Pith Number

pith:7E4NFPS2

pith:2003:7E4NFPS2H5BHTF3KU3PPX4ORDN

not attested not anchored not stored refs pending

First IBIS results on the high energy emission of Cyg X-2

A. Santangelo, F.Capitanio, L. Natalucci, M.Cocchi, M. Del Santo, P.Ubertini, S. Piraino

arxiv:astro-ph/0309400 v1 · 2003-09-15 · 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{7E4NFPS2H5BHTF3KU3PPX4ORDN}

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	2026-07-04T16:51:39.437599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f938d2be5a3f4279976aa6defbf1d11b7762f4493e80c0ad98f207bf9028bfec

Aliases

arxiv: astro-ph/0309400 · arxiv_version: astro-ph/0309400v1 · doi: 10.48550/arxiv.astro-ph/0309400 · pith_short_12: 7E4NFPS2H5BH · pith_short_16: 7E4NFPS2H5BHTF3K · pith_short_8: 7E4NFPS2

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/7E4NFPS2H5BHTF3KU3PPX4ORDN \
  | 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: f938d2be5a3f4279976aa6defbf1d11b7762f4493e80c0ad98f207bf9028bfec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a94a7d90ff3a1e8caff25e5e75063c405417eb860955ad883ce5c9925f991224",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-15T15:49:23Z",
    "title_canon_sha256": "bcbee7eb369d6d126cca7632a2d24a105134503defc6c52b88c09b6fe9f0a514"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309400",
    "kind": "arxiv",
    "version": 1
  }
}