Pith Number

pith:4UMZCPA6

pith:2019:4UMZCPA6QIHP7LUWFEL2EOACXG

not attested not anchored not stored refs pending

Optimizing Ground-based Observations of O2 in Earth Analogs

Andrew Szentgyorgyi, Gonzalo Gonzalez-Abad, Jeremy Dietrich, Juliana Garcia-Mejia, Mercedes Lopez-Morales, Sagi Ben-Ami

arxiv:1905.05862 v1 · 2019-05-14 · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4UMZCPA6QIHP7LUWFEL2EOACXG}

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	2026-05-17T23:42:18.998834Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e519913c1e820effae962917a23802b982c0c2f13615b7d92ef2cf9b0a97f6f4

Aliases

arxiv: 1905.05862 · arxiv_version: 1905.05862v1 · doi: 10.48550/arxiv.1905.05862 · pith_short_12: 4UMZCPA6QIHP · pith_short_16: 4UMZCPA6QIHP7LUW · pith_short_8: 4UMZCPA6

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/4UMZCPA6QIHP7LUWFEL2EOACXG \
  | 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: e519913c1e820effae962917a23802b982c0c2f13615b7d92ef2cf9b0a97f6f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b418e69fca19afb1b92d0a9e17bebe2c8f6f88c76ad9c2841b866a6d3009b203",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-05-14T22:21:01Z",
    "title_canon_sha256": "0dc97cc434e69c830a69e48364d624d8bb610e4a874798aa749a24476ec49026"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.05862",
    "kind": "arxiv",
    "version": 1
  }
}