Pith Number

pith:EGZMMPLO

pith:2014:EGZMMPLO2I7CH7CTUKDDWGWL3F

not attested not anchored not stored refs pending

Constraint on the cosmic age from the solar $r$-process abundances

B. H. Sun, J. Y. Guo, T. H. Heng, X. D. Xu, Z. M. Niu

arxiv:1403.1644 v1 · 2014-03-07 · 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{EGZMMPLO2I7CH7CTUKDDWGWL3F}

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	2026-05-18T01:44:18.643390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21b2c63d6ed23e23fc53a2863b1acbd95d8cd2091aeb42a220d0ca5fac3f98bd

Aliases

arxiv: 1403.1644 · arxiv_version: 1403.1644v1 · doi: 10.48550/arxiv.1403.1644 · pith_short_12: EGZMMPLO2I7C · pith_short_16: EGZMMPLO2I7CH7CT · pith_short_8: EGZMMPLO

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/EGZMMPLO2I7CH7CTUKDDWGWL3F \
  | 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: 21b2c63d6ed23e23fc53a2863b1acbd95d8cd2091aeb42a220d0ca5fac3f98bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bd9dfb4fac0f57aecc7f9780c2cf4f7e4fc8e0e13de6ce77b3074cf4dbb63d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-03-07T03:29:43Z",
    "title_canon_sha256": "ce34f706a2957aee5ba9dbbfecb1ce9055fdea5fe4664d9f1e0a349cfbd0c123"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.1644",
    "kind": "arxiv",
    "version": 1
  }
}