Pith Number

pith:EHR5GFKY

pith:2009:EHR5GFKYSIJQBWBDMW3YH2OSO7

not attested not anchored not stored refs pending

Multiple Sequence Alignment System for Pyrosequencing Reads

Ashfaq Khokhar, Fahad Saeed, Niko Beerenwinkel, Osvaldo Zagordi

arxiv:0901.2753 v1 · 2009-01-19 · q-bio.GN

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EHR5GFKYSIJQBWBDMW3YH2OSO7}

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	2026-05-18T01:05:13.320766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21e3d31558921300d82365b783e9d277c187121f056e5b4aeecc8729b0bdcd39

Aliases

arxiv: 0901.2753 · arxiv_version: 0901.2753v1 · doi: 10.48550/arxiv.0901.2753 · pith_short_12: EHR5GFKYSIJQ · pith_short_16: EHR5GFKYSIJQBWBD · pith_short_8: EHR5GFKY

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/EHR5GFKYSIJQBWBDMW3YH2OSO7 \
  | 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: 21e3d31558921300d82365b783e9d277c187121f056e5b4aeecc8729b0bdcd39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "09cf1f326be36472e45f5809fb1d966879db48f085fcef354d06fc9ffc856500",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.GN",
    "submitted_at": "2009-01-19T00:50:17Z",
    "title_canon_sha256": "a09f9c9133d097bb59b4da33e7cc9c3fc84fde2b619ba7ca2f09c2aa2d92777a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.2753",
    "kind": "arxiv",
    "version": 1
  }
}