Pith Number
pith:UQAPZ6OE
pith:2013:UQAPZ6OEZGDUA4H4RW45VV23SR
not attested
not anchored
not stored
refs pending
A Census of Quasar-Intrinsic Absorption in the Hubble Space Telescope Archive: Systems from High Resolution Echelle Spectra
arxiv:1307.6799 v1 · 2013-07-25 · astro-ph.CO
Add to your LaTeX paper
\usepackage{pith}
\pithnumber{UQAPZ6OEZGDUA4H4RW45VV23SR}
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
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claim
4
Citations
5
Replications
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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 | 2026-05-18T01:48:34.579898Z |
|---|---|
| Builder | pith-number-builder-2026-05-17-v1 |
| Signature | Pith Ed25519
(pith-v1-2026-05) · public key |
| Schema | pith-number/v1.0 |
Canonical hash
a400fcf9c4c9874070fc8db9dad75b946c7be450562ca885b8d854879d3e291c
Aliases
· · · · ·Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/UQAPZ6OEZGDUA4H4RW45VV23SR \
| 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: a400fcf9c4c9874070fc8db9dad75b946c7be450562ca885b8d854879d3e291c
Canonical record JSON
{
"metadata": {
"abstract_canon_sha256": "dc77cb738feb5d0bede53b11b51a72491875f887168f862ea64adbcd2270f182",
"cross_cats_sorted": [],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"primary_cat": "astro-ph.CO",
"submitted_at": "2013-07-25T15:45:45Z",
"title_canon_sha256": "ba0e81e3cbe555e3949ba78a2a5e427d4fad826d1e5c317cbd7fa19826c98630"
},
"schema_version": "1.0",
"source": {
"id": "1307.6799",
"kind": "arxiv",
"version": 1
}
}