Pith Number

pith:SN2GXKSK

pith:2009:SN2GXKSK2BPGH5YS37SL45EH2L

not attested not anchored not stored refs pending

The nature of the recent extreme outburst of the Herbig Be/FU Ori binary Z CMa

B. Stelzer, M. Sch\"oller, O. Sch\"utz, S. Hubrig, T. Szeifert, Z. Mikul\'asek

arxiv:0912.3889 v1 · 2009-12-19 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SN2GXKSK2BPGH5YS37SL45EH2L}

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	2026-05-18T02:10:15.355349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93746baa4ad05e63f712dfe4be7487d2d96e0329960eb12857720fe1803a30a1

Aliases

arxiv: 0912.3889 · arxiv_version: 0912.3889v1 · doi: 10.48550/arxiv.0912.3889 · pith_short_12: SN2GXKSK2BPG · pith_short_16: SN2GXKSK2BPGH5YS · pith_short_8: SN2GXKSK

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/SN2GXKSK2BPGH5YS37SL45EH2L \
  | 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: 93746baa4ad05e63f712dfe4be7487d2d96e0329960eb12857720fe1803a30a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c1161f9af7bde1b4a8d70869922d54df5e95c744526ce347ff7bc30d0e7e894d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-19T11:48:44Z",
    "title_canon_sha256": "85c29303ca100568ec7ea659d65670492988025f02a7dc2636350846008c6f00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.3889",
    "kind": "arxiv",
    "version": 1
  }
}