Pith Number

pith:ULZ567LK

pith:2017:ULZ567LK2DPUVMBCQHPRZVL2LI

not attested not anchored not stored refs pending

Long-term Variability of H$_2$CO Masers in Star-forming Regions

E. D. Araya, H. Linz, I. Lorran-Costa, I. M. Hoffman, L. Olmi, N. Andreev, P. Hofner, S. Kurtz

arxiv:1709.02903 v1 · 2017-09-09 · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ULZ567LK2DPUVMBCQHPRZVL2LI}

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	2026-05-18T00:31:39.903178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2f3df7d6ad0df4ab02281df1cd57a5a2a348af19dde5ec234e61e114ddc04c3

Aliases

arxiv: 1709.02903 · arxiv_version: 1709.02903v1 · doi: 10.48550/arxiv.1709.02903 · pith_short_12: ULZ567LK2DPU · pith_short_16: ULZ567LK2DPUVMBC · pith_short_8: ULZ567LK

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/ULZ567LK2DPUVMBCQHPRZVL2LI \
  | 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: a2f3df7d6ad0df4ab02281df1cd57a5a2a348af19dde5ec234e61e114ddc04c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3e58fe3fd2267b8295697fb7838bb7e6e738bae774c4dff9849f20a449fefe71",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-09-09T04:02:20Z",
    "title_canon_sha256": "fbb529947fcfe2ec46c9410346801b1dd9f250a024c80921a623ad841ff1556c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.02903",
    "kind": "arxiv",
    "version": 1
  }
}