Pith Number

pith:FQDTSTQM

pith:2013:FQDTSTQMYVDBZEZDSPE62DCMEN

not attested not anchored not stored refs pending

Numerical resolution effects on simulations of massive black hole seeds

John A. Regan, Martin G. Haehnelt, Peter H. Johansson

arxiv:1312.4962 v2 · 2013-12-17 · astro-ph.CO · 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{FQDTSTQMYVDBZEZDSPE62DCMEN}

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	2026-05-18T02:57:07.834883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c07394e0cc5461c932393c9ed0c4c2357acecb6a308eec2e401a112f90362ee

Aliases

arxiv: 1312.4962 · arxiv_version: 1312.4962v2 · doi: 10.48550/arxiv.1312.4962 · pith_short_12: FQDTSTQMYVDB · pith_short_16: FQDTSTQMYVDBZEZD · pith_short_8: FQDTSTQM

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/FQDTSTQMYVDBZEZDSPE62DCMEN \
  | 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: 2c07394e0cc5461c932393c9ed0c4c2357acecb6a308eec2e401a112f90362ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b670714130454dd1700e317968a2266871c3b445e00fb15ffbd3b36a1391c0d3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-12-17T21:00:09Z",
    "title_canon_sha256": "caf2f46d3a57bf0cd2b3fca7c345bf35073a004b1b6c2ee3be88d89d234f4e70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.4962",
    "kind": "arxiv",
    "version": 2
  }
}