Pith Number

pith:2WF254O3

pith:2009:2WF254O3GHTYQO5KULILKVRMZP

not attested not anchored not stored refs pending

Revisiting the relativistic ejection event in XTE J1550-564 during the 1998 outburst

A. K. Tzioumis, D. Campbell-Wilson, D. C. Hannikainen, J. E. J. Lovell, J. Reynolds, K. Wu, M. L. McCollough, R. W. Hunstead, V. McIntyre

arxiv:0904.4849 v1 · 2009-04-30 · 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{2WF254O3GHTYQO5KULILKVRMZP}

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	2026-05-18T02:13:48.767817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d58baef1db31e7883baaa2d0b5562ccbc0a7fd489b1e99b5523d2e9cc5358fc8

Aliases

arxiv: 0904.4849 · arxiv_version: 0904.4849v1 · doi: 10.48550/arxiv.0904.4849 · pith_short_12: 2WF254O3GHTY · pith_short_16: 2WF254O3GHTYQO5K · pith_short_8: 2WF254O3

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/2WF254O3GHTYQO5KULILKVRMZP \
  | 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: d58baef1db31e7883baaa2d0b5562ccbc0a7fd489b1e99b5523d2e9cc5358fc8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c154d44bb9b4f71a047dad528dc842b3b8843fca14c7304d396f27a0127939c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-04-30T14:39:52Z",
    "title_canon_sha256": "5b57d0b8478fb84c9c433b5784432ad1adcb7a3f5fd7adec929f4c468fcad2ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.4849",
    "kind": "arxiv",
    "version": 1
  }
}