Pith Number

pith:3SUEQRMK

pith:2021:3SUEQRMKD7DDSD5VQQANBZ5WZP

not attested not anchored not stored refs pending

Relations between mid-IR dust emission and UV extinction

Derck Massa, E. L. Fitzpatrick, Karl D. Gordon

arxiv:2112.02631 v1 · 2021-12-05 · 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{3SUEQRMKD7DDSD5VQQANBZ5WZP}

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	2026-07-05T03:53:13.513116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dca848458a1fc6390fb58400d0e7b6cbc140d36ce6546b36d904c6ddda61a413

Aliases

arxiv: 2112.02631 · arxiv_version: 2112.02631v1 · doi: 10.48550/arxiv.2112.02631 · pith_short_12: 3SUEQRMKD7DD · pith_short_16: 3SUEQRMKD7DDSD5V · pith_short_8: 3SUEQRMK

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/3SUEQRMKD7DDSD5VQQANBZ5WZP \
  | 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: dca848458a1fc6390fb58400d0e7b6cbc140d36ce6546b36d904c6ddda61a413

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a03ccdb9ff7fc3b5e827f8fc05a97e3e81c8c2593c79619314152bce285a6309",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-12-05T17:27:32Z",
    "title_canon_sha256": "d7c1972aab862fcd37c66a68c003acb4dfa7c8ea716289f02781f3cdec2664e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.02631",
    "kind": "arxiv",
    "version": 1
  }
}