Pith Number

pith:6ZGTHD4L

pith:2009:6ZGTHD4LGPURZBQN3OU5HSVLBM

not attested not anchored not stored refs pending

Associated Spectral and Temporal State Transition of the bright ULX NGC1313 X-1

A. R. Rao (TIFR), G. C. Dewangan (IUCAA), R. E. Griffiths (CMU), R. Misra (IUCAA)

arxiv:0905.3819 v1 · 2009-05-23 · 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{6ZGTHD4LGPURZBQN3OU5HSVLBM}

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	2026-05-18T02:13:37.893862Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f64d338f8b33e91c860ddba9d3caab0b398a350bc9b53407b98d053f3fb185db

Aliases

arxiv: 0905.3819 · arxiv_version: 0905.3819v1 · doi: 10.48550/arxiv.0905.3819 · pith_short_12: 6ZGTHD4LGPUR · pith_short_16: 6ZGTHD4LGPURZBQN · pith_short_8: 6ZGTHD4L

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/6ZGTHD4LGPURZBQN3OU5HSVLBM \
  | 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: f64d338f8b33e91c860ddba9d3caab0b398a350bc9b53407b98d053f3fb185db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c1eba910782315853600af3901394df7df232c14915cc5bd4e3365dd5ea25c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-05-23T13:34:11Z",
    "title_canon_sha256": "e1bcedf7b2c47440e5f37c7b442aa9daf9e9b73a52ba154e48c180258b6b9f01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3819",
    "kind": "arxiv",
    "version": 1
  }
}