Pith Number

pith:RI4KPBJ2

pith:2016:RI4KPBJ2CQHJQD6RXMMOAFMW7O

not attested not anchored not stored refs pending

Tensor classification of structure in smoothed particle hydrodynamics density fields

Duncan Forgan, Ian Bonnell, Ken Rice, William Lucas

arxiv:1601.02580 v1 · 2016-01-11 · astro-ph.IM · astro-ph.EP · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RI4KPBJ2CQHJQD6RXMMOAFMW7O}

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	2026-05-18T01:20:32.259370Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8a38a7853a140e980fd1bb18e01596fbbfd3ea56bd80e955b203fc7ac4e0505c

Aliases

arxiv: 1601.02580 · arxiv_version: 1601.02580v1 · doi: 10.48550/arxiv.1601.02580 · pith_short_12: RI4KPBJ2CQHJ · pith_short_16: RI4KPBJ2CQHJQD6R · pith_short_8: RI4KPBJ2

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/RI4KPBJ2CQHJQD6RXMMOAFMW7O \
  | 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: 8a38a7853a140e980fd1bb18e01596fbbfd3ea56bd80e955b203fc7ac4e0505c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed00f94c6b4dedc0f50d01647ec7faef802734513db9c9e5a0772c9ad383a35c",
    "cross_cats_sorted": [
      "astro-ph.EP",
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2016-01-11T20:22:33Z",
    "title_canon_sha256": "d45c9dbe1790bc14d710b11c0e9968b734f91f4a9b52ebe6d83d28467e5d1608"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02580",
    "kind": "arxiv",
    "version": 1
  }
}