Pith Number

pith:BLEV2MFN

pith:2020:BLEV2MFNDWYMLHOFGTTA2RHFOO

not attested not anchored not stored refs pending

Spitzer's perspective of polycyclic aromatic hydrocarbons in galaxies

Aigen Li

arxiv:2003.10489 v1 · 2020-03-23 · astro-ph.GA · physics.atm-clus · physics.chem-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BLEV2MFNDWYMLHOFGTTA2RHFOO}

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	2026-07-05T00:49:53.467363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ac95d30ad1db0c59dc534e60d44e5738c440ae477ad8b8fe330b63445b2014f

Aliases

arxiv: 2003.10489 · arxiv_version: 2003.10489v1 · doi: 10.48550/arxiv.2003.10489 · pith_short_12: BLEV2MFNDWYM · pith_short_16: BLEV2MFNDWYMLHOF · pith_short_8: BLEV2MFN

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/BLEV2MFNDWYMLHOFGTTA2RHFOO \
  | 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: 0ac95d30ad1db0c59dc534e60d44e5738c440ae477ad8b8fe330b63445b2014f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35855d89cdc671acd488ed2eda9b149d3d8dc531d044f7410c96a77bfec235f9",
    "cross_cats_sorted": [
      "physics.atm-clus",
      "physics.chem-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-03-23T18:37:51Z",
    "title_canon_sha256": "2f3a4e14a955c128b8948c067579cb8e973f5a8cd621a21d4d99a55e0d03a759"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.10489",
    "kind": "arxiv",
    "version": 1
  }
}