Pith Number

pith:O4KO5N4D

pith:2015:O4KO5N4D277I2JXFYTNDO37MUI

not attested not anchored not stored refs pending

On wave dark matter in spiral and barred galaxies

Hubert L. Bray, L. A. Martinez-Medina, Tonatiuh Matos

arxiv:1505.07154 v2 · 2015-05-26 · 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{O4KO5N4D277I2JXFYTNDO37MUI}

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	2026-05-18T01:24:24.830016Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7714eeb783d7fe8d26e5c4da376feca2221e82bf0d4fe8a4bb197d2b1c9cf04d

Aliases

arxiv: 1505.07154 · arxiv_version: 1505.07154v2 · doi: 10.48550/arxiv.1505.07154 · pith_short_12: O4KO5N4D277I · pith_short_16: O4KO5N4D277I2JXF · pith_short_8: O4KO5N4D

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/O4KO5N4D277I2JXFYTNDO37MUI \
  | 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: 7714eeb783d7fe8d26e5c4da376feca2221e82bf0d4fe8a4bb197d2b1c9cf04d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90df8045c90511964cb6b89290bdaca48af2460276319442954a159835169763",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-05-26T22:46:28Z",
    "title_canon_sha256": "c8699fcb4ef330d25e245d4d1d41571b1178458b4b83d76b32907d6b9141850f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.07154",
    "kind": "arxiv",
    "version": 2
  }
}