Pith Number

pith:2F2VJIIA

pith:2023:2F2VJIIA2GTM3US67IMNSPS32B

not attested not anchored not stored refs pending

Observed Dust Surface Density Across Cosmic Times

Annalisa De Cia, C\'eline P\'eroux, J. Christopher Howk

arxiv:2305.07743 v1 · 2023-05-12 · 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{2F2VJIIA2GTM3US67IMNSPS32B}

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	2026-07-05T06:09:53.327837Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d17554a100d1a6cdd25efa18d93e5bd04b1dd4439625624686fa864b3759a4a7

Aliases

arxiv: 2305.07743 · arxiv_version: 2305.07743v1 · doi: 10.48550/arxiv.2305.07743 · pith_short_12: 2F2VJIIA2GTM · pith_short_16: 2F2VJIIA2GTM3US6 · pith_short_8: 2F2VJIIA

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/2F2VJIIA2GTM3US67IMNSPS32B \
  | 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: d17554a100d1a6cdd25efa18d93e5bd04b1dd4439625624686fa864b3759a4a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4c162ca79fc91cfcc4fe20fcd919fb1602670c1e29ef846ef0b3fc48e82abc5e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-05-12T20:00:01Z",
    "title_canon_sha256": "153c717a8fcc14cc0e2cf5ce994b68fe9cbb34a9dd3834d45ccdc1340ac390a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2305.07743",
    "kind": "arxiv",
    "version": 1
  }
}