Pith Number

pith:42A3PE5Q

pith:2016:42A3PE5Q447GWSP7XKIJC6IQGF

not attested not anchored not stored refs pending

MAXI observations of long-term variations of Cygnus X-1 in the low/hard and the high/soft states

Hitoshi Negoro, Juri Sugimoto, Kazuo Makishima, Masaru Matsuoka, Mutsumi Sugizaki, Satoshi Nakahira, Shunji Kitamoto, Tatehiro Mihara

arxiv:1601.02740 v1 · 2016-01-12 · 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{42A3PE5Q447GWSP7XKIJC6IQGF}

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	2026-05-18T01:13:15.708301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e681b793b0e73e6b49ffba909179103171c0ca21d2e40b9423d6cc3f230a839f

Aliases

arxiv: 1601.02740 · arxiv_version: 1601.02740v1 · doi: 10.48550/arxiv.1601.02740 · pith_short_12: 42A3PE5Q447G · pith_short_16: 42A3PE5Q447GWSP7 · pith_short_8: 42A3PE5Q

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/42A3PE5Q447GWSP7XKIJC6IQGF \
  | 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: e681b793b0e73e6b49ffba909179103171c0ca21d2e40b9423d6cc3f230a839f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "743412508c94aee3e45c6363620d5df3f6f7443d3f9708d7dab0b07e7687867f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-01-12T06:10:29Z",
    "title_canon_sha256": "77de7e5a31cd6e073b7a9568c9342ada233308c91061db8defa208c87e94f07d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1601.02740",
    "kind": "arxiv",
    "version": 1
  }
}