Pith Number

pith:H3YNBMCN

pith:2011:H3YNBMCN2UIFJ27WXHV4BPCQ32

not attested not anchored not stored refs pending

Masers

Elizabeth Humphreys

arxiv:1104.2306 v1 · 2011-04-12 · astro-ph.IM · 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{H3YNBMCN2UIFJ27WXHV4BPCQ32}

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	2026-05-18T04:24:35.497450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ef0d0b04dd51054ebf6b9ebc0bc50de804becc592227d6db9497747f38d644d

Aliases

arxiv: 1104.2306 · arxiv_version: 1104.2306v1 · doi: 10.48550/arxiv.1104.2306 · pith_short_12: H3YNBMCN2UIF · pith_short_16: H3YNBMCN2UIFJ27W · pith_short_8: H3YNBMCN

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/H3YNBMCN2UIFJ27WXHV4BPCQ32 \
  | 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: 3ef0d0b04dd51054ebf6b9ebc0bc50de804becc592227d6db9497747f38d644d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6451ada456750daeb6f5fc384211adba748d6fcbbbbcfeff82539b018fdf994b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-04-12T19:06:48Z",
    "title_canon_sha256": "a4bc529ad50fd6bc1d574b01b366fd34aba688020d39d1c45c7aac758a6fe1b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.2306",
    "kind": "arxiv",
    "version": 1
  }
}