Pith Number

pith:MARNZJDN

pith:2011:MARNZJDNMP2IXUAQEB3HYWU4FR

not attested not anchored not stored refs pending

HST/STIS Lyman-alpha observations of the quiet M dwarf GJ436: Predictions for the exospheric transit signature of the hot neptune GJ436b

Alain Lecavelier des Etangs, David Ehrenreich, Xavier Delfosse

arxiv:1103.0009 v1 · 2011-02-28 · astro-ph.EP · 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{MARNZJDNMP2IXUAQEB3HYWU4FR}

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	2026-05-18T02:03:02.068602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6022dca46d63f48bd01020767c5a9c2c571ee301dfb242356e78929a9b82df96

Aliases

arxiv: 1103.0009 · arxiv_version: 1103.0009v1 · doi: 10.48550/arxiv.1103.0009 · pith_short_12: MARNZJDNMP2I · pith_short_16: MARNZJDNMP2IXUAQ · pith_short_8: MARNZJDN

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/MARNZJDNMP2IXUAQEB3HYWU4FR \
  | 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: 6022dca46d63f48bd01020767c5a9c2c571ee301dfb242356e78929a9b82df96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f21186295ac91d02954bfbc32edfad3b917c33163fb5b890716c8801e07ebd3b",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2011-02-28T21:00:06Z",
    "title_canon_sha256": "daf9980d29e61f7869f95d0d1fb6087802d60b2ace8a815780f8642a37eb6ec4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0009",
    "kind": "arxiv",
    "version": 1
  }
}