Pith Number

pith:O6QKTZ7I

pith:2015:O6QKTZ7I4K4TUXA2EASUNJMA63

not attested not anchored not stored refs pending

The dust and gas content of the Crab Nebula

M. J. Barlow, P. J. Owen

arxiv:1501.01510 v2 · 2015-01-07 · 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{O6QKTZ7I4K4TUXA2EASUNJMA63}

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	2026-05-18T01:41:14.042214Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77a0a9e7e8e2b93a5c1a202546a580f6d34b4105852b6e8ca026ad523aa7d39b

Aliases

arxiv: 1501.01510 · arxiv_version: 1501.01510v2 · doi: 10.48550/arxiv.1501.01510 · pith_short_12: O6QKTZ7I4K4T · pith_short_16: O6QKTZ7I4K4TUXA2 · pith_short_8: O6QKTZ7I

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/O6QKTZ7I4K4TUXA2EASUNJMA63 \
  | 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: 77a0a9e7e8e2b93a5c1a202546a580f6d34b4105852b6e8ca026ad523aa7d39b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50d62a6c3ba3dac53fac33daaba306c5f5ef9551c28f1c0e96686cfc486c142c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-01-07T14:58:26Z",
    "title_canon_sha256": "c2d2d3050ca78b717a05667ee628d2eab1604b378ae50d64274b1cc809668fe3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.01510",
    "kind": "arxiv",
    "version": 2
  }
}