Pith Number

pith:K2SRG3MR

pith:2002:K2SRG3MRXTACTQWVAAOUEZJHBV

not attested not anchored not stored refs pending

Thermal OH (1667/65 MHz) Absorption and Nonthermal OH (1720 MHz) Emission Towards the W28 Supernova Remnant

D.A. Roberts, F. Yusef-Zadeh, M. Wardle

arxiv:astro-ph/0209485 v1 · 2002-09-23 · 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{K2SRG3MRXTACTQWVAAOUEZJHBV}

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	2026-05-18T01:07:44.494724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

56a5136d91bcc029c2d5001d4265270d404ffac84baf7c9065f8d4f7ee3eefa9

Aliases

arxiv: astro-ph/0209485 · arxiv_version: astro-ph/0209485v1 · doi: 10.48550/arxiv.astro-ph/0209485 · pith_short_12: K2SRG3MRXTAC · pith_short_16: K2SRG3MRXTACTQWV · pith_short_8: K2SRG3MR

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/K2SRG3MRXTACTQWVAAOUEZJHBV \
  | 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: 56a5136d91bcc029c2d5001d4265270d404ffac84baf7c9065f8d4f7ee3eefa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab8ba2b37d1477a0753fe3942b5537f3f372919b2b4db2f0c4511e2b26ae63aa",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-09-23T23:42:00Z",
    "title_canon_sha256": "ecd38cdb9bc9e5008c85a8da89ba9f726368bd00b4139d9c391894bfa43008ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0209485",
    "kind": "arxiv",
    "version": 1
  }
}