Pith Number

pith:PPCTB3K3

pith:2003:PPCTB3K3KTWJ37QKA7C2VREIQH

not attested not anchored not stored refs pending

Photometry and low resolution spectroscopy of hot post-AGB candidates

Brijesh Kumar, G. Gauba, M. Parthasarathy, Ram Sagar, R.K.S. Yadav

arxiv:astro-ph/0303320 v1 · 2003-03-14 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PPCTB3K3KTWJ37QKA7C2VREIQH}

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	2026-07-04T16:36:40.062021Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7bc530ed5b54ec9dfe0a07c5aac48881e1281d221baf5e8909b5562850f47f35

Aliases

arxiv: astro-ph/0303320 · arxiv_version: astro-ph/0303320v1 · doi: 10.48550/arxiv.astro-ph/0303320 · pith_short_12: PPCTB3K3KTWJ · pith_short_16: PPCTB3K3KTWJ37QK · pith_short_8: PPCTB3K3

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/PPCTB3K3KTWJ37QKA7C2VREIQH \
  | 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: 7bc530ed5b54ec9dfe0a07c5aac48881e1281d221baf5e8909b5562850f47f35

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9466021a9f8cbd30a220cddb87379a1fc201fa7454e25d03875534ae8b081326",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-03-14T06:21:48Z",
    "title_canon_sha256": "5753239f3dd0b8c2fe1ea2b59e43c7b69a582276c774440bea4dc4842ee7b44b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0303320",
    "kind": "arxiv",
    "version": 1
  }
}