Pith Number

pith:HG2WQSTI

pith:2014:HG2WQSTI7KFRT2Z3EQMUTZLY2K

not attested not anchored not stored refs pending

Exclusion of Cosmic Rays in Protoplanetary Disks. II. Chemical Gradients and Observational Signatures

2) ((1) Department of Astronomy, (2) Department of Physics, Edwin A. Bergin (1), Fred C. Adams (1, L. I. Cleeves (1), University of Michigan, University of Michigan)

arxiv:1408.2835 v2 · 2014-08-12 · 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{HG2WQSTI7KFRT2Z3EQMUTZLY2K}

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	2026-05-18T01:42:21.184664Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39b5684a68fa8b19eb3b241949e578d2a5424a4e40f21cb2b3815c373d257ca7

Aliases

arxiv: 1408.2835 · arxiv_version: 1408.2835v2 · doi: 10.48550/arxiv.1408.2835 · pith_short_12: HG2WQSTI7KFR · pith_short_16: HG2WQSTI7KFRT2Z3 · pith_short_8: HG2WQSTI

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/HG2WQSTI7KFRT2Z3EQMUTZLY2K \
  | 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: 39b5684a68fa8b19eb3b241949e578d2a5424a4e40f21cb2b3815c373d257ca7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff9e54a1626fb07f8500522fb0f0d2190eaa424782e889fafbcf7bcb1c080715",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-08-12T20:06:45Z",
    "title_canon_sha256": "23225eb9ad88405c356b19ab72aa61eca98652fadcef8ef26089d3b85e240fff"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2835",
    "kind": "arxiv",
    "version": 2
  }
}