Pith Number

pith:XPUT3BYM

pith:2008:XPUT3BYMH6CK6YYY55RDRRMNQR

not attested not anchored not stored refs pending

Science with Simbol-X

A. Comastri, A. Decourchelle, A. Goldwurn, C. Feruglio, C. Vignali, E. Piconcelli, F. Fiore, F. Lebrun, G. Malaguti, G. Micela, G. Pareschi, G. Tagliaferri, J.-P. Roques, M. Arnaud, M. Cappi, P. Giommi, P. Grandi, Ph. Ferrando, Ph. Laurent, R. Della Ceca, R. Gilli, S. Puccetti, U. Briel

arxiv:0801.0409 v1 · 2008-01-02 · 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{XPUT3BYMH6CK6YYY55RDRRMNQR}

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	2026-07-04T15:06:35.231131Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbe93d870c3f84af6318ef6238c58d84505c385ac45754e92dc5aeefa70498cf

Aliases

arxiv: 0801.0409 · arxiv_version: 0801.0409v1 · doi: 10.48550/arxiv.0801.0409 · pith_short_12: XPUT3BYMH6CK · pith_short_16: XPUT3BYMH6CK6YYY · pith_short_8: XPUT3BYM

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/XPUT3BYMH6CK6YYY55RDRRMNQR \
  | 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: bbe93d870c3f84af6318ef6238c58d84505c385ac45754e92dc5aeefa70498cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "775e02d7f07a2112115839743213276fc1dfc622774942392ec39052703048c7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-02T15:49:36Z",
    "title_canon_sha256": "ef1e218dbeea01c970cb1790fa6c041511190754c0ed567710971acf98f9a225"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.0409",
    "kind": "arxiv",
    "version": 1
  }
}