Pith Number

pith:INUC6RVA

pith:2011:INUC6RVAXQH426EB4FVSF2KP4F

not attested not anchored not stored refs pending

Secular Changes in Eta Carinae's Wind 1998-2011

Andrea Mehner, Frederick M. Walter, John C. Martin, Kazunori Ishibashi, Kris Davidson, Maria Teresa Ruiz, Roberta M. Humphreys

arxiv:1112.4338 v2 · 2011-12-19 · 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{INUC6RVAXQH426EB4FVSF2KP4F}

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	2026-05-18T01:59:05.665427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43682f46a0bc0fcd7881e16b22e94fe14f0e80bbae9f0ba9daea9ff32fbf51bf

Aliases

arxiv: 1112.4338 · arxiv_version: 1112.4338v2 · doi: 10.48550/arxiv.1112.4338 · pith_short_12: INUC6RVAXQH4 · pith_short_16: INUC6RVAXQH426EB · pith_short_8: INUC6RVA

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/INUC6RVAXQH426EB4FVSF2KP4F \
  | 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: 43682f46a0bc0fcd7881e16b22e94fe14f0e80bbae9f0ba9daea9ff32fbf51bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a378c114d41c1bc7fa1c9eeb5300dd8cf6d33ec8660a3047222b1d0146b78319",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-12-19T13:53:18Z",
    "title_canon_sha256": "1d2d6df8f6647ec88cd4adff12bd2b827949e74cc4030d29dd2e6dac50deacb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.4338",
    "kind": "arxiv",
    "version": 2
  }
}