Pith Number

pith:TEDXFFH2

pith:2009:TEDXFFH2QQTWZDNP6YEAEFUO3F

not attested not anchored not stored refs pending

High Resolution X-ray Imaging of Supernova Remnant 1987A

B. M. Gaensler, C.-Y. Ng, D. N. Burrows, L. Staveley-Smith, P. O. Slane, R. N. Manchester, S. Park, S. S. Murray

arxiv:0910.3610 v1 · 2009-10-19 · 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{TEDXFFH2QQTWZDNP6YEAEFUO3F}

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	2026-05-18T02:34:18.304224Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99077294fa84276c8daff60802168ed95e1e7c513edfd97befa510210e4c9688

Aliases

arxiv: 0910.3610 · arxiv_version: 0910.3610v1 · doi: 10.48550/arxiv.0910.3610 · pith_short_12: TEDXFFH2QQTW · pith_short_16: TEDXFFH2QQTWZDNP · pith_short_8: TEDXFFH2

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/TEDXFFH2QQTWZDNP6YEAEFUO3F \
  | 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: 99077294fa84276c8daff60802168ed95e1e7c513edfd97befa510210e4c9688

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1809639e1c9701e628ae086d14ad4eacb906a5d09d356a3149691f623bfb19ea",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-10-19T19:53:33Z",
    "title_canon_sha256": "fd6a1c8f6360624e5c4092882ecce3a9cf7d601e659436b08ea46a9d5ca8f172"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.3610",
    "kind": "arxiv",
    "version": 1
  }
}