Pith Number

pith:GQCZRT3H

pith:2010:GQCZRT3H2MAPZ3N2YQYM6XSFLW

not attested not anchored not stored refs pending

Discovery of an unusual new radio source in the star-forming galaxy M82: Faint supernova, supermassive blackhole, or an extra-galactic microquasar?

(2)UCL, (3) ICRAR, (4) Durham, (5)IESL, 6), (6) Harvard CfA, (7) MPIfR, A. Brunthaler (7) ((1)Jodrell Bank Centre for Astrophysics, A. Pedlar (1), A. Zezas (5, Bonn), Crete, Curtin, D. M. Fenech (2), J. van Eymeren (1), Manchester, M. K. Argo (3), M. Ward (4), R. J. Beswick (1), S. T. Garrington (1), T. W. B. Muxlow (1)

arxiv:1003.0994 v1 · 2010-03-04 · astro-ph.CO · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GQCZRT3H2MAPZ3N2YQYM6XSFLW}

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	2026-05-18T02:08:46.505016Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

340598cf67d300fcedbac430cf5e455d97649ceebd223d0978d1e8dddfe14fe1

Aliases

arxiv: 1003.0994 · arxiv_version: 1003.0994v1 · doi: 10.48550/arxiv.1003.0994 · pith_short_12: GQCZRT3H2MAP · pith_short_16: GQCZRT3H2MAPZ3N2 · pith_short_8: GQCZRT3H

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/GQCZRT3H2MAPZ3N2YQYM6XSFLW \
  | 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: 340598cf67d300fcedbac430cf5e455d97649ceebd223d0978d1e8dddfe14fe1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "916c98980608f9e6198aac8a0ba81aff43e3d7abb1aa3f3af241ee85e11c09e9",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-03-04T10:09:40Z",
    "title_canon_sha256": "cf848e0e2fa320dd5042f49f81bf860c3ef9f82f5eff527c65b1bc5fe1487cea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.0994",
    "kind": "arxiv",
    "version": 1
  }
}