Pith Number

pith:EDHPIIS5

pith:2008:EDHPIIS5R6VDWD2ZUYQAUOBSNO

not attested not anchored not stored refs pending

Merging Cold Fronts in the Galaxy Pair NGC 7619 and NGC 7626

C. Jones, E. O'Sullivan, R. Kraft, S. W. Randall, W. R. Forman

arxiv:0811.1217 v2 · 2008-11-07 · 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{EDHPIIS5R6VDWD2ZUYQAUOBSNO}

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	2026-05-18T04:29:25.321790Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20cef4225d8faa3b0f59a6200a38326b8f5b67f1a8ca48c7c8f6bdddbf53f481

Aliases

arxiv: 0811.1217 · arxiv_version: 0811.1217v2 · doi: 10.48550/arxiv.0811.1217 · pith_short_12: EDHPIIS5R6VD · pith_short_16: EDHPIIS5R6VDWD2Z · pith_short_8: EDHPIIS5

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/EDHPIIS5R6VDWD2ZUYQAUOBSNO \
  | 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: 20cef4225d8faa3b0f59a6200a38326b8f5b67f1a8ca48c7c8f6bdddbf53f481

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a12a84c9de0ebc311fdd8b0716eeefbbc9f10b58fb80e2af897028b4c49a487",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-07T21:02:40Z",
    "title_canon_sha256": "9ed33a0be4b6763fe9ef8b6c538e03f0448b3f470bc0beec1bedba113c4ebb22"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.1217",
    "kind": "arxiv",
    "version": 2
  }
}