Pith Number

pith:EMAJDUT2

pith:2001:EMAJDUT2PDRPIQUJVMOFTD23EX

not attested not anchored not stored refs pending

Are You Ready to FLY in the Universe ? A Multi-platform N-body Tree Code for Parallel Supercomputers

U. Becciani, V. Antonuccio-Delogu

arxiv:astro-ph/0101148 v1 · 2001-01-10 · 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{EMAJDUT2PDRPIQUJVMOFTD23EX}

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	2026-07-04T16:22:33.249022Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

230091d27a78e2f44289ab1c598f5b25d3b9fe4b90dd0cc8439897c96ab1dc5e

Aliases

arxiv: astro-ph/0101148 · arxiv_version: astro-ph/0101148v1 · doi: 10.48550/arxiv.astro-ph/0101148 · pith_short_12: EMAJDUT2PDRP · pith_short_16: EMAJDUT2PDRPIQUJ · pith_short_8: EMAJDUT2

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/EMAJDUT2PDRPIQUJVMOFTD23EX \
  | 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: 230091d27a78e2f44289ab1c598f5b25d3b9fe4b90dd0cc8439897c96ab1dc5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cfd89f1d597cd7be744596d819ff0aa7ac3c349e3b1498c31157fc4cf1f7ecd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-01-10T07:34:42Z",
    "title_canon_sha256": "11b23e7dc7090ac19e8c9655763ebfca890740348b63bb937005679e6b3b4b0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0101148",
    "kind": "arxiv",
    "version": 1
  }
}