Pith Number

pith:ZM4TCR76

pith:2013:ZM4TCR76HVUHUNOUNWTEM3W5YJ

not attested not anchored not stored refs pending

Terrestrial effects of possible astrophysical sources of an AD 774-775 increase in 14C production

Adrian L. Melott (Univ. Kansas), Brian C. Thomas (Washburn University), Brock R. Snyder II (Washburn University), Keith R. Arkenberg

arxiv:1302.1501 v2 · 2013-02-06 · astro-ph.SR · physics.ao-ph · physics.geo-ph · physics.space-ph · q-bio.PE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZM4TCR76HVUHUNOUNWTEM3W5YJ}

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	2026-05-18T02:20:29.133983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb393147fe3d687a35d46da6466eddc24af541c85cea45c041e753230c4c403f

Aliases

arxiv: 1302.1501 · arxiv_version: 1302.1501v2 · doi: 10.48550/arxiv.1302.1501 · pith_short_12: ZM4TCR76HVUH · pith_short_16: ZM4TCR76HVUHUNOU · pith_short_8: ZM4TCR76

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/ZM4TCR76HVUHUNOUNWTEM3W5YJ \
  | 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: cb393147fe3d687a35d46da6466eddc24af541c85cea45c041e753230c4c403f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49c79684d2298607dd2106fa82f3371e4303abf45e720f202e7df8774ab846c7",
    "cross_cats_sorted": [
      "physics.ao-ph",
      "physics.geo-ph",
      "physics.space-ph",
      "q-bio.PE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-02-06T20:29:04Z",
    "title_canon_sha256": "7b3d03869b1b052110f7be0661dce65f5b3a26c9248aa0acd539fd0b2c21e643"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1501",
    "kind": "arxiv",
    "version": 2
  }
}