Pith Number

pith:LGYDC7DZ

pith:2018:LGYDC7DZYBDDJ3VWANGO7TXVDM

not attested not anchored not stored refs pending

PAHs and star formation in the HII regions of nearby galaxies M83 and M33

A.G.G.M. Tielens, A. Maragkoudakis, D. Hemachandra, D. J. Stock, E. Peeters, N. Ivkovich

arxiv:1809.10136 v1 · 2018-09-26 · 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{LGYDC7DZYBDDJ3VWANGO7TXVDM}

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	2026-05-18T00:03:01.251540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59b0317c79c04634eeb6034cefcef51b2d12ee0f784b9efc0e1ac3ce4ab66b27

Aliases

arxiv: 1809.10136 · arxiv_version: 1809.10136v1 · doi: 10.48550/arxiv.1809.10136 · pith_short_12: LGYDC7DZYBDD · pith_short_16: LGYDC7DZYBDDJ3VW · pith_short_8: LGYDC7DZ

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/LGYDC7DZYBDDJ3VWANGO7TXVDM \
  | 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: 59b0317c79c04634eeb6034cefcef51b2d12ee0f784b9efc0e1ac3ce4ab66b27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "931dacd9a944bf59b04f26723755c4b41088b688ebbb6106e714602efb8e5dcd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-09-26T17:48:33Z",
    "title_canon_sha256": "7a2b41b99fb626c10ef62628e738fab8d65aa944eb8436e9cc46df8595d9aa28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.10136",
    "kind": "arxiv",
    "version": 1
  }
}