Pith Number

pith:7Z67DLY5

pith:2013:7Z67DLY56V5ZWB5GIEN354YWRD

not attested not anchored not stored refs pending

The [O III] Nebula of the Merger Remnant NGC 7252: A Likely Faint Ionization Echo

(2) University of Michigan, (3) Steward Observatory), Daniel D. Kelson (1), Edward V. Villanueva (1), Francois Schweizer (1), Gregory L. Walth (3) ((1) Carnegie Observatories, Patrick Seitzer (2)

arxiv:1307.2233 v1 · 2013-07-08 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7Z67DLY56V5ZWB5GIEN354YWRD}

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	2026-05-17T23:47:49.538880Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe7df1af1df57b9b07a6411bbef31688d8107994eecc7c8988ca49edd7ed341a

Aliases

arxiv: 1307.2233 · arxiv_version: 1307.2233v1 · doi: 10.48550/arxiv.1307.2233 · pith_short_12: 7Z67DLY56V5Z · pith_short_16: 7Z67DLY56V5ZWB5G · pith_short_8: 7Z67DLY5

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/7Z67DLY56V5ZWB5GIEN354YWRD \
  | 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: fe7df1af1df57b9b07a6411bbef31688d8107994eecc7c8988ca49edd7ed341a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2194c8c98a9683046a6067bc5b39b24874506dfc895478afea77147e572b076c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-08T20:00:01Z",
    "title_canon_sha256": "8ae9c8d93e69624490c3c647a008b35eb9ea06ddc707502fe397e70c71b7a74d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2233",
    "kind": "arxiv",
    "version": 1
  }
}