Pith Number

pith:W3W2NNSL

pith:1998:W3W2NNSLJ3IBMGBLLU22LTEWE2

not attested not anchored not stored refs pending

The broad-band X-ray spectrum of Mrk 3

C. Done, D. A. Smith, I. Georgantopoulos, R. G. Griffiths, R. S. Warwick

arxiv:astro-ph/9804247 v1 · 1998-04-23 · 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{W3W2NNSLJ3IBMGBLLU22LTEWE2}

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	2026-07-04T16:06:19.904131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6eda6b64b4ed016182b5d35a5cc9626b253eecb6677a8900ec686f406446fe4

Aliases

arxiv: astro-ph/9804247 · arxiv_version: astro-ph/9804247v1 · doi: 10.48550/arxiv.astro-ph/9804247 · pith_short_12: W3W2NNSLJ3IB · pith_short_16: W3W2NNSLJ3IBMGBL · pith_short_8: W3W2NNSL

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/W3W2NNSLJ3IBMGBLLU22LTEWE2 \
  | 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: b6eda6b64b4ed016182b5d35a5cc9626b253eecb6677a8900ec686f406446fe4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bcfb3a3defc009512b8c99eb6ea2d9a124e6911421e976f9356ba80b66b107a1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-04-23T17:11:07Z",
    "title_canon_sha256": "9e68ca5c4584edc9322316256f3e09058169a5c55f04f3cead4bab2f6ad7c110"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9804247",
    "kind": "arxiv",
    "version": 1
  }
}