Pith Number

pith:FYG6Z3UY

pith:2009:FYG6Z3UYNMV3DM7KUTHKAZFC67

not attested not anchored not stored refs pending

On Neutral Absorption and Spectral Evolution in X-ray Binaries

(2) University of Cambridge), E. M. Cackett (1), J. M. Miller (1), R. C. Reis (2) ((1) University of Michigan

arxiv:0910.2877 v1 · 2009-10-15 · astro-ph.HE · 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{FYG6Z3UYNMV3DM7KUTHKAZFC67}

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	2026-05-18T02:34:18.698923Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e0decee986b2bb1b3eaa4cea064a2f7ed4cce0a481f25379ab3b45e9401a383

Aliases

arxiv: 0910.2877 · arxiv_version: 0910.2877v1 · doi: 10.48550/arxiv.0910.2877 · pith_short_12: FYG6Z3UYNMV3 · pith_short_16: FYG6Z3UYNMV3DM7K · pith_short_8: FYG6Z3UY

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/FYG6Z3UYNMV3DM7KUTHKAZFC67 \
  | 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: 2e0decee986b2bb1b3eaa4cea064a2f7ed4cce0a481f25379ab3b45e9401a383

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87a164b2dcbdf100b8709d1e1a2ebf7fcd67a6f57533c24cce6f201bf84ef80b",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-10-15T14:00:15Z",
    "title_canon_sha256": "cdafcb3a976e342b246a71a14cd526367f56fcee07b863c89f63ecc4106e3f36"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.2877",
    "kind": "arxiv",
    "version": 1
  }
}