Pith Number

pith:MIA4RF4D

pith:2017:MIA4RF4DMG7Z43UPTDQHRNKK2F

not attested not anchored not stored refs pending

IFU spectroscopy of Southern Planetary Nebulae IV: A Physical Model for IC 418

A. Ali, D.C. Nicholls, M. A. Amer, M.A. Dopita, R.S. Sutherland

arxiv:1705.03974 v1 · 2017-05-10 · 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{MIA4RF4DMG7Z43UPTDQHRNKK2F}

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	2026-05-18T00:40:57.699928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6201c8978361bf9e6e8f98e078b54ad17f9c635a669f4c7af70c8801a4f002f0

Aliases

arxiv: 1705.03974 · arxiv_version: 1705.03974v1 · doi: 10.48550/arxiv.1705.03974 · pith_short_12: MIA4RF4DMG7Z · pith_short_16: MIA4RF4DMG7Z43UP · pith_short_8: MIA4RF4D

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/MIA4RF4DMG7Z43UPTDQHRNKK2F \
  | 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: 6201c8978361bf9e6e8f98e078b54ad17f9c635a669f4c7af70c8801a4f002f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c539e76877fd2a43ddef177b05a29ba6afab16dc0decaa28a640a2e4028a9dde",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-05-10T23:39:54Z",
    "title_canon_sha256": "a9b1685d7c4afff7cf30d9724372a3377f5fbc1021873b6606e829a3daebcc58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03974",
    "kind": "arxiv",
    "version": 1
  }
}