dd64f9412f7404dd520b159907d5b3c0a1f5d45679473

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03800c43d415e541cb2deaf24c35e63f7e87c27ca77b08920c386ac8b50d15dd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-09-16T13:24:24Z",
    "title_canon_sha256": "05674131d53e896b4b7d90847c8bb18247f21e9d232d140dad5120ef148aee71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3947",
    "kind": "arxiv",
    "version": 1
  }
}