Pith Number

pith:IZWZOFEW

pith:2009:IZWZOFEWRPEF4SIPK6DVDEFGVX

not attested not anchored not stored refs pending

Supersoft sources in M 31: Comparing the XMM-Newton Deep Survey, ROSAT and Chandra catalogues

D. Hatzidimitriou, F. Haberl, H. Stiele, J. Greiner, V. Burwitz, W. Pietsch

arxiv:0912.0624 v1 · 2009-12-03 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IZWZOFEWRPEF4SIPK6DVDEFGVX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:10:34.329856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

466d9714968bc85e490f57875190a6adcdb9f742c13fa36a56582f230ee43e0f

Aliases

arxiv: 0912.0624 · arxiv_version: 0912.0624v1 · doi: 10.48550/arxiv.0912.0624 · pith_short_12: IZWZOFEWRPEF · pith_short_16: IZWZOFEWRPEF4SIP · pith_short_8: IZWZOFEW

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/IZWZOFEWRPEF4SIPK6DVDEFGVX \
  | 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: 466d9714968bc85e490f57875190a6adcdb9f742c13fa36a56582f230ee43e0f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fefb63dad6c30f8cb129ee40a7f462f84e724c37014a2467b3a3f8a28239bf7a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-12-03T14:13:56Z",
    "title_canon_sha256": "12bbec85c1cb59bb6111e587b8e0edd54d052f770c6e4228e093564467ac281d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0624",
    "kind": "arxiv",
    "version": 1
  }
}