Pith Number

pith:YG2RKMRK

pith:2011:YG2RKMRKSNAXWQEZQR325PLQKX

not attested not anchored not stored refs pending

On the Progenitors of Galactic Novae

2), (2) Astrophysics, 3) ((1) Astrophysics Research Institute, (3) Department of Physics, Birkenhead, CH41 1LD, Cosmology, Department of Astronomy, Egerton Wharf, Gravity Centre, L69 7ZE, Liverpool, Liverpool John Moores University, M. F. Bode (1), M. J. Darnley (1), Private Bag X3, R. A. Hounsell (1), Rondebosch 7701, R. P. Williams (1, South Africa, The University of Liverpool, UK, UK), University of Cape Town, V. A. R. M. Ribeiro (1

arxiv:1112.2589 v1 · 2011-12-12 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YG2RKMRKSNAXWQEZQR325PLQKX}

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	2026-05-18T01:59:11.733903Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1b515322a93417b40998477aebd7055d3fd255606ece6f5f3dfbcbab33bae7c

Aliases

arxiv: 1112.2589 · arxiv_version: 1112.2589v1 · doi: 10.48550/arxiv.1112.2589 · pith_short_12: YG2RKMRKSNAX · pith_short_16: YG2RKMRKSNAXWQEZ · pith_short_8: YG2RKMRK

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/YG2RKMRKSNAXWQEZQR325PLQKX \
  | 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: c1b515322a93417b40998477aebd7055d3fd255606ece6f5f3dfbcbab33bae7c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1942ebb761aea0248c0b9705aa2170f9abe9a6f6f5aa4eb0f49f2a119aac53ad",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-12-12T15:34:44Z",
    "title_canon_sha256": "b89d623571c1536e12c2a7a217e73086b6e79b5f412aff4f9578e3ee15988390"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.2589",
    "kind": "arxiv",
    "version": 1
  }
}