Pith Number

pith:DLZVT2GX

pith:2021:DLZVT2GXW52YGLHORMWBGLRNJ3

not attested not anchored not stored refs pending

Revisiting the formaldehyde masers

D.J. van der Walt, L.L. Mfulwane

arxiv:2112.11897 v1 · 2021-12-22 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DLZVT2GXW52YGLHORMWBGLRNJ3}

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	2026-07-05T03:49:28.468584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1af359e8d7b775832cee8b2c132e2d4eca7405afc43deb9667b2624e75c8052a

Aliases

arxiv: 2112.11897 · arxiv_version: 2112.11897v1 · doi: 10.48550/arxiv.2112.11897 · pith_short_12: DLZVT2GXW52Y · pith_short_16: DLZVT2GXW52YGLHO · pith_short_8: DLZVT2GX

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/DLZVT2GXW52YGLHORMWBGLRNJ3 \
  | 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: 1af359e8d7b775832cee8b2c132e2d4eca7405afc43deb9667b2624e75c8052a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12bed663f9f76e983c72ce36cacb199513ae0df3b53ecdee9be7bef34960dc0a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-12-22T14:29:33Z",
    "title_canon_sha256": "8813993cbe6f4da1d7ea7beebdca613c21a79e16ac622197fc97f091a4137cdc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.11897",
    "kind": "arxiv",
    "version": 1
  }
}