Pith Number

pith:PDQQ3GZP

pith:2011:PDQQ3GZPMXCIQ3JNTUSFMPKTJN

not attested not anchored not stored refs pending

Why Supersoft X-ray Fluxes are So Weak in Early-type Galaxies? -- A Clue to Type Ia SN Progenitors --

Mariko Kato

arxiv:1110.0056 v1 · 2011-10-01 · astro-ph.SR

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

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	2026-05-18T04:11:50.826468Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78e10d9b2f65c4886d2d9d24563d534b6171b8ac4dfc73fbd07fc31ef7f1ebc7

Aliases

arxiv: 1110.0056 · arxiv_version: 1110.0056v1 · doi: 10.48550/arxiv.1110.0056 · pith_short_12: PDQQ3GZPMXCI · pith_short_16: PDQQ3GZPMXCIQ3JN · pith_short_8: PDQQ3GZP

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/PDQQ3GZPMXCIQ3JNTUSFMPKTJN \
  | 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: 78e10d9b2f65c4886d2d9d24563d534b6171b8ac4dfc73fbd07fc31ef7f1ebc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80fd8c4d4978ad797474d128c652a286493de50a2981ca805daea4dd00db4bac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-10-01T00:25:04Z",
    "title_canon_sha256": "4808e88c3c5faf6731ad0c42b4d20c7792262bc14e81ee4c37aa0573e116db68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.0056",
    "kind": "arxiv",
    "version": 1
  }
}