Pith Number

pith:O7L4YBDZ

pith:2015:O7L4YBDZX2LNB27NH56NQFYJ5I

not attested not anchored not stored refs pending

Investigating the cores of fossil systems with Chandra

G. Schellenberger, J. S. Sanders, T. H. Reiprich, V. Bharadwaj

arxiv:1509.04275 v1 · 2015-09-14 · astro-ph.CO · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O7L4YBDZX2LNB27NH56NQFYJ5I}

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	2026-05-18T01:22:58.433262Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77d7cc0479be96d0ebed3f7cd81709ea29632f28d3b8b30910bd3cb7192fa401

Aliases

arxiv: 1509.04275 · arxiv_version: 1509.04275v1 · doi: 10.48550/arxiv.1509.04275 · pith_short_12: O7L4YBDZX2LN · pith_short_16: O7L4YBDZX2LNB27N · pith_short_8: O7L4YBDZ

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/O7L4YBDZX2LNB27NH56NQFYJ5I \
  | 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: 77d7cc0479be96d0ebed3f7cd81709ea29632f28d3b8b30910bd3cb7192fa401

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14a329862dee2aa71395f953ebdbe8797560183154a37be57696d31aa8732e56",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2015-09-14T20:08:25Z",
    "title_canon_sha256": "cb49c4c7e29575ff874632026b0a23df4318f081d787181cf9ec0d7b51bb9c3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.04275",
    "kind": "arxiv",
    "version": 1
  }
}