Pith Number

pith:U7ZALIDC

pith:2015:U7ZALIDCIEUPAECX6B7DY7BWSN

not attested not anchored not stored refs pending

X-ray photometry

M.J. Page

arxiv:1506.07015 v1 · 2015-06-23 · astro-ph.IM · 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{U7ZALIDCIEUPAECX6B7DY7BWSN}

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	2026-05-18T01:35:46.576139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7f205a0624128f01057f07e3c7c369350911cb55ade531e6328229eab6b653d

Aliases

arxiv: 1506.07015 · arxiv_version: 1506.07015v1 · doi: 10.48550/arxiv.1506.07015 · pith_short_12: U7ZALIDCIEUP · pith_short_16: U7ZALIDCIEUPAECX · pith_short_8: U7ZALIDC

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/U7ZALIDCIEUPAECX6B7DY7BWSN \
  | 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: a7f205a0624128f01057f07e3c7c369350911cb55ade531e6328229eab6b653d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3446fdb899063b729828b4fe076ceebf488ac00164ed435d8d527838eb69747a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2015-06-23T14:07:42Z",
    "title_canon_sha256": "6f48b43d7462a8788547d4ff0ca7ab562beb66c5a181d27ff463c26dd54e2bba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.07015",
    "kind": "arxiv",
    "version": 1
  }
}