Pith Number

pith:26NYOQMW

pith:2015:26NYOQMWXEYZ2POS4K3AXWHMEG

not attested not anchored not stored refs pending

Beyond Chandra - the X-ray Surveyor

Alexey Vikhlinin, Harvey Tananbaum, Jessica Gaskin, Martin C. Weisskopf

arxiv:1505.00814 v1 · 2015-05-04 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{26NYOQMWXEYZ2POS4K3AXWHMEG}

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	2026-05-18T02:16:59.954640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d79b874196b9319d3dd2e2b60bd8ec21a437c642704b811f46b9678148460ea7

Aliases

arxiv: 1505.00814 · arxiv_version: 1505.00814v1 · doi: 10.48550/arxiv.1505.00814 · pith_short_12: 26NYOQMWXEYZ · pith_short_16: 26NYOQMWXEYZ2POS · pith_short_8: 26NYOQMW

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/26NYOQMWXEYZ2POS4K3AXWHMEG \
  | 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: d79b874196b9319d3dd2e2b60bd8ec21a437c642704b811f46b9678148460ea7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e52e40263feea27e918e03d1573e23671b6690298d97535d0a516cf6db7048f6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-05-04T21:12:44Z",
    "title_canon_sha256": "0c76347ead19cadc144a70ff1a0760e525871f251b621d939e46661b9543f29f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.00814",
    "kind": "arxiv",
    "version": 1
  }
}