Pith Number

pith:DBTUQHZ4

pith:2020:DBTUQHZ4RGSVU3TBJPJ4YGXKI6

not attested not anchored not stored refs pending

Thermal formation of ammonium carbamate on the surface of laboratory analogues of carbonaceous grains in protostellar envelopes and planet-forming disks

Alexey Potapov, Cornelia J\"ager, Thomas Henning

arxiv:2004.01982 v1 · 2020-04-04 · 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{DBTUQHZ4RGSVU3TBJPJ4YGXKI6}

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	2026-07-05T01:04:21.027184Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1867481f3c89a55a6e614bd3cc1aea47925c6788d6e5b23b0f3be26dfd88710b

Aliases

arxiv: 2004.01982 · arxiv_version: 2004.01982v1 · doi: 10.48550/arxiv.2004.01982 · pith_short_12: DBTUQHZ4RGSV · pith_short_16: DBTUQHZ4RGSVU3TB · pith_short_8: DBTUQHZ4

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/DBTUQHZ4RGSVU3TBJPJ4YGXKI6 \
  | 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: 1867481f3c89a55a6e614bd3cc1aea47925c6788d6e5b23b0f3be26dfd88710b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9061c77ed5606e7b149ec700fc6e7b742b8800c16447b6863c262b641620baf0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-04-04T17:35:07Z",
    "title_canon_sha256": "f859104326e6e5f30d4d8274c3ed277fdc0bc69e35ff77f7a603926a1979b06a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.01982",
    "kind": "arxiv",
    "version": 1
  }
}