Pith Number

pith:HJWIMEVR

pith:1999:HJWIMEVRFRNH6RRVIV6ITWT3O6

not attested not anchored not stored refs pending

The May 1989 outburst of the Soft X-ray Transient GS 2023+338 (V404 Cyg)

(2) University of Leicester, 3), (3) CAMK), C. Done (1), D. Smith (2) ((1) University of Durham, P. Zycki (1

arxiv:astro-ph/9904304 v1 · 1999-04-22 · 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{HJWIMEVRFRNH6RRVIV6ITWT3O6}

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

A bright flare in the obscured state of GRS 1915+105 as seen by NICER and Swift

Receipt and verification

First computed	2026-07-04T16:10:55.124612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a6c8612b12c5a7f4635457c89da7b77a1337c06e0e3916b0b8a161509687953

Aliases

arxiv: astro-ph/9904304 · arxiv_version: astro-ph/9904304v1 · doi: 10.48550/arxiv.astro-ph/9904304 · pith_short_12: HJWIMEVRFRNH · pith_short_16: HJWIMEVRFRNH6RRV · pith_short_8: HJWIMEVR

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/HJWIMEVRFRNH6RRVIV6ITWT3O6 \
  | 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: 3a6c8612b12c5a7f4635457c89da7b77a1337c06e0e3916b0b8a161509687953

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ea8e86a16725dfad065748a72890c2d9ee337cd35dab49958d4ff0c6e41753f4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-04-22T15:11:06Z",
    "title_canon_sha256": "a48f799fbea171e36603d1e42610a465df1cd09ab23afc49a931f1b26dd52d20"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9904304",
    "kind": "arxiv",
    "version": 1
  }
}