Pith Number

pith:67HZ47I2

pith:2011:67HZ47I2MMBYORGOKACPYZ73QF

not attested not anchored not stored refs pending

When Shape Matters: correcting the ICFs to derive the chemical abundances of bipolar and elliptical PNe

B. Ercolano, C. Morisset, D. R. Goncalves, M. Barlow, R. Wesson

arxiv:1110.2709 v1 · 2011-10-12 · 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{67HZ47I2MMBYORGOKACPYZ73QF}

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	2026-05-18T02:00:13.120968Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f7cf9e7d1a63038744ce5004fc67fb8172221b2ffe459373b8e05b4e1d97c8bd

Aliases

arxiv: 1110.2709 · arxiv_version: 1110.2709v1 · doi: 10.48550/arxiv.1110.2709 · pith_short_12: 67HZ47I2MMBY · pith_short_16: 67HZ47I2MMBYORGO · pith_short_8: 67HZ47I2

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/67HZ47I2MMBYORGOKACPYZ73QF \
  | 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: f7cf9e7d1a63038744ce5004fc67fb8172221b2ffe459373b8e05b4e1d97c8bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91cbd56ba3f5a5290b1a3c7d2f96bd00a12ee53a88926a81147aaefe057cacc3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-10-12T17:14:19Z",
    "title_canon_sha256": "546ccedbabbd7feaa4d0569f0e5e6728b7fde8462665bf1d5df42f72464d2df5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.2709",
    "kind": "arxiv",
    "version": 1
  }
}