Pith Number

pith:I7TYKIGL

pith:2016:I7TYKIGLILNYUBDGOYHH2LNVOE

not attested not anchored not stored refs pending

Interstellar chemical differentiation across grain sizes

Aigen Li, J.H. He, J.X. Ge

arxiv:1603.08272 v3 · 2016-03-28 · 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{I7TYKIGLILNYUBDGOYHH2LNVOE}

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	2026-05-18T01:12:01.440177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47e78520cb42db8a0466760e7d2db5713d452559b4baac9ae133e62fe4c141d4

Aliases

arxiv: 1603.08272 · arxiv_version: 1603.08272v3 · doi: 10.48550/arxiv.1603.08272 · pith_short_12: I7TYKIGLILNY · pith_short_16: I7TYKIGLILNYUBDG · pith_short_8: I7TYKIGL

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/I7TYKIGLILNYUBDGOYHH2LNVOE \
  | 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: 47e78520cb42db8a0466760e7d2db5713d452559b4baac9ae133e62fe4c141d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "addd07193ebe1440fac91cb5f2744c5df721671714eead77bed7fc3e78b924c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-03-28T00:43:50Z",
    "title_canon_sha256": "e1ef54a1275730e594b2865afa93fd9f2ab236be8e20ecc19dd4a8304a229fc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.08272",
    "kind": "arxiv",
    "version": 3
  }
}