Pith Number

pith:PE77ECAY

pith:2019:PE77ECAYHOEDK2G7QOM6IZSVM7

not attested not anchored not stored refs pending

New constraints on the physical conditions in H$_2$-bearing GRB-host damped Lyman-$\alpha$ absorbers

A. de Ugarte Postigo, A. Rossi, C. C. Th\"one, C. Ledoux, D. A. Kann, D. H. Hartmann, D. Watson, J. Bolmer, J. Japelj, J.-K. Krogager, J. P. U. Fynbo, J. Selsing, K. E. Heintz, K. Wiersema, L. Izzo, L. Kaper, M. De Pasquale, N. R. Tanvir, P. Jakobsson, P. Noterdaeme, P. Petitjean, P. Schady, R. Salvaterra, R. Starling, S. Covino, S. D. Vergani, T. Zafar, V. D'Elia

arxiv:1908.02309 v1 · 2019-08-06 · 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{PE77ECAYHOEDK2G7QOM6IZSVM7}

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	2026-07-05T00:05:13.118762Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

793ff208183b883568df8399e4665567f72475ab94c99940eeba2da22e15edcb

Aliases

arxiv: 1908.02309 · arxiv_version: 1908.02309v1 · doi: 10.48550/arxiv.1908.02309 · pith_short_12: PE77ECAYHOED · pith_short_16: PE77ECAYHOEDK2G7 · pith_short_8: PE77ECAY

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/PE77ECAYHOEDK2G7QOM6IZSVM7 \
  | 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: 793ff208183b883568df8399e4665567f72475ab94c99940eeba2da22e15edcb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4e3a09f29e357ed2479bae031d571609e4ed13964db8bf923bba4af55ba35e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-06T18:19:38Z",
    "title_canon_sha256": "4e14bf751379623fa0e280dfa3c7b894c1d49b342d9ae019742122061853de5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02309",
    "kind": "arxiv",
    "version": 1
  }
}