Pith Number

pith:BZFGUNFR

pith:2017:BZFGUNFR5BHK2DRREGWDNMGFZB

not attested not anchored not stored refs pending

Gas vs. solid phase deuterated chemistry: HDCO and D$_2$CO in massive star-forming regions

F. Fontani, I. Jimenez-Serra, K. Immer, K. Wang, L. Testi, L. V. Toth, P. Caselli, S. Zahorecz

arxiv:1705.03456 v1 · 2017-05-09 · 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{BZFGUNFR5BHK2DRREGWDNMGFZB}

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	2026-05-18T00:42:28.630966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e4a6a34b1e84ead0e3121ac36b0c5c8598a76acc5cadf49857c8fb082cc72e7

Aliases

arxiv: 1705.03456 · arxiv_version: 1705.03456v1 · doi: 10.48550/arxiv.1705.03456 · pith_short_12: BZFGUNFR5BHK · pith_short_16: BZFGUNFR5BHK2DRR · pith_short_8: BZFGUNFR

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/BZFGUNFR5BHK2DRREGWDNMGFZB \
  | 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: 0e4a6a34b1e84ead0e3121ac36b0c5c8598a76acc5cadf49857c8fb082cc72e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "61639ee28d4577f4e4436f68f3c0ab13f55edb1f8eb568b40bdcff901c7df5bc",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-05-09T04:33:22Z",
    "title_canon_sha256": "60808ccbbfb6b5fc374ae264dd2890250b7ff7fd3146891d5215adf8aff15784"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03456",
    "kind": "arxiv",
    "version": 1
  }
}