Pith Number

pith:IVMYBQZN

pith:2013:IVMYBQZNNXKVWHA34HEXNUK53G

not attested not anchored not stored refs pending

The velocity function of dark matter halos at r=20 kpc: Remarkably little evolution since z ~ 4

Marijn Franx, Pieter van Dokkum, Rachel Bezanson, Simone M. Weinmann

arxiv:1301.2330 v1 · 2013-01-10 · 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{IVMYBQZNNXKVWHA34HEXNUK53G}

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	2026-05-18T01:52:13.689784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

455980c32d6dd55b1c1be1c976d15dd982e68efd85be130346ddcb3bebb89b12

Aliases

arxiv: 1301.2330 · arxiv_version: 1301.2330v1 · doi: 10.48550/arxiv.1301.2330 · pith_short_12: IVMYBQZNNXKV · pith_short_16: IVMYBQZNNXKVWHA3 · pith_short_8: IVMYBQZN

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/IVMYBQZNNXKVWHA34HEXNUK53G \
  | 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: 455980c32d6dd55b1c1be1c976d15dd982e68efd85be130346ddcb3bebb89b12

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7ab0646097d669b3012c2930e0ccfa070748bbc9f447f34124c75651f2b7d1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-10T21:00:05Z",
    "title_canon_sha256": "c8e0ed3234146f5c058e3716d9567a7ae7714da440848667dde06f7290f8a515"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2330",
    "kind": "arxiv",
    "version": 1
  }
}