Pith Number

pith:UI5FJ6JE

pith:2007:UI5FJ6JER56UXNSJEOB3ANA6JH

not attested not anchored not stored refs pending

Spitzer/IRS spectroscopy of high mass precursors to planetary nebulae

D. A. Garcia-Hernandez, J. V. Perea-Calderon, M. Bobrowsky, P.Garcia-Lario

arxiv:0707.4314 v1 · 2007-07-29 · astro-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{UI5FJ6JER56UXNSJEOB3ANA6JH}

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	2026-05-18T03:49:10.679835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a23a54f9248f7d4bb6492383b0341e49e76d05ab5770a26fc47bb7263d0274b7

Aliases

arxiv: 0707.4314 · arxiv_version: 0707.4314v1 · doi: 10.48550/arxiv.0707.4314 · pith_short_12: UI5FJ6JER56U · pith_short_16: UI5FJ6JER56UXNSJ · pith_short_8: UI5FJ6JE

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/UI5FJ6JER56UXNSJEOB3ANA6JH \
  | 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: a23a54f9248f7d4bb6492383b0341e49e76d05ab5770a26fc47bb7263d0274b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aacb04385544ab00014038744b1a64b8a184a74c85832fec2a73d24e7da251da",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-07-29T21:13:19Z",
    "title_canon_sha256": "db8cd74bb2c623d77bb556dbc9f9021b238de703f31ed987f009868a8ee5218e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0707.4314",
    "kind": "arxiv",
    "version": 1
  }
}