Pith Number

pith:FM4PBLYG

pith:2017:FM4PBLYGJZS6YSLUWEDG6SBGXK

not attested not anchored not stored refs pending

Evaporation of planetary atmospheres due to XUV illumination by quasars

Abraham Loeb, John C. Forbes

arxiv:1705.06741 v1 · 2017-05-18 · astro-ph.EP · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FM4PBLYGJZS6YSLUWEDG6SBGXK}

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	2026-05-18T00:13:32.680698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b38f0af064e65ec4974b1066f4826baa0808c2cf39cee435cc98abd188a7eca

Aliases

arxiv: 1705.06741 · arxiv_version: 1705.06741v1 · doi: 10.48550/arxiv.1705.06741 · pith_short_12: FM4PBLYGJZS6 · pith_short_16: FM4PBLYGJZS6YSLU · pith_short_8: FM4PBLYG

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/FM4PBLYGJZS6YSLUWEDG6SBGXK \
  | 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: 2b38f0af064e65ec4974b1066f4826baa0808c2cf39cee435cc98abd188a7eca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b51f2abaa4c93cf5bb1464dbac135af0b57a3bf22921a0786e10911cc187edd5",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2017-05-18T18:00:00Z",
    "title_canon_sha256": "4402056b8af05f0d2f5f02e0328b461ab42ccb1c59aa2c824fefd288cca1ba5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06741",
    "kind": "arxiv",
    "version": 1
  }
}