Pith Number

pith:TM2RK5TN

pith:2011:TM2RK5TNTPLMZVYUJE3NQKRR67

not attested not anchored not stored refs pending

Models of Stephan's Quintet: Hydrodynamic Constraints on the Group's Evolution

Curtis Struck (Iowa State), Florent Renaud (U. Paris Diderot), Jeong-Sun Hwang (KIAS, Philip Appleton (NHSC Caltech), Seoul)

arxiv:1109.4161 v1 · 2011-09-19 · 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{TM2RK5TNTPLMZVYUJE3NQKRR67}

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	2026-05-18T02:00:29.049692Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9b3515766d9bd6ccd7144936d82a31f7e8301de6e73f44a0b90ea73da5d2377c

Aliases

arxiv: 1109.4161 · arxiv_version: 1109.4161v1 · doi: 10.48550/arxiv.1109.4161 · pith_short_12: TM2RK5TNTPLM · pith_short_16: TM2RK5TNTPLMZVYU · pith_short_8: TM2RK5TN

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/TM2RK5TNTPLMZVYUJE3NQKRR67 \
  | 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: 9b3515766d9bd6ccd7144936d82a31f7e8301de6e73f44a0b90ea73da5d2377c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5693a15a457bc13ca1bfd42630b783b5c58d6530136ce8a97b966f8a80d61a26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-09-19T20:17:07Z",
    "title_canon_sha256": "5f5829daf30be3d99dd1fe4506a6b9070474eb5c36f0bc24e903696a8ccfb418"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4161",
    "kind": "arxiv",
    "version": 1
  }
}