Pith Number

pith:5G6VTSN6

pith:2008:5G6VTSN6HENVUSWWN3CPFG7PVX

not attested not anchored not stored refs pending

The softening phenomenon due to the curvature effect: in the case of extremely short intrinsic emission

Y.-P. Qin

arxiv:0806.3339 v2 · 2008-06-20 · 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{5G6VTSN6HENVUSWWN3CPFG7PVX}

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	2026-05-18T04:29:33.405164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9bd59c9be391b5a4ad66ec4f29befadd5ebec91d00cac2ab0c37a4f7c9a47f8

Aliases

arxiv: 0806.3339 · arxiv_version: 0806.3339v2 · doi: 10.48550/arxiv.0806.3339 · pith_short_12: 5G6VTSN6HENV · pith_short_16: 5G6VTSN6HENVUSWW · pith_short_8: 5G6VTSN6

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/5G6VTSN6HENVUSWWN3CPFG7PVX \
  | 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: e9bd59c9be391b5a4ad66ec4f29befadd5ebec91d00cac2ab0c37a4f7c9a47f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ece0dd4215cede21361103ddb7d1f7febd6e5e9eb8578e924a756b50edcb33a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-06-20T08:05:58Z",
    "title_canon_sha256": "8fd54c1124627b1c9c49069cf9b95d0c52d37363fbed28f35093e477d8a5e76c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.3339",
    "kind": "arxiv",
    "version": 2
  }
}