Pith Number

pith:Z7PNMMCQ

pith:2011:Z7PNMMCQUINDFND2YH7AKFO45B

not attested not anchored not stored refs pending

The velocity width function of galaxies from the 40% ALFALFA survey: shedding light on the cold dark matter overabundance problem

Ann M. Martin, Emmanouil Papastergis, Martha P. Haynes, Riccardo Giovanelli

arxiv:1106.0710 v2 · 2011-06-03 · 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{Z7PNMMCQUINDFND2YH7AKFO45B}

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	2026-05-18T04:11:40.560173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfded63050a21a32b47ac1fe0515dce8530f47cf43a812129130b2d511513457

Aliases

arxiv: 1106.0710 · arxiv_version: 1106.0710v2 · doi: 10.48550/arxiv.1106.0710 · pith_short_12: Z7PNMMCQUIND · pith_short_16: Z7PNMMCQUINDFND2 · pith_short_8: Z7PNMMCQ

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/Z7PNMMCQUINDFND2YH7AKFO45B \
  | 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: cfded63050a21a32b47ac1fe0515dce8530f47cf43a812129130b2d511513457

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85ca37b85da2e7f8f54f45f1465379591a7aa06937fe030d49e8f1cb62473b31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-06-03T17:23:10Z",
    "title_canon_sha256": "162a8ba631c16e5d6e2bf9624533227fa901f160ec2c2f6c0141f1665a2fb1ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1106.0710",
    "kind": "arxiv",
    "version": 2
  }
}