Pith Number

pith:NPIRURYB

pith:2015:NPIRURYBTIR3OVFO4GNFJUX36P

not attested not anchored not stored refs pending

A non-parametric method for measuring the local dark matter density

Gianfranco Bertone, Hamish Silverwood, Justin I. Read, Pascal Steger, Sofia Sivertsson

arxiv:1507.08581 v2 · 2015-07-30 · astro-ph.GA · 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{NPIRURYBTIR3OVFO4GNFJUX36P}

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	2026-05-18T01:15:23.394068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bd11a47019a23b754aee19a54d2fbf3f73d3027807ade615ab046a8f8b0dbe9

Aliases

arxiv: 1507.08581 · arxiv_version: 1507.08581v2 · doi: 10.48550/arxiv.1507.08581 · pith_short_12: NPIRURYBTIR3 · pith_short_16: NPIRURYBTIR3OVFO · pith_short_8: NPIRURYB

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/NPIRURYBTIR3OVFO4GNFJUX36P \
  | 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: 6bd11a47019a23b754aee19a54d2fbf3f73d3027807ade615ab046a8f8b0dbe9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b65f82f2e29bcbd76e69169bc9ed444e2542eb1b0443979e7df96b573a82618f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-30T16:56:02Z",
    "title_canon_sha256": "da6aec6ece35f4bc58c77e55883aeb5c22f9bbb478666e13ae77249212105fb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.08581",
    "kind": "arxiv",
    "version": 2
  }
}