Pith Number

pith:2ZFLTE77

pith:2001:2ZFLTE77DMFSGZA6MAJT745DBH

not attested not anchored not stored refs pending

Early Chandra X-ray Observations of Eta Carinae

A. Prestwich. E. M. Schlegel, F. D. Seward, M. Corcoran, M. Karovska, Y. M. Butt

arxiv:astro-ph/0101206 v1 · 2001-01-12 · 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{2ZFLTE77DMFSGZA6MAJT745DBH}

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	2026-07-04T16:22:34.096376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d64ab993ff1b0b23641e60133ff3a309ea670ca3e3b92b72913b5c4bab20f0b3

Aliases

arxiv: astro-ph/0101206 · arxiv_version: astro-ph/0101206v1 · doi: 10.48550/arxiv.astro-ph/0101206 · pith_short_12: 2ZFLTE77DMFS · pith_short_16: 2ZFLTE77DMFSGZA6 · pith_short_8: 2ZFLTE77

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/2ZFLTE77DMFSGZA6MAJT745DBH \
  | 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: d64ab993ff1b0b23641e60133ff3a309ea670ca3e3b92b72913b5c4bab20f0b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e98a54852af677e382a8f2140ff743b7d796300132ba106f367496d9996300e8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-01-12T15:27:10Z",
    "title_canon_sha256": "afa5201fa39b3d96ae68710f35eb55f639398bda2aa7410f622d580d7994710a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0101206",
    "kind": "arxiv",
    "version": 1
  }
}